| chemical attraction of kleptoparasitic flies to heteropteran insects caught by orb-weaving spiders. | insects of the heteropteran families pentatomidae (stink bugs) and coreidae (squash bugs), when being eaten by the orb-weaving spider nephila clavipes, attract flies of the family milichiidae. the flies aggregate on the bugs and, as kleptoparasites, share in the spider's meal. stink bugs and squash bugs typically eject defensive sprays when attacked; they do so when caught by nephila, but the spray only minimally affects the spider. evidence is presented indicating that it is the spray of the bu ... | 1991 | 1896468 |
| comparison of perillus bioculatus and podisus maculiventris (hemiptera:pentatomidae) as potential control agents of the colorado potato beetle (coleoptera:chrysomelidae). | in laboratory and microplot consumption tests, spined soldier bug, podisus maculiventris (say), ate at least as many colorado potato beetle, leptinotarsa decemlineata (say), eggs and larvae as did the twospotted stink bug, perillus bioculatus (f.). p. maculiventris also remained in field microplots infected with colorado potato beetle egg masses for slightly longer than did p. bioculatus. the 2 predators were equally effective at consuming egg masses, reducing densities of beetle larvae, and pre ... | 1996 | 8913113 |
| attachment of metarhizium anisopliae to the southern green stink bug nezara viridula cuticle and fungistatic effect of cuticular lipids and aldehydes. | in this paper we examined the conidial attachment of metarhizium anisopliae on the southern green stink bug, nezara viridula, using the exuvia and nymphal stage of the host as a substrate for m. anisopliae conidiospores. initial studies using fluorescein isothiocyanate (fitc)-labeled conidia examined the differential binding of conidia to various sites on the cuticle. both the topography and the chemistry of the cuticle affected conidial adhesion. conidia were trapped in areas containing large n ... | 1997 | 9028925 |
| laboratory and field studies on the infection of stink bugs, nezara viridula, piezodorus guildinii, and euschistus heros (hemiptera: pentatomidae) with metarhizium anisopliae and beauveria bassiana in brazil | isolates of metarhizium anisopliae (cnpso-ma12) and beauveria bassiana (cnpso-bb56) were tested under field conditions as biological control agents of soybean stink bugs (nezara viridula, piezodorus guildinii, and euschistus heros). kaolin-based powder formulations of m. anisopliae or b. bassiana were applied to soybean plots at a rate of 1.5 x 10(13) conidia per ha. after treatment, field cages (0.25 m2) were placed in plots and stink bug adults were introduced into the cages. mycosis for both ... | 1998 | 9500941 |
| vibrational directionality in the southern green stink bug, nezara viridula (l.), is mediated by female song. | we tested the hypothesis that male southern green stink bugs, nezara viridula (l.), use substrate-borne songs to locate females. we recorded the responses of bugs on plants to the vibrations caused by a prerecorded female song and by an artificial sound. the female song caused males to walk, to respond with the calling and courtship songs and to approach the source of the song with characteristic search behaviour at junctions between branches on the plants. at a junction, a searching male stoppe ... | 1999 | 10600150 |
| sequestration of host plant-derived compounds by geometrid moth, milionia basalis, toxic to a predatory stink bug, eocanthecona furcellata. | a predatory stink bug, eocanthecona furcellata, died after feeding on milionia basalis larvae. the compounds toxic to e. furcellata were isolated from the hemolymph of m. basalis larvae and identified as inumakilactone a, nagilactone c, and nagilactone c glucoside. the concentrations of inumakilactone a, nagilactone c, and nagilactone c glucoside in the hemolymph of the final instar larvae were 130, 50, and 770 microg/ml, respectively. nagilactone c showed the highest insecticidal activity again ... | 2001 | 11504032 |
| development and implementation of a reduced risk peach arthropod management program in new jersey. | we implemented a 2-yr program to reduce organophosphorus and carbamate insecticide use and mitigate their associated risks as they relate to peach production in new jersey and elsewhere. the main thrust integrated mating disruption with ground cover management practices to reduce oriental fruit moth, grapholita molesta (busck) (lepidoptera: tortricidae), and tarnished plant bug, lygus lineolaris (palisot de beauvois) (heteroptera: miridae), abundance and damage. this reduced risk peach arthropod ... | 2002 | 12216824 |
| kairomone strains of euclytiaflava (townsend), a parasitoid of stink bugs. | tachinid flies commonly use the pheromones and allomones of stink bugs (pentatomidae) as host-finding kairomones. pheromone-baited traps for predaceous (podisus spp.) and phytophagous (euschistus spp.) pentatomids were used to obtain tachinid parasitoids in order to study the semiochemical relationships between these parasitic flies and their stink bug hosts. gas chromatography-electroantennogram detector (gc-ead) experiments and field tests were conducted to determine if pheromone strains of th ... | 2002 | 12371810 |
| effect of age, diet, diapause and juvenile hormone on oogenesis and the amount of vitellogenin and vitellin in the twospotted stink bug, perillus bioculatus (heteroptera: pentatomidae). | vitellogenic oocytes from perillus bioculatus have two native vitellins, vt1 and vt2, with molecular masses of 553 and 228 kda, respectively. the hemolymph contains a major vitellogenin, vg, with a molecular mass of 528 kda that consists of three apoproteins with masses of 177, 84 and 59 kda, respectively. antibodies to purified vt2 reacted with ovary extracts, egg extracts and female hemolymph, but not with male hemolymph in immunodiffusion tests. western blots showed that anti vt2 reacted with ... | 2002 | 12770097 |
| photoperiod influence on the biology and phenological characteristics of dichelops melacanthus (dallas, 1851) (heteroptera: pentatomidae). | the influence of the photoperiod on the biology and seasonal morphs of dichelops melacanthus (dallas, 1851) was studied in the laboratory. four different photoperiods (11, 12, 13, and 14 hl = hours of light) were tested, keeping the temperature at 25 +/- 1 masculine c and the relative humidity at 65 +/- 5%. nymph developmental time tended to be longer under shorter photophases (11 and 12 hl). the 14-hour photophase (long day) resulted in lower nymph mortality rates. females maintained at 13 and ... | 2004 | 15029376 |
| the wart-like chorion of edessa bifida (hemiptera: pentatomidae). | there is the suspicion that the stink bug edessa bifida invades cotton fields in southern parts of north america. to assist in the early detection of the bug, the morphology of deposited eggs of e. bifida is described using scanning electron microscopy (sem). the study revealed a surface pattern not yet seen in the pentatomidae. the almost spherical eggs are deposited in batches and fastened both to one another and to the plant surface by secretions in all likelihood produced by the female. the ... | 2003 | 15137688 |
| chemical and physical signals mediating conspecific and heterospecific aggregation behavior of first instar stink bugs. | we investigated cues that mediate the aggregation behavior of immature pentatomid bugs by using nymphs of six different pentatomid bug species (nezara viridula, acrosternum hilare, chlorochroa ligata, chlorochroa sayi, thyanta pallidovirens, and euschistus conspersus). when first instars of any two species were put together in a petri dish, they readily formed heterospecific aggregations similar to their natural conspecific aggregations. the chemical profiles of first and second instar nymphs of ... | 2004 | 15303327 |
| cotton boll age influences feeding preference by brown stink bug (heteroptera: pentatomidae). | cotton plants were infested with brown stink bug, euschistus servus (say), to define cotton boll age classes (based on heat unit accumulation beyond anthesis) that are most frequently injured during each of the initial 5 wk of flowering. bolls from each week were grouped into discrete age classes and evaluated for the presence of stink bug injury. brown stink bug injured significantly more bolls of age class b (approximately 165-336 heat units), age class c (approximately 330-504 heat units), an ... | 2005 | 15765668 |
| monitoring stink bugs (hemiptera: pentatomidae) in mid-atlantic apple and peach orchards. | pyramid traps coated with "industrial safety yellow" exterior latex gloss enamel paint and baited with euschistus spp. aggregation pheromone, methyl (2e,4z)-decadienoate captured more stink bugs than all other baited and unbaited trap types in both apple and peach orchards in 2002 and 2003. commercial sources of dispensers of methyl (2e,4z)-decadienoate deployed in association with pyramid traps had a significant impact on trap captures. captures in pyramid traps were four-fold greater when bait ... | 2005 | 15765676 |
| toxicity of insecticides in a glass-vial bioassay to adult brown, green, and southern green stink bugs (heteroptera: pentatomidae). | adult brown, euschistus servus (say); green, acrosternum hilare (say); and southern green, nezara viridula (l.), stink bugs were collected from soybean, glycine max (l.) merr., in fall 2001 and 2002 near stoneville, ms, and eudora, ar. a glass-vial bioassay was used to determine lc50 values for the three species of stink bugs for the pyrethroids bifenthrin, cypermethrin, cyfluthrin, lambda-cyhalothrin, and permethrin, and the organophosphates acephate, dicrotophos, malathion, and methyl parathio ... | 2005 | 15765680 |
| precocious induction of vitellogenin with jh iii in the twospotted stink bug, perillus bioculatus (heteroptera: pentatomidae). | the effect of juvenile hormone (jh) iii on the hemolymph composition of vitellogenin was examined in perillus bioculatus. adult females were treated topically with jh iii, and the premature presence of vitellogenin in the hemolymph was then detected using electrophoresis and western blot analyses. jh iii treatment resulted in a dose-dependent early production of vitellogenin that was detectable 48 h before vitellogenin was present in non-treated insects. vitellogenin was not observed in the hemo ... | 2005 | 16129637 |
| genetic differentiation of geographically separated populations of the southern green stink bug nezara viridula (hemiptera: pentatomidae). | genetic variation in the southern green stink bug nezara viridula (linnaeus) from 11 geographically separated sampling locations (slovenia, france, greece, italy, madeira, japan, guadeloupe, galapagos, california, brazil and botswana) was studied by sequencing 16s and 28s rdna, cytochrome b and cytochrome c oxidase subunit i gene fragments and random amplified polymorphic dna (rapd) analysis. sequencing revealed 11 distinct haplotypes clustering into lineages a, b and c. lineage c was characteri ... | 2006 | 16556332 |
| susceptibility of pest nezara viridula (heteroptera: pentatomidae) and parasitoid trichopoda pennipes (diptera: tachinidae) to selected insecticides. | susceptibility of the southern green stink bug, nezara viridula (l.) (heteroptera: pentatomidae), and its endoparasitoid trichopoda pennipes (f.) (diptera: tachinidae) to acetamiprid, cyfluthrin, dicrotophos, indoxacarb, oxamyl, and thiamethoxam was compared in residual and oral toxicity tests. in the residual toxicity test, cyfluthrin, dicrotophos, and oxamyl were highly toxic to n. viridula. thiamethoxam was moderately toxic to these insects. each of the four insecticides was highly toxic to t ... | 2006 | 16813294 |
| toxicity of fenitrothion, an organophosphorus pesticide, against summer population of sunn pest, eurygaster integriceps put. (hemiptera: scutelleridae). | the sunn pest are a group of insect representing several genera of the shield bug (scutelleridae) and stink bug (pentatomidae) families, with the species eurygaster integriceps being the most economically important. the sunn pest is a major pest of wheat and barley in central and western asia and it accounts for annual losses of 20-30% for barley and up to 100% for wheat. in the recent decades problems have intensified largely due to change in farming practices. thus this pest threatens food sec ... | 2005 | 16628916 |
| tuning of host plants with vibratory songs of nezara viridula l (heteroptera: pentatomidae). | songs of the southern green stink bug nezara viridula l, recorded on a non-resonant loudspeaker membrane, reflect frequency characteristics of body vibrations. the song dominant frequency directly depends on the repetition rate of potentials recorded from synchronously contracting muscles that vibrate the abdomen during singing. spectra of naturally emitted signals recorded on the pronotum of a singing bug or on a plant contain peaks characteristic of plant resonant spectra. the dominant resonan ... | 2005 | 15802672 |
| impacts of biological control and invasive species on a non-target native hawaiian insect. | the potential for classical biological control to cause unintended harm to native species was evaluated in the case of the endemic hawaiian koa bug, coleotichus blackburniae white (hemiptera: scutelleridae), and parasitoids introduced to hawaii for control of an agricultural pest, the southern green stink bug, nezara viridula (l.) (hemiptera: pentatomidae). parasitism of c. blackburniae eggs, nymphs and adults by biocontrol agents was quantified across a wide range of habitats and compared to ot ... | 2004 | 15688213 |
| boll injury and yield losses in cotton associated with brown stink bug (heteroptera: pentatomidae) during flowering. | brown stink bug, euschistus servus (say), was infested on cotton, gossypium hirsutum l., plants during reproductive stages to determine the effects on boll injury and seedcotton yield. during each week in 2002 and 2003, significantly more bolls with > or = 1 injured locule, bolls with > or = 2 injured locules, and bolls with discolored lint were recorded on stink bug-infested plants compared with that on noninfested plants. significantly fewer bolls displayed external injury on the boll exocarp ... | 2004 | 15666747 |
| influence of cover crops on insect pests and predators in conservation tillage cotton. | in fall 2000, an on-farm sustainable agricultural research project was established for cotton, gossypium hirsutum l., in tift county, georgia. the objective of our 2-yr research project was to determine the impact of several cover crops on pest and predator insects in cotton. the five cover crop treatments included 1) cereal rye, secale cereale l., a standard grass cover crop; 2) crimson clover, trifolium incarnatum l., a standard legume cover crop; 3) a legume mixture of balansa clover, trifoli ... | 2004 | 15384330 |
| comparison of susceptibility of pest euschistus servus and predator podisus maculiventris (heteroptera: pentatomidae) to selected insecticides. | susceptibility of the brown stink bug, euschistus serous (say), and the spined soldier bug, podisus maculiventris (say), to acetamiprid, cyfluthrin, dicrotophos, indoxacarb, oxamyl, and thiamethoxam, was compared in residual and oral toxicity tests. generally, susceptibility of p. maculiventris to insecticides was significantly greater than or not significantly different from that of e. servus. cyfluthrin and oxamyl were more toxic to the predator than to e. servus in residual and feeding tests, ... | 2004 | 15279256 |
| possible egg positioning and gluing behavior by ovipositing southern green stink bug, nezara viridula (l.) (heteroptera: pentatomidae). | from march 2002 to january 2004, a colony of southern green stink bug, nezara viridula (l.), was kept in the laboratory, and its oviposition behavior was observed. during oviposition, soon after the egg is expelled, the female touches the egg mass with the dorsal surface of the last tarsomere; this movement of one leg of the hind pair occurred once. this small component of the oviposition behavior of this pentatomid is little known and not yet fully understood; it may help to position and glue t ... | 2006 | 17352083 |
| a male-produced sex pheromone from the neotropical redbanded stink bug, piezodorus guildinii (w). | the male-produced sex pheromone of the neotropical redbanded stink bug, piezodorus guildinii (w.) (hemiptera: pentatomidae), a serious pest of soybean in central and south america, was identified as the sesquiterpene hydrocarbon beta-sesquiphellandrene by coupled gas chromatography-mass spectrometry and laboratory bioassays. the identity was confirmed by comparison with an authentic standard, and its absolute configuration was determined to be (7r)-(+)-beta-sesquiphellandrene. the mean rate of r ... | 2007 | 17453323 |
| wild hosts of pentatomids: ecological significance and role in their pest status on crops. | phytophagous stink bugs (heteroptera: pentatomidae) are important pests of many crops, feeding mostly on seeds and immature fruits. during feeding they introduce their stylets to remove the cells' contents. the resulting damage includes drop and/or malformation of seeds and fruits. as stink bugs are generally polyphagous, they feed on cultivated and uncultivated plants; consequently, wild host plants play an important role in the increase in population levels of agricultural pest species. these ... | 1997 | 15012309 |
| flavonoid increase in soybean as a response to nezara viridula injury and its effect on insect-feeding preference. | the ability of the stink bug (nezara viridula) to induce and/or increase production of chemical defenses, i.e., flavonoids, in immature seeds of five genotypes of soybean (br-16, iac-100, pi 227687, pi 229358, and pi 274454) was investigated under greenhouse and laboratory conditions. samples from pods of each genotype damaged by stink bug were analyzed for flavonoid content with high performance liquid chromatography. a dual-choice test was conducted to evaluate the feeding preference of n. vir ... | 2003 | 12857032 |
| toxicity of chromobacterium subtsugae to southern green stink bug (heteroptera: pentatomidae) and corn rootworm (coleoptera: chrysomelidae). | diabrotica spp. (coleoptera: chrysomelidae) beetles and southern green stink bugs, nezara viridula (l.) (heteroptera: pentatomidae), are pests on corn, zea mays l., and soybean, glycine max (l.) merr., as well as on cucurbits. control of these insects has depended on chemicals. an alternative to chemical control is the use of biologicals. use of bacteria, fungi, viruses, pheromones, and metabolites to control these insects can potentially improve resistance management and reduce pesticide use. o ... | 2007 | 17598525 |
| influence of herbicide tolerant soybean production systems on insect pest populations and pest-induced crop damage. | conventional soybean weed management and transgenic herbicide-tolerant management were examined to assess their effects on soybean insect pest populations in south georgia in 1997 and 1998. soybean variety had very little impact on the insect species observed, except that maturity group effects were observed for stink bug, primarily nezara viridula (l.), population densities on some sampling dates. stink bugs were more abundant on the early maturing varieties in mid-season. velvetbean caterpilla ... | 2003 | 12852606 |
| transmission of cotton seed and boll rotting bacteria by the southern green stink bug (nezara viridula l.). | to determine the ability of the southern green stink bug (sgsb) (nezara viridula l.) to transmit pantoea agglomerans into cotton (gossypium hirsutum) bolls. | 2007 | 17650204 |
| field screening of experimental corn hybrids and inbred lines for multiple ear-feeding insect resistance. | identifying and using native insect resistance genes is the core of integrated pest management. in this study, 10 experimental corn, zea mays l., hybrids and 10 inbred lines were screened for resistance to major ear-feeding insects in the southeastern coastal plain region of the united states during 2004 and 2005. ear-feeding insect damage was assessed at harvest by visual damage rating for the corn earworm, helicoverpa zea (boddie), and by the percentage of kernels damaged by the maize weevil, ... | 2007 | 17972651 |
| entering diapause is a prerequisite for successful cold-acclimation in adult graphosoma lineatum (heteroptera: pentatomidae). | in diapause adults of graphosoma lineatum overwintering in a field-cage, high chill-tolerance (ct) developed gradually, within 5 months from august to december. in laboratory-acclimation experiments, the diapause state appeared to be an essential pre-condition for successful cold-acclimation and overwintering. first, diapause prevented elevation of the median supercooling point (scp) by about 5.5 degrees c that accompanies the onset of reproductive activity in non-diapause specimens. second, dia ... | 2002 | 12770026 |
| factors influencing mate choice in euschistus conspersus uhler (heteroptera: pentatomidae). | the patterns of mating and possible factors influencing mate choice in the consperse stink bug, euschistus conspersus uhler, were studied in a series of laboratory experiments. males were found to transfer a significant percentage of their body mass during the initial mating. mating was also found to reduce male longevity by 37.8% but had no significant effect on female longevity or fecundity. there was no evidence of male or female choice based on weight of potential mating partners. there was ... | 2008 | 18348810 |
| stink bug interaction with host plants during communication. | in solitary plant-dwelling stink bug species, success depends crucially on efficient mate location and recognition, mediated by signals transmitted through the plant. all stink bugs investigated so far communicate with species and sex-specific narrow-band calling and courtship song signals produced by abdomen vibration. calling songs of lower specificity are characterized by readily repeated units emitted with regular repetition rate from the same place on a plant, while courtship songs take pla ... | 2008 | 18634798 |
| aglomerular hemipteran antennal lobes--basic neuroanatomy of a small nose. | we have compared the basic organization of the primary olfactory centre, the antennal lobe (al), in 4 hemipteran species representing the 2 major lineages in this order. the homoptera were represented by the psyllid trioza apicalis and its aphid relatives the grain aphid sitobion avenae fabricius and the rose-grain aphid metopolophium dirhodum walker, whereas the heteroptera were represented by the pentatomid stink bug euschistus heros fabricius. the olfactory systems of psyllids and aphids are ... | 2008 | 18653643 |
| toxicity of insecticides to halyomorpha halys (hemiptera: pentatomidae) using glass-vial bioassays. | a scintillation glass-vial bioassay was used to test technical grade insecticides against the non-native stink bug halyomorpha halys (stål). halyomorpha halys (stål) (hemiptera: pentatomidae) is emerging as an important pest in the mid-atlantic states, especially in tree fruits and as a homeowner nuisance during the winter. pyrethroid insecticides, especially bifenthrin, caused mortality against h. halys at low doses, with lc50 values of 0.03-0.49 (microg [ai]/cm2) (mg body mass(-1)). three nico ... | 2008 | 18767758 |
| identification of multiple ear-colonizing insect and disease resistance in cimmyt maize inbred lines with varying levels of silk maysin. | ninety four corn inbred lines selected from international center for the improvement of maize and wheat (cimmyt) in mexico were evaluated for levels of silk maysin in 2001 and 2002. damage by major ear-feeding insects [i.e., corn earworm, helicoverpa zea (boddie) (lepidoptera: noctuidae); maize weevil, sitophilus zeamais (motschulsky) (coleoptera: curculionidae); brown stink bug, euschistus servus (say); southern green stink bugs, nezara viridula (l.) (heteroptera: pentatomidae)], and common smu ... | 2008 | 18767760 |
| phylogenetic placement of pentatomid stink bug gut symbionts. | insect bacterial symbionts are ubiquitous, however, only a few groups of host families have been well studied in relation to their associations with microbes. the determination of the phylogenetic relationships among bacteria associated with different species within an insect family can provide insights into the biology and evolution of these interactions. we studied the phylogenetic placement of vertically transmitted bacterial symbionts associated with the posterior midgut (crypt-bearing) regi ... | 2009 | 18810535 |
| the chemical volatiles (semiochemicals) produced by neotropical stink bugs (hemiptera: pentatomidae). | in recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. the stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. the stink bugs chinavia impicticornis (stål), c. ubica (rolston), dichelops melacanthus (dallas), euschistus heros (f.), piezodorus guildinii (westwood), thyanta perditor (westwood) and ... | 2008 | 19061033 |
| neuropeptides in heteroptera: identification of allatotropin-related peptide and tachykinin-related peptides using maldi-tof mass spectrometry. | recently, the peptidomic analysis of neuropeptides from the retrocerebral complex and abdominal perisympathetic organs of polyphagous stinkbugs (pentatomidae) revealed the group-specific sequences of pyrokinins, capa peptides (capa-periviscerokinins/pvks and capa-pyrokinin), myosuppressin, corazonin, adipokinetic hormone, and short neuropeptide f. in this study, we used mass spectrometric profiling of nervous tissue from the species-rich taxon hemiptera to identify products of two previously uno ... | 2009 | 19084564 |
| optical illusions in scanning electron micrographs: the case of the eggshell of acrosternum (chinavia) marginatum (hemiptera: pentatomidae). | scanning electron microscopy revealed that-as is common in this family of the hemiptera-the eggs of the green stink bug acrosternum (chinavia) marginatum are roughly barrel-shaped and possess at their apical pole a row of slender extensions, the aero-micropylar processes. the outer surface of the eggshell carries hexagonally arranged pits. the analysis of cross-fractured eggshells showed that the pits have slender basal extensions with transverse diaphragms. when scanning electron micrographs of ... | 2003 | 12694858 |
| variability of vibratory signals and mate choice selectivity in the southern green stink bug. | the southern green stink bug, nezara viridula, has a complex mate recognition system that implicates chemical and acoustic signals. to localise a sexual partner acoustically, a male and female alternate between the male courtship song (mcrs) and the female calling song type 1 (fcs1). although previous research has revealed that both signals show geographical variability, until now no studies have explored the form of this variability. we analysed the temporal and spectral characteristics of mcrs ... | 2003 | 12642169 |
| photophase influence on the reproductive diapause, seasonal morphs, and feeding activity of euschistus heros (fabr., 1798) (hemiptera: pentatomidae). | laboratory studies were conducted to verify the influence of photophase on diapause incidence in the neotropical brown stink bug, euschistus heros (fabr., 1798), fed with soybean [glycine max (l.)] merrill pods. nymphs were maintained at three different photophases: 10 h, 12 h, and 14 h, with constant temperature of 25 +/- 1 degree c and relative humidity of 65 +/- 5%. with 14 h, approximately 100% of the adults showed mature reproductive organs; the shoulder (spine) length was significantly gre ... | 2002 | 12489395 |
| sex attractant pheromone of the red-shouldered stink bug thyanta pallidovirens: a pheromone blend with multiple redundant components. | the male-produced sex pheromone of the red-shouldered stink bug, thyanta pallidovirens (stål) (hemiptera: pentatomidae) consists of a blend of methyl (e2,z4,z6)-decatrienoate (e2,z4,z6-10:coome), and the sesquiterpenes (+)-alpha-curcumene, (-)-zingiberene, and (-)-beta-sesquiphellandrene. in laboratory bioassays, sexually mature males attracted sexually mature females but not males, and females did not attract either sex. extracts of volatiles collected from sexually mature males contained compo ... | 2002 | 12449507 |
| survey of stink bug (hemiptera: pentatomidae) egg parasitoids in wheat, soybean, and vegetable crops in southeast virginia. | stink bugs (hemiptera: pentatomidae) cause significant damage to many different crops and horticultural commodities in virginia. however, little is known about the species diversity or impact of stink bug egg parasitoids in the state. a survey was conducted in 2005 and 2006 (may through september) in wheat (triticum aestivum l.), soybean (glycine max l.), and several vegetable crops by collecting natural egg masses of various stink bug species and by monitoring sentinel egg masses. a total of 57 ... | 2009 | 19389285 |
| eggs of the stink bug acrosternum (chinavia) marginatum (hemiptera: pentatomidae): a scanning electron microscopy study. | the morphology of the outer face of the eggshell, its appearance in cross fractures and the surface morphology of the inner face are described in the green stink bug acrosternum (chinavia) marginatum (hemiptera: pentatomidae) using scanning electron microscopy. deposited eggs are barrel-shaped and the surface consists of hexagonally arranged, funnel-shaped pits that possess transverse diaphragms in their slender, basal portions. only minor differences are detectable between the central portion o ... | 2002 | 12117274 |
| skin lesions caused by stink bugs (insecta: heteroptera: pentatomidae): first report of dermatological injuries in humans. | | 2002 | 11929062 |
| field attraction of the stink bug euschistus conspersus (hemiptera: pentatomidae) to synthetic pheromone-baited host plants. | the attraction of the stink bug euschistus conspersus uhler to sources of the synthetic pheromone component methyl (2e,4z)-decadienoate was investigated in a series of field experiments in native vegetation surrounding commercial apple orchards in washington. in experiments with pheromone lures placed inside two different tube-type traps, stink bugs were attracted to the immediate area around traps in large numbers, but very few were caught in the traps. pheromone lures attached directly to the ... | 2001 | 11777055 |
| potential for nezara viridula (hemiptera: pentatomidae) to transmit bacterial and fungal pathogens into cotton bolls. | recently, we showed that the southern green stink bug (sgsb), nezara viridula (l.), can transmit pantoea agglomerans (ewing and fife), an opportunistic bacterium, into green cotton bolls resulting in plant disease. here, we hypothesized that our established model could be used to determine if the sgsb was a general, non-discriminate vector by using two other opportunistic bacterial pathogens of bolls (pantoea ananatis [serano] and klebsiella pneumoniae [schroeter]) and the known fungal pathogen ... | 2009 | 19636620 |
| spatiotemporal patterns and dispersal of stink bugs (heteroptera: pentatomidae) in peanut-cotton farmscapes. | in the southeast united states, a field of peanuts, arachis hypogaea l., is often closely associated with a field of cotton, gossypium hirsutum l. the objective of this 4-yr on-farm study was to examine and compare the spatiotemporal patterns and dispersal of the southern green stink bug, nezara viridula l., and the brown stink bug, euschistus servus (say), in six of these peanut-cotton farmscapes. gs(+) version 9 was used to generate interpolated estimates of stink bug density by inverse distan ... | 2009 | 19689882 |
| identification and synthesis of male-produced sex pheromone components of the stink bugs chlorochroa ligata and chlorochroa uhleri. | the reproductive behaviors of the stink bugs chlorochroa ligata and c. uhleri were studied in the laboratory. adults of both species became sexually mature about 12-14 days after the final molt, and both sexes mated multiple times during their lifetimes. the mean duration of copulation was 54 +/- 24 min for virgin bugs and 46 +/- 33 min for experienced bugs for c. ligata and 78 +/- 55 min for field-collected c. uhleri of unknown mating status. male c. ligata were found to transfer a significant ... | 2001 | 11710612 |
| treatment thresholds for stink bugs (hemiptera: pentatomidae) in cotton. | the green stink bug, acrosternum hilare (say), the southern green stink bug, nezara viridula (l), and the brown stink bug, euschistus servus (say), were predominant phytophagous pentatomidae detected during 1995-1997 in cotton in south carolina. these species occurred in similar numbers in conventional and transgenic cotton 'nucotn33b', containing the gene for expression of cryia(c) delta-endotoxin of bacillus thuringiensis berliner variety kurstaki. adult stink bugs moved into cotton from wild ... | 2001 | 11332832 |
| crop juxtaposition affects cotton fiber quality in georgia farmscapes. | phytophagous stink bugs (hemiptera: pentatomidae), including green stink bug [acrosternum hilare (say)], southern green stink bug [nezara viridula (l.)], and brown stink bug [euschistus servus (say)], have become a serious production issue for southeastern u.s. cotton, gossypium hirsutum l., growers. to investigate how different agronomic crops may affect stink bug damage and fiber quality in neighboring cotton fields, replicated 1.6-2.0-ha trials were planted with corn (zea mays l.), peanut (ar ... | 2009 | 19736764 |
| complete mitochondrial genome of brown marmorated stink bug halyomorpha halys (hemiptera: pentatomidae), and phylogenetic relationships of hemipteran suborders. | the newly sequenced complete mitochondrial genome of the brown marmorated stink bug, halyomorpha halys (stål) (hemiptera: pentatomidae), is a circular molecule of 16,518 bp with a total a+t content of 76.4% and two extensive repeat regions in a+t rich region. nucleotide composition and codon usage of h. halys are about average when compared with values observed in 19 other published hemipteran mitochondrial genomes. phylogenetic analyses using these 20 hemipteran mitochondrial genomes support th ... | 2009 | 19756390 |
| [occurrence and performance of euschistus heros (f.) (heteroptera: pentatomidae) on alternative host plants in rio grande do sul state, brazil]. | the neotropical brown stink bug euschistus heros (f.) can reach high densities in some soybean areas in brazil. besides soybean, it also feeds on other plants, but little is known on the alternative hosts of e. heros in rio grande do sul state. in this study, wild non-cultivated hosts of e. heros at norwest of rio grande do sul state were determined, and the e. heros performance was compared when fed on soybean and on wild hosts. bugs were sought in plants located inside and on the edge of soybe ... | 2009 | 19768262 |
| neurohormones implicated in the control of malpighian tubule secretion in plant sucking heteropterans: the stink bugs acrosternum hilare and nezara viridula. | plant sucking heteropteran bugs feed regularly on small amounts of k(+)-rich plant material, in contrast to their hematophagous relatives which imbibe large volumes of na(+)-rich blood. it was anticipated that this would be reflected in the endocrine control of malpighian tubule (mt) secretion. to explore this, neuroendocrine factors known to influence mt secretion were tested on mt of the pentatomid plant sucking stink bugs, acrosternum hilare and nezara viridula, and the results compared with ... | 2010 | 19772880 |
| demography of gut symbiotic and aposymbiotic nezara viridula l. (hemiptera: pentatomidae). | nezara viridula l. is a highly polyphagous and cosmopolitan pentatomid stink bug. despite its economic importance, aspects of its biology are poorly understood. n. viridula has one primary bacterium associated with its gastric caeca, which females provide to offspring by smearing it on the surface of eggs during oviposition. we studied the impact of three temperatures and egg mass surface sterilization on n. viridula's nymphal development rate and reproductive performance. our results show that ... | 2009 | 19791602 |
| toxicity, feeding preference, and repellency associated with selected organic insecticides against acrosternum hilare and euschistus servus (hemiptera: pentatomidae). | experiments were conducted to evaluate the toxicity, feeding preference, repellency, and field efficacy associated with the organic insecticides azadirachtin, pyrethrins, and spinosad against two stink bug species, acrosternum hilare (say) and euschistus servus (say) (hemiptera: pentatomidae). laboratory toxicity bioassays were conducted using treated green bean pods. the conventional pyrethroid lamda-cyhalothrin was included for comparison. a. hilare adults and nymphs were most susceptible to l ... | 2009 | 19886457 |
| a new methodology for processing mouthparts of hemipterans (hemiptera) for microscopic studies. | a new methodology has been developed to produce sections as thin as 5 microm of stink bug (heteroptera: pentatomidae) mouthparts for morphological studies. heads of the southern green stink bug, nezara viridula (l.) (heteroptera: pentatomidae) were fixed on bouin solution, and treated with edta (ethylenediamine tetraacetic acid 7%) in an ice bath within a microwave oven for 0.5, 1, 2, 3, 4, and 5 h. the chitin structures and labium soft parts were well preserved after 0.5h edta treatment. longer ... | 2010 | 19900815 |
| songs of holcostethus strictus (fabricius): a different repertoire among landbugs (heteroptera: pentatomidae). | songs emitted during mating by male and female holcostethus strictus were recorded as substrate vibrations. spectra of the vibrational signals have a dominant frequency peak between 100 and 260 hz and in this respect reflect the general characteristic of the family pentatomidae. songs of h. strictus differ from the song repertoire of the southern green stink bug nezara viridula (l.) (pentatomidae) in many respects. the female calling and courtship songs differ in echeme and phrase duration. the ... | 2001 | 11254993 |
| sampling stink bugs (hemiptera: pentatomidae) for population estimation and pest management in southeastern cotton production. | stink bugs (hemiptera: pentatomidae) were sampled in commercial cotton, gossypium hirsutum l., fields in 2007 and 2008 in south carolina and georgia. the main species collected with the beat cloth and sweep net methods were green stink bug, acrosternum hilare (say) (63 and 57%, respectively); brown stink bug, euschistus servus (say) (23 and 18%, respectively); and southern green stink bug, nezara viridula (l.) (14 and 22%, respectively). average stink bug densities were 0.145 +/- 0.010 (mean +/- ... | 2009 | 20069868 |
| delayed maturity associated with southern green stink bug (heteroptera: pentatomidae) injury at various soybean phenological stages. | delayed maturity in soybean, glycine max (l.) merr., occurred in response to infestation by southern green stink bug, nezara viridula (l.), in 4 yr of field studies. maturity delays followed stink bug infestation that occurred only during the pod set and filling stages (r3-r5.5), and infestations at r3-4 and r5 resulted in delayed maturity more consistently than did infestation at r5.5. infestation levels of six stink bugs per 0.3 m of row for 7-14 d generally were required to delay soybean matu ... | 2000 | 10902319 |
| dynamics and seasonal abundance of stink bugs (heteroptera: pentatomidae) in a cotton-soybean ecosystem. | two soybean varieties (early-maturing group v and late-maturing group vii) and two cotton varieties (conventional and transgenic (bt) were grown in adjacent replicated large field plots (approximately 0.1 ha each) at two locations for 3 yr. the dynamics and relative abundance of phytophagous stink bugs within these two crops were observed. the most abundant pentatomid species in both crops for all 3 yr were nezara viridula (l.), acrosternum hilare (say), and euschistus servus (say). several othe ... | 2000 | 10902318 |
| non-genetic benefits of mate choice: fecundity enhancement and sexy sons. | i compared reproductive success (lifetime number of fertilized eggs) as a function of mate choice among females of the stink bug, nezara viridula l. (hemiptera: pentatomidae). 'choosing' (c) females were placed with one of two males on alternate days. ci females chose between inexperienced males while cr females chose between males previously rejected by ci females. 'non-choosing' (n) females were placed with the same male every day. non-choosing ni, nr and na females encountered, respectively, ... | 1998 | 9632504 |
| pheromone attraction and cross-attraction of nezara, acrosternum, and euschistus spp. stink bugs (heteroptera: pentatomidae) in the field. | detecting infestations of stink bugs (heteroptera: pentatomidae) using pheromones remains problematic, particularly so in the united states for the exotic stink bug, nezara viridula l., and our native stink bug, acrosternum hilare (say). therefore, we conducted a 2-yr on-farm study to examine the attractiveness and possible cross-attraction of the reported pheromones for n. viridula and a. hilare and those previously discovered for euschistus servus (say) and plautia stali scott to n. viridula, ... | 2010 | 20388294 |
| comparison of microfilament patterns in nurse cells of different insects with polytrophic and telotrophic ovarioles. | the localization of f-actin (microfilaments) in the nurse cells of ovarian follicles has been studied in 12 different insect species by fluorescence microscopy after specifically staining f-actin with rhodamine-conjugated phalloidin. in the analysed species with polytrophic ovaries (apis mellifica, pimpla turionellae, bradysia tritici, ephestia kuehniella, protophormia terraenovae) a dense f-actin network was found to be associated with the nurse cell membranes. only in protophormia were microfi ... | 1986 | 3734686 |
| influence of feeding and oviposition by phytophagous pentatomids on photosynthesis of herbaceous plants. | feeding by herbivorous insects may change photosynthetic activity of host plants. we studied how feeding and oviposition by herbivorous stink bugs, murgantia histrionica and nezara viridula (heteroptera: pentatomidae), affect photosynthetic parameters of brassica oleracea (savoy cabbage) and phaseolus vulgaris (french bean). first, we measured photosynthetic gas exchange, chlorophyll fluorescence imaging, and emission of induced volatile organic compounds (voc) immediately after feeding and duri ... | 2010 | 20490900 |
| assessing nezara viridula (hemiptera: pentatomidae) feeding damage in macadamia nuts by using a biological stain. | damage caused by southern green stink bug, nezara viridula (l.), to macadamia nuts, macadamia integrifolia maiden & betche, is normally determined after nuts are harvested and processed, which may be many months after damage occurred in the field. we developed a method using ruthenium red dye to stain stink bug feeding probes and indirectly assess feeding activity in macadamia nuts. by using the staining method, feeding probes were easily detected on the husk, shell, and kernel. husk probing was ... | 2006 | 16813317 |
| effect of host kairomones and oviposition experience on the arrestment behavior of an egg parasitoid. | chemical residues left by walking adults of the southern green stink bug, nezara viridula (l.) (heteroptera: pentatomidae) induce arrestment behavior in the egg parasitoid trissolcus basalis (wollaston) (hymenoptera: scelionidae) leading to prolonged periods of walking on contaminated areas and to systematic return to the stimulus after encountering the treatment borders. in this study, we quantified how the hierarchical value of residues from host adults and oviposition experience can influence ... | 2006 | 16943503 |
| population structure of the brazilian southern green stink bug, nezara viridula. | the southern green stink bug, nezara viridula (l.) (heteroptera: pentatomidae), is a cosmopolitan and economically important pest to several crops. studies on n. viridula migration and population structure have been neglected. we studied geographically distinct brazilian n. viridula populations to assess their variability and to determine gene flow among them. dna from specimens collected on soybean fields were subjected to rapd analysis to determine genetic similarity and population structure p ... | 2005 | 17119605 |
| effect of relative humidity on emergence and on dispersal and regrouping of first instar nezara viridula (l.) (hemiptera: pentatomidae). | laboratory studies with 1st instar of southern green stink bug, nezara viridula (l.) indicated that relative humidity (rh) greatly affected nymph emergence and survivorship up to the 2nd instar, reaching the maximum value (approximately 90%) with rh of > 80%. at 60% rh, 60% of the nymphs emerged and survived, while with 0% rh only approximately 15% of eggs hatched, and most nymphs died. emerged nymphs from egg masses placed in plastic boxes with a gradient of humidity remained on egg shells for ... | 2006 | 17273705 |
| vibrational communication along plants by the stink bugs nezara viridula and murgantia histrionica. | the velocity and spectral characteristics of vibrational signals of nezara viridula (l.) and murgantia histrionica (hahn) (heteroptera: pentatomidae) were analyzed as the signals were transmitted through different plants. the velocity parameter of the body vibrations ranges from 0.1 to 1 mm/s. according to the mechanical properties of different substrates, the signal is attenuated or amplified during transmission from the insect's body to the substrate. attenuation of up to 20 db occurs during t ... | 2007 | 17306471 |
| methyl 2,4,6-decatrienoates attract stink bugs and tachinid parasitoids. | halyomorpha halys (stål) (pentatomidae), called the brown marmorated stink bug (bmsb), is a newly invasive species in the eastern usa that is rapidly spreading from the original point of establishment in allentown, pa. in its native range, the bmsb is reportedly attracted to methyl (e,e,z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern asia, plautia stali scott. in north america, thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatri ... | 2007 | 17334917 |
| the egg parasitoid trissolcus basalis uses n-nonadecane, a cuticular hydrocarbon from its stink bug host nezara viridula, to discriminate between female and male hosts. | contact kairomones from adult southern green stink bugs, nezara viridula (l.) (heteroptera: pentatomidae) that elicit foraging behavior of the egg parasitoid trissolcus basalis (wollaston) were investigated in laboratory experiments. chemical residues from tarsi and scutella of n. viridula induced foraging by gravid female t. basalis. residues from body parts of female n. viridula elicited stronger responses than those from the corresponding body parts of males. deproteinized tarsi still elicite ... | 2007 | 17508134 |
| inter- and intraspecific variation in defensive compounds produced by five neotropical stink bug species (hemiptera: pentatomidae). | the differences in composition of defensive secretions between nymphs, adult males and adult females of chinavia impicticornis (=acrosternum impicticorne), chinavia ubica (=acrosternum ubicum), euschistus heros, dichelops melacanthus and piezodorus guildinii (hemiptera, pentatomidae) were analysed within and between species using compositional log-ratio statistics and canonical variates analysis. differences in composition between nymphs, males and females were found for all species, as well as ... | 2007 | 17574569 |
| extrafloral nectar in an apple ecosystem to enhance biological control. | a common goal of conservation biological control is to enhance biodiversity and increase abundance and effectiveness of predators and parasitoids. although many studies report an increase in abundance of natural enemies, it has been difficult to document increases in rates of biological control. to enhance parasitism of the tufted apple bud moth, platynota idaeusalis (walker) (lepidoptera: tortricidae), alternate food was provided by interplanting peaches bearing extrafloral nectaries into apple ... | 2010 | 21061965 |
| field evaluation of reduced insecticide spray programs for managing plum curculio, conotrachelus nenuphar (coleoptera: curculionidae), in alabama peaches. | plum curculio (pc), conotrachelus nenuphar (herbst.), is an important pest of peaches in the southeastern united states. commercially acceptable control of this insect is typically achieved by weekly or biweekly application of broad-spectrum conventional insecticides, resulting in 6-12 sprays per season. experiments were conducted in a peach orchard in alabama during 2007-2009 to compare the conventional calendar-based insecticide spray program involving weekly applications of phosmet with three ... | 2011 | 21268230 |
| evaluating lepidopteran defoliation resistance in soybean breeding lines containing the stink bug (hemiptera: pentatomidae) resistance iac-100 cultivar in their pedigrees. | sixty-five soybean, glycine max (l.) merrill, breeding lines containing 'iac-100' in their pedigrees were evaluated for their resistance to lepidopteran defoliation in replicated field trials during 2001-2005. three soybean cultivars, iac-100 (with resistance to stink bug [hemiptera: pentatomidael feeding), 'dillon', and 'hutcheson', also were included in the evaluations. the percentage defoliation among these 68 entries ranged from 4.3 to 28.3% in 2001 and from 35.0 to 99.0% in 2002. lepidopter ... | 2007 | 17598562 |
| long-term patterns and feeding sites of southern green stink bug (hemiptera: pentatomidae) in hawaii macadamia orchards, and sampling for management decisions. | southern green stink bug (nezara viridula, hemiptera: pentatomidae) is a pest of macadamia nuts, causing pitting to kernels by feeding. in spite of its pest status, many aspects of the ecology of this insect in macadamia orchards are poorly understood. this study analyzes long-term n. viridula damage to macadamia nuts and investigates the extent to which damage to nuts occurs in the tree canopy, prior to nut-drop. we show that there are distinct seasonal peaks in damage detected after harvest an ... | 2007 | 17997869 |
| relationship between external stink bug (hemiptera: pentatomidae) boll-feeding symptoms and internal boll damage with respect to cotton lint gin-out and fiber quality. | cotton, gossypium hirsutum l., bolls from 17 field locations in northeastern north carolina and southeastern virginia, having 20% or greater internal boll damage, were studied to determine the relationship between external feeding symptoms and internal damage caused by stink bug (hemiptera: pentatomidae) feeding. in 2006 and 2007, two cohorts of 100 bolls each were sampled at all field locations. the first cohort was removed as bolls reached approximately quarter size in diameter (2.4 cm). exter ... | 2010 | 21309249 |
| characterization of an obligate intracellular bacterium in the midgut epithelium of the bulrush bug chilacis typhae (heteroptera, lygaeidae, artheneinae). | many members of the suborder heteroptera have symbiotic bacteria, which are usually found extracellularly in specific sacs or tubular outgrowths of the midgut or intracellularly in mycetomes. in this study, we describe the second molecular characterization of a symbiotic bacterium in a monophagous, seed-sucking stink bug of the family lygaeidae (sensu stricto). chilacis typhae possesses at the end of the first section of the midgut a structure which is composed of circularly arranged, strongly e ... | 2011 | 21378044 |
| response of the egg parasitoids trissolcus basalis and telenomus podisi to compounds from defensive secretions of stink bugs. | we tested the hypotheses that host-searching behavior of the egg parasitoids telenomus podisi and trissolcus basalis may be differentially influenced by the different blends of volatiles released from the metathoracic glands of adult stink bug host species. we further studied whether such a differential response is due to different individual components of these glands and whether these responses reflect host preferences. y-tube olfactometer bioassays were carried out with crude extracts of meta ... | 2009 | 19127384 |
| symbiont of the stink bug plautia stali synthesizes rough-type lipopolysaccharide. | the structures and biosynthesis of lipopolysaccharide (lps), a major component of the outer membrane of gram-negative bacteria, have been studied extensively in cultured bacteria such as escherichia coli. in contrast, little is known about the structures and biosynthesis of the lps of unculturable bacteria, including insect symbionts, many of which are gram-negative bacteria. a brown-winged green bug, plautia stali, is known to harbor a single species of gamma-proteobacterium in the posterior mi ... | 2011 | 21470838 |
| evaluating aggregation membership and copulatory success in the stink bug, euschistus conspersus, using field and laboratory experiments. | abstract the aggregation and mating behavior of the stink bug, euschistus conspersus uhler (hemiptera: pentatomidae) was investigated in a series of field and laboratory experiments. marking of e. conspersus mating in aggregations in the field demonstrated that both sexes mate multiple times within aggregations on successive nights and with different partners, although ≈ 20% of the individuals of both sexes returned to aggregations but did not mate. further analysis of mating patterns in caged a ... | 2011 | 21521144 |
| duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (heteroptera: pentatomidae). | laboratory studies were conducted to compare duration of feeding and superficial and in-depth damage to soybean (glycine max) seeds by the southern green stink bug, nezara viridula (l.), the neotropical brown stink bug, euschistus heros (f.), the red-banded stink bug, piezodorus guildinii (westwood), and the green-belly stink bug, dichelops melacanthus (dallas). results indicated that feeding time was significantly longer for n. viridula (≈ 133 min) compared to e. heros and d. melacanthus (≈ 70 ... | 2011 | 21584400 |
| fine structure and chemical analysis of the metathoracic scent gland secretion in graphosoma lineatum (linnaeus, 1758) (heteroptera, pentatomidae). | morphology and ultrastructure of metathoracic scent glands (mtgs) of graphosoma lineatum (heteroptera, pentatomidae) were studied by scanning electron microscopy (sem) and transmission electron microscopy (tem). extracts of the volatile fraction of the mtg secretion from males and females were subjected to initial analysis. one pair of the mtg is composed of a reservoir and a pair of lateral glands connected to the reservoir with a duct. mtgs are open in between the meso- and metacoxae, on evapo ... | 2009 | 19200924 |
| temporal analysis of cotton boll symptoms resulting from southern green stink bug feeding and transmission of a bacterial pathogen. | the southern green stink bug, nezara viridula (l.), is a significant pest of cotton, gossypium hirsutum l., and is becoming an increasing challenge due to the decrease in use of broad-spectrum insecticides on the crop. the southern green stink bug can vector an opportunistic pantoea agglomerans strain (designated sc 1-r) into cotton bolls, resulting in infection. the appearance of stink bug damage varies, and pest managers cannot readily identify its source. this research reports a systematic de ... | 2009 | 19253615 |
| the public world of insect vibrational communication. | food webs involving plants, herbivorous insects and their predators account for 75% of terrestrial biodiversity (price 2002). within the abundant arthropod community on plants, myriad ecological and social interactions depend on the perception and production of plant-borne mechanical vibrations (hill 2008). study of ecological relationships has shown, for example, that termites monitor the vibrations produced by competing colonies in the same tree trunk (evans et al. 2009), that stink bugs and s ... | 2011 | 21692234 |
| Spatial patterns of aflatoxin levels in relation to ear-feeding insect damage in pre-harvest corn. | Key impediments to increased corn yield and quality in the southeastern US coastal plain region are damage by ear-feeding insects and aflatoxin contamination caused by infection of Aspergillus flavus. Key ear-feeding insects are corn earworm, Helicoverpa zea, fall armyworm, Spodoptera frugiperda, maize weevil, Sitophilus zeamais, and brown stink bug, Euschistus servus. In 2006 and 2007, aflatoxin contamination and insect damage were sampled before harvest in three 0.4-hectare corn fields using a ... | 2011 | 22069748 |
| seasonal abundance, species composition, and population dynamics of stink bugs in production fields of early and late soybean in south arkansas. | from 2003 through 2007, densities of stink bugs were monitored weekly in 297 commercial production fields of early and late soybean, glycine max l. merrill, in southeast and southwest arkansas. the goal of this research was to better understand seasonal abundance, species composition, and population dynamics of pentatomids as a benchmark reference for future management systems. thirty-five percent of all the 25-sweep samples taken in soybean contained at least one stink bug specimen. the average ... | 2009 | 19253641 |
| composition and abundance of stink bugs (heteroptera: pentatomidae) in corn. | the species composition and abundance of stink bugs (heteroptera: pentatomidae) in corn, zea mays l., was determined in this on-farm study in georgia. seven species of phytophagous stink bugs were found on corn with the predominant species being nezara viridula (l.) and euschistus servus (say). all developmental stages of these two pests were found, indicating they were developing on the corn crop. the remaining five species, oebalus pugnax pugnax (f.), euschistus quadrator (rolston), euschistu ... | 2010 | 22182541 |
| parasitism and predation of stink bug (heteroptera: pentatomidae) eggs in georgia corn fields. | nezara viridula l. and euschistus servus (say) are the predominant species of phytophagous stink bugs on corn, zea mays l., in georgia. oebalus pugnax pugnax (f.) occurs in relatively low numbers, and the predatory stink bug podisus maculiventris (say) is commonly found. limited information is available on natural biological control of these four stink bug species in georgia corn fields; therefore, a 6-yr study of parasitism and predation of their eggs was initiated in 2003. naturally occurring ... | 2010 | 22127170 |
| pheromonal cross-attraction in true bugs (heteroptera): attraction of piezodorus hybneri (pentatomidae) to its pheromone versus the pheromone of riptortus pedestris (alydidae). | we investigated the attractiveness of a synthetic form of the pheromone of the soybean stink bug, piezodorus hybneri (gmelin), under field conditions, and compared it with that of (e)-2-hexenyl (e)-2-hexenoate, a pheromone component of a competitor, riptortus pedestris (fabricius). many adult stink bugs were attracted to traps baited with 100 mg of the synthetic pheromone (1: 1: one mixture of ß-sesquiphellandrene, (r)-15-hexadecanolide, and methyl (z)-8-hexadecenoate), but few were attracted t ... | 2010 | 22182564 |
| field biology of edessa rufomarginata (hemiptera: pentatomidae): phenology, behavior, and patterns of host plant use. | pentatomids may cause direct and indirect damage to important crop plants. biological and ecological features of phytophagous stink bugs in natural environments, however, remain poorly documented. here, we provide an ecological account of edessa rufomarginata de geer on caryocar brasiliense (caryocaraceae) in the brazilian savanna. the phenology of e. rufomarginata matched that of its host plant, with immatures developing in the wet season simultaneously with the production of vegetative and re ... | 2010 | 22182556 |
| early-season soybean as a trap crop for stink bugs (heteroptera: pentatomidae) in arkansas' changing system of soybean production. | early-season soybean, glycine max l. merrill, was evaluated in arkansas soybean fields as a trap crop for a complex of stink bug species that included nezara viridula l., acrosternum hilare (say), and euschistus servus (say). early-season soybean production systems (espss) are composed of indeterminate soybean cultivars planted in april. in the first year of a 2-yr study, field-scale trap crops ( approximately 0.5-1.0 ha) of maturity group (mg) iii and iv soybean were planted adjacent to product ... | 2009 | 19389295 |
| seasonal occurrence and impact of halyomorpha halys (hemiptera: pentatomidae) in tree fruit. | halyomorpha halys is an introduced stink bug species from asia that is spreading throughout the mid-atlantic united states. it is native to south korea, japan, and eastern china, where it is an occasional pest of tree fruit, including apple and pear. cage experiments with adults placed on apple and peach during critical plant growth stages demonstrate that it can cause damage to developing fruit during mid- and late season growth periods and that feeding occurs on all regions of the fruit. feedi ... | 2009 | 19610429 |
| insecticide susceptibility of euschistus heros (heteroptera: pentatomidae) in brazil. | euschistus heros (f.) (heteroptera: pentatomidae) is the most prevalent stink bug pest in brazil, and populations can be difficult to manage using organophosphates or endosulfan. because e. heros is difficult to rear in the laboratory, no baseline insecticide susceptibility data have been published. therefore, we conducted dose-mortality studies using field-collected insects, and, using the results from the dose-mortality studies, we surveyed susceptibility to acephate, methamidophos, and endosu ... | 2009 | 19610440 |
| insecticidal management and movement of the brown stink bug, euschistus servus, in corn. | in eastern north carolina, some brown stink bugs, euschistus servus (say) (hemiptera: pentatomidae) are suspected to pass the f(1) generation in wheat (triticum aestivum l.) (poales: poaceae) before moving into corn (zea mays l.) (poales: poaceae). these pests can injure corn ears as they develop. to test their effectiveness as a management tactic, pyrethroids were aerially applied to field corn in two experiments, one with 0.77 ha plots and another with 85 ha plots. euschistus servus population ... | 2011 | 22950984 |
| nezara viridula (hemiptera: pentatomidae) feeding patterns in macadamia nut in hawaii: nut maturity and cultivar effects. | nezara viridula l. (hemiptera: pentatomidae) is a serious pest of macadamia nuts, macadamia integrifolia, in hawaii. using ruthenium red dye to stain stink bug feeding probes, feeding activity was determined for nuts of various maturity levels harvested from the tree and off the ground throughout the growing season in five commercial cultivars. damage occurred in the tree and on the ground during all nut growth stages. damage on the ground was often higher than in the tree. cultivar 246 was more ... | 2009 | 19689896 |