Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| two pests overlap: drosophila suzukii (diptera: drosophilidae) use of fruit exposed to halyomorpha halys (hemiptera: pentatomidae). | drosophila suzukii (matsumura) (diptera: drosophilidae) and brown marmorated stink bug, halyomorpha halys (stål) (hemiptera: pentatomidae), are global economic pests that may co-occur on small fruits. we investigated whether fruit recently exposed to h. halys affected subsequent host use by d. suzukii. laboratory no-choice and choice tests presented d. suzukii with h. halys-fed and unfed raspberries and blueberries immediately or 3 d after h. halys feeding. resulting d. suzukii eggs, or larvae a ... | 0 | 28575326 |
| seasonal abundance and phenology of halyomorpha halys (hemiptera: pentatomidae) on different pepper cultivars in the mid-atlantic (united states). | the brown marmorated stink bug, halyomorpha halys (stål), is an invasive stink bug (hemiptera: pentatomidae) introduced into the united states in the mid-1990s. since its initial establishment, it has spread throughout the east coast as far south as georgia, and as far north as new hampshire. while information is available regarding h. halys behavior and life history in some crops, relatively little information is available for vegetables such as peppers. key questions include understanding when ... | 0 | 28031472 |
| frugivory by brown marmorated stink bug (hemiptera: pentatomidae) alters blueberry fruit chemistry and preference by conspecifics. | the brown marmorated stink bug, halyomorpha halys (stål), is an invasive pest from asia that feeds on many agricultural crops in the united states, including blueberries. yet, the effects of h. halys feeding on fruit chemistry and induced resistance to insects remain unknown. here we hypothesized that frugivory by h. halys changes fruit chemical composition, which in turn affects insect feeding behavior. in field experiments, blueberry fruit was either mechanically injured or injured by 0 (contr ... | 0 | 27550164 |
| seasonal abundance, host suitability, and feeding injury of the brown marmorated stink bug, halyomorpha halys (heteroptera: penatomidae), in selected vegetables. | the invasive brown marmorated stink bug,halyomorpha halys(stål) (heteroptera: penatomidae), is a major pest of agricultural crops in the mid-atlantic states. here we report the seasonal abundance, host preference, and injury potential ofh. halyson tomato, bell pepper, green bean, sweet corn, eggplant, and okra in a small-scale, diversified vegetable farm setting. life-stage densities, feeding injury, and crop phenology were monitored throughout the growing season in each crop. populations consis ... | 0 | 27034113 |
| host plant use by the invasive halyomorpha halys (stål) on woody ornamental trees and shrubs. | the brown marmorated stink bug, halyomorpha halys (stål) (hemiptera: pentatomidae) is an invasive plant-feeding insect native to eastern asia. this herbivore is highly polyphagous, feeding on and damaging diverse plants, including field crops, vegetables, tree fruits, and ornamentals. woody ornamental plants provide early- and late-season resources for adults emerging from and returning to overwintering sites, as well as feeding and breeding sites for h. halys throughout the growing season. in t ... | 0 | 26906399 |
| characterizing damage of brown marmorated stink bug (hemiptera: pentatomidae) in blueberries. | brown marmorated stink bug, halyomorpha halys (stål) (hemiptera: pentatomidae), is a severe economic pest of growing importance in the united states, canada, and europe. while feeding damage from h. halys has been characterized in tree fruit, vegetables, and agronomic crops, less is known about the impacts of stink bugs on small fruits such as blueberries. in this study, we examined h. halys feeding on two representative early and late ripening blueberry cultivars in oregon and new jersey. this ... | 0 | 26470241 |
| sunflower as a potential trap crop of halyomorpha halys (hemiptera: pentatomidae) in pepper fields. | the brown marmorated stink bug, halyomorpha halys (stål), feeds on a variety of fruits and vegetables, and is an economically important invasive hemipteran pest. trap cropping of h. halys was examined at the pennsylvania state university southeast agriculture research and extension center (searec) in lancaster co., pa, from 2012 to 2013, with sunflowers used as a trap crop to protect bell pepper. h. halys were observed frequently on sunflowers planted surrounding the pepper field, and in both ye ... | 0 | 26331305 |
| attraction of the invasive halyomorpha halys (hemiptera: pentatomidae) to traps baited with semiochemical stimuli across the united states. | a recent identification of the two-component aggregation pheromone of the invasive stink bug species, halyomorpha halys (stål), in association with a synergist, has greatly improved the ability to accurately monitor the seasonal abundance and distribution of this destructive pest. we evaluated the attraction of h. halys to black pyramid traps baited with lures containing the pheromone alone, the synergist methyl (2e,4e,6z)-decatrienoate (mdt) alone, and the two lures in combination. traps were d ... | 0 | 26313981 |
| aflatoxin contamination detected in nutrient and anti-oxidant rich edible stink bug stored in recycled grain containers. | recently, there has been multi-agency promotion of entomophagy as an environmentally-friendly source of food for the ever increasing human population especially in the developing countries. however, food quality and safety concerns must first be addressed in this context. we addressed these concerns in the present study using the edible stink bug encosternum delegorguei, which is widely consumed in southern africa. we analysed for mycotoxins, and health beneficials including antioxidants, amino ... | 0 | 26731419 |
| n-tridecane and trans-2-heptenal in scent gland of the rice stink bug oebalus pugnax (f.). | the scent-gland secretion of the rice stink bug oebalus pugnax (f.) is composed of a liquid two-phase system. the saturated hydrocarbon n-tridecane accounts for 60 percent of the secretion. in the other phase, the major organoleptic compound is the trans form of 2-heptenal. | 1960 | 17739573 |
| sexual activity and longevity of the southern green stink bug, nezara viridula. | 1969 | 5374162 | |
| volatile aldehydes in the odoriferous secretion of the stink bug libyaspis angolensis. | 1969 | 5349376 | |
| 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 |
| synthesis and pheromonal activity of 6,10,13-trimethyl-1-tetradecanol for predatory stink bug,stiretrus anchorago (heteroptera: pentatomidae). | racemic 6,10,13-trimethyl-1-tetradecanol has been synthesized. successive elaboration of the molecule using 5-methyl-2-hexanone as the carbon-terminal fragment gave the desired alcohol in a 4% overall yield over 13 steps. neglecting stereochemistry, the product was shown to be identical to the alcohol previously identified from the sternal glands of malestiretrus anchorago. it attracts both adult sexes and larvae of this insect in the field, confirming its postulated identity as an aggregation p ... | 1989 | 24272176 |
| food consumption and diet composition of the web-building spider agelena limbata in two habitats. | prey capture rate, food consumption, and diet composition of all developmental stages of the funnelweb spider agelena limbata were estimated in woody and open habitats by a sight-count method. prey availability was evaluated on the basis of two indices, i.e. the ratios of daily food consumption to dry weight of predator and to daily standard metabolic rate. these indices varied seasonally and between instars in this spider. comparison of these indices between arthropod predators suggests that a. ... | 1991 | 28313151 |
| 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 |
| simple synthesis of a diastereomeric mixture of 2-(3',4'-epoxy-4'-methylcyclohexyl)-6-methyl-2,5-heptadiene, the pheromone of the green stink bug. | 1992 | 27280842 | |
| dorsal abdominal glands in nymphs of southern green stink bug,nezara viridula (l.) (heteroptera: pentatomidae): chemistry of secretions of five instars and role of (e)-4-oxo-2-decenal, compound specific to first instars. | we investigated the exocrine secretions from the five nymphal instars in the southern green stink bug,nezara viridula, by analyzing separately the contents of the three dorsal abdominal reservoirs. all dags 1 produced a mixture of five alkanes with 12, 13, 14, 15, and 16 carbons. no differences were found between dags 2 and dags 3, for the five instars: the glands of first instars produce the same alkanes as dags 1,n-tridecane, traces of (e)-2-decenal, and a specific compound: (e)-4-oxo-2-decena ... | 1994 | 24242802 |
| identification of male-specific volatiles from nearctic and neotropical stink bugs (heteroptera: pentatomidae). | males of the central american stink bug species,euschistus obscurus, produce an attractant pheromone composed of a blend of compounds characteristic of north americaneuschistus spp. and the south american soybean pest,e. heros. the range ofe. obscurus extends into the southern united states, the species is easy to rear, and males produce an exceptionally large quantity of pheromone (>0.5µg/day/male). these factors madee. obscurus useful for characterizing the novel pheromone components ofe. hero ... | 1994 | 24242307 |
| attractant pheromone for nearctic stink bug,euschistus obscurus (heteroptera: pentatomidae): insight into a neotropical relative. | volatiles fromeuschistus obscurus males were found to be attractive to conspecific females in bioassays. a new type of olfactometer assembled from commercially available glassware was used to bioassay aeration extracts of the nearctic stink bug,e. obscurus. fractionated extracts suggest that pheromonal activity is associated with late-eluting, male-specific compounds. research one. obscurus offered a means to indirectly study the pheromone of the neotropical pest species,e. heros, without import ... | 1994 | 24242306 |
| behavioral correlates for minor volatile compounds from stink bugs (heteroptera: pentatomidae). | many terrestrial heteroptera have small, but functional, dorsal abdominal glands as adults. the chemistry, and associated intra- and inter-specific behavior, for dorsal abdominal gland secretions from 10 species representing four genera of pentatomidae was investigated. eighteen volatile compounds were identified in species-specific blends from the dorsal abdominal gland secretions ofeuschistus, acrosternum, andeurydema adults, including aliphatic, aromatic, and terpenoid constituents. evidence ... | 1995 | 24233895 |
| primary structure of a novel neuropeptide isolated from the corpora cardiaca of periodical cicadas having adipokinetic and hypertrehalosemic activities. | a new neuropeptide hormone was isolated from the corpora cardiaca of the periodical cicadas, magicicada species. primary structure of the peptide as determined by a combination of automated edman degradation after enzymatic deblocking with pyroglutamate aminopeptidase and mass spectrometry is: pglu-val-asn-phe-ser-pro-ser-trp-gly-asn-nh2. synthetic peptide assayed in the green stink bug nezara viridula caused a 112% increase in hemolymph lipids at a dose of 0.625 pmol, and a 67% increase in hemo ... | 1995 | 7550248 |
| testing the "new associations" biological control concept with a tachinid parasitoid (euclytia flava). | males of the spined soldier bug,podisus maculiventris (heteroptera: pentatomidae), produce an attractant pheromone that is exploited as a host-finding kairomone by a complex of parasitic species. the capability to catch hundreds of a generalist tachinid fly parasitoid,euclytia flava, alive in traps baited with the pheromone ofp. maculiventris provided an opportunity to test the premise of the "new associations" biological control concept. the hypothesis that host species newly associated with a ... | 1995 | 24234417 |
| 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 |
| 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 |
| 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 |
| analysis of odour and taste problems in high-density polyethene. | the compounds that cause off-flavours in plastics, have been recognized mainly as carbonyl compounds (aldehydes, ketones and esters). they occur in low concentrations, and due to their low-threshold odour concentrations, their typical odours were identified. most of these off-flavour compounds are volatile. chemical analysis of smelling compounds requires a very sensitive method with a high-resolution capability. the analysis of volatile organic compounds (vocs) in high density polyethene (hd-pe ... | 1997 | 9463901 |
| synthesis of both enantiomers of 15-hexadecanolide, a sex pheromone component of the stink bug, piezodorus hybneri. | both enantiomers of 15-hexadecanolide, a sex pheromone component of the stink bug (piezodorus hybneri), were synthesized by using the yamaguchi or mitsunobu macrolactonization reaction of (r)-15-hydroxyhexadecanoic acid prepared from ethyl (r)-β-hydroxybutyrate in 5 steps. | 1998 | 27388652 |
| photoreception in entrainment of rhythms and photoperiodic regulation of diapause in a hemipteran, graphosoma lineatum. | the role of compound eyes in photoperiodic regulation of diapause and entrainment of circadian rhythms was studied in a hemipteran, graphosoma lineatum. bilateral removal of compound eyes resulted in the loss of locomotor rhythmicity under both 24-h light cycle and constant darkness. the arrhythmicity was associated with the loss of photoperiodic regulation of diapause. females with removed compound eyes had similar incidence of oviposition under diapause preventing long-day photoperiod (light:d ... | 1998 | 9554577 |
| 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 |
| 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 |
| 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 |
| green stink bug nezara viridula detects differences in amplitude between courtship song vibrations at stem and petiolus. | green stink bug nezara viridula courtship songs are transmitted through plants as substrate vibrations. the amplitude of the vibrations is different at different distances from the source of vibration and at different locations on the plant. amplitudes of the local vibration were measured on stem and petioli of the bean plant (phaseolus vulgaris) with a laser-doppler vibrometer. differences of the amplitudes of vibration between adjacent points around the nodes were large enough to release diffe ... | 2000 | 27757610 |
| green stink bug nezara viridula detects differences in amplitude between courtship song vibrations at stem and petiolus. | green stink bug nezara viridula courtship songs are transmitted through plants as substrate vibrations. the amplitude of the vibrations is different at different distances from the source of vibration and at different locations on the plant. amplitudes of the local vibration were measured on stem and petioli of the bean plant (phaseolus vulgaris) with a laser-doppler vibrometer. differences of the amplitudes of vibration between adjacent points around the nodes were large enough to release diffe ... | 2000 | 10653188 |
| green stink bug nezara viridula detects differences in amplitude between courtship song vibrations at stem and petiolus. | green stink bug nezara viridula courtship songs are transmitted through plants as substrate vibrations. the amplitude of the vibrations is different at different distances from the source of vibration and at different locations on the plant. amplitudes of the local vibration were measured on stem and petioli of the bean plant (phaseolus vulgaris) with a laser-doppler vibrometer. differences of the amplitudes of vibration between adjacent points around the nodes were large enough to release diffe ... | 2000 | 28176119 |
| new syntheses of the rice moth and stink bug pheromones by employing (2r, 6s)-7-acetoxy-2,6-dimethyl-1-heptanol as a building block. | (2r, 6r, 10r)-6,10,14-trimethyl-2-pentadecanol, the female pheromone of the rice moth (corcyra cephalonica), methyl (2r, 6r, 10r)-2,6,10-trimethyltridecanoate, the male pheromone of the stink bug (euschistus heros) were synthesized by employing (2r, 6s)-7-acetoxy-2,6-dimethyl-1-heptanol as the common chiral building block. | 2000 | 10993161 |
| vibratory songs of hybrids from brazilian and slovenian populations of the green stink bug nezara viridula. | males and females of the green stink bug nezara viridula produce species and sex specific vibrational signals. the songs of bugs from geographically isolated population differ in their temporal characteristics. hybrids were produced between the bugs from brazilian and slovenian populations in order to examine the levels of genetic inheritance of their vibratory songs. hybrid males and females produced songs which are distinctly different from parental songs and these differences can be attributa ... | 2000 | 10653190 |
| temporal and spectral properties of the songs of the southern green stink bug nezara viridula (l.) from slovenia. | substrate born songs of the southern green stinkbug nezara viridula (l.) from slovenia were recorded and analysed. the male calling song is composed of narrow-band regularly repeated single pulses and of broad-band frequency modulated pulses grouped into pulse trains. the female calling song is characterised by broad-band pulsed and narrow-band non-pulsed pulse trains. a frequency modulated pre-pulse precedes the narrow-band pulse train. a frequency-modulated post-pulse usually follows the pulse ... | 2000 | 10653180 |
| vibratory songs of hybrids from brazilian and slovenian populations of the green stink bug nezara viridula. | males and females of the green stink bug nezara viridula produce species and sex specific vibrational signals. the songs of bugs from geographically isolated population differ in their temporal characteristics. hybrids were produced between the bugs from brazilian and slovenian populations in order to examine the levels of genetic inheritance of their vibratory songs. hybrid males and females produced songs which are distinctly different from parental songs and these differences can be attributa ... | 2000 | 28176121 |
| temporal and spectral properties of the songs of the southern green stink bug nezara viridula (l.) from slovenia. | substrate born songs of the southern green stinkbug nezara viridula (l.) from slovenia were recorded and analysed. the male calling song is composed of narrow-band regularly repeated single pulses and of broad-band frequency modulated pulses grouped into pulse trains. the female calling song is characterised by broad-band pulsed and narrow-band non-pulsed pulse trains. a frequency modulated pre-pulse precedes the narrow-band pulse train. a frequency-modulated post-pulse usually follows the pulse ... | 2000 | 28176111 |
| identification and synthesis of a male-produced sex pheromone from the stink bug chlorochroa sayi. | the reproductive behavior of the stink bug chlorochroa sayi was studied in the laboratory. there was a sexual maturation period of about 10 days before bugs began mating. sexually mature adult bugs engaged in courtship consisting of antennation and head-butting of the female by the male, before the female adopted a receptive posture and copulation occurred. both sexes mated multiple times during their life-spans, with the mean duration of copulations of virgin bugs (42.3 +/- 19.6 min) and experi ... | 2001 | 11504022 |
| male-produced sex attractant pheromone of the green stink bug, acrosternum hilare (say). | sexually mature virgin adult males of the green stink bug, acrosternum hilare attracted sexually mature virgin adult females in laboratory bioassays using a vertical y-tube. there was no indication that males attracted other males, or that females attracted either sex. these results suggested that a. hilare males produce a sex pheromone. extracts of odors collected from sexually mature males contained compounds that were not present in extracts from females or sexually immature males. (4s)-cis-( ... | 2001 | 11545373 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| skin lesions caused by stink bugs (insecta: heteroptera: pentatomidae): first report of dermatological injuries in humans. | 2002 | 11929062 | |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| semiochemicals from the predatory stink bug eocanthecona furcellata (wolff): components of metathoracic gland, dorsal abdominal gland, and sternal gland secretions. | volatile compounds from the metathoracic glands (mtg), dorsal abdominal glands (dag), and sternal setae of the generalist predatory stink bug eocanthecona furcellata (wolff) were studied by gas chromatography-mass spectrometry. mtgs of both male and female bugs contained (e)-2-decenal as the major component, with lesser amounts of (e, e)-2,4-decadienal, (e, z)-2,4-decadienal, and (e)-2,9-decadienal. the relative amount of (e)-2,9-decadienal in the mtgs of female bugs was higher than in male bugs ... | 2003 | 14584678 |
| prevalence of a trypanosomatid in the southern green stink bug, nezara viridula. | the southern green stink bug, nezara viridula (l.), and certain of its host plants were examined to determine the prevalence and biological characteristics of an intestinal trypanosomatid. promastigotes with short (< or = 17.5 microm excluding flagellum) and long forms (> or = 25.0 microm) usually infected < 50% of the bugs before august and > 50% (maximum 95%) during august-october, but prevalence was not host-density dependent. the flagellate was detected in adults and in all nymphal instars, ... | 2003 | 11140453 |
| oosorption in the stink bug, plautia crossota stali: induction and vitellogenin dynamics. | oosorption, resorption of developing oocytes in the ovary, in p. c. stali is characterized by changes in appearance of oocytes from opaque greyish green or orange to transparent, degeneration of yolk granules and disappearance of oocyte contents. starvation and virginity were indicated to be factors that induce oosorption. sds page/western blotting analysis using anti-vitellogenin antiserum detected two major and many minor bands in haemolymph samples. egg extracts showed a more complicated set ... | 2003 | 12770003 |
| injury to preflowering and flowering cotton by brown stink bug and southern green stink bug. | the impact of brown stink bug, euschistus servus (say), and southern green stink bug, nezara viridula (l.), injury was evaluated on preflowering and flowering cotton, gossypium hirsutum l., plants in no-choice tests. vegetative stage cotton seedlings and reproductive structures, including flower buds (square) and bolls, were infested with adults and/or nymphs of both species. there were no significant differences in height, height to node ratio, square retention, and flower initiation for cotton ... | 2004 | 15279273 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| effect of rearing conditions on production of sternal gland secretion, and identification of minor components in the sternal gland secretion of the predatory stink bug eocanthecona furcellata. | production of the male specific compound, 6,10,13-trimethyltetradecyl isovalerate by the predatory stink bug eocanthecona furcellata (wolff) was dramatically affected by rearing conditions. male bugs kept isolated after eclosion produced an average of 1,948 ng of 6,10,13-trimethyltetradecyl isovalerate per bug, whereas male bugs reared in groups of 5-8 bugs produced an average of only 4 ng of 6,10,13-trimethyltetradecyl isovalerate per bug. same-sex or mixed-sex pairs of bugs produced less than ... | 2005 | 15839477 |
| sex attractant pheromone from the neotropical red-shouldered stink bug, thyanta perditor (f.). | olfactometer bioassays showed that odors from mature thyanta perditor males attracted females but not males. furthermore, odors from females did not attract either sex, indicating that like other phytophagous pentatomid bugs, the males produce a sex pheromone. attraction appeared to peak in late afternoon to evening. the headspace volatiles collected from male and female t. perditor were analyzed by gc-ms and hplc. a male-specific compound, methyl (2e,4z,6z)-decatrienoate (2e,4z,6z-10:coome), wa ... | 2005 | 16222780 |
| sex attractant pheromone from the rice stalk stink bug, tibraca limbativentris stal. | the male-produced sex pheromone from the brazilian rice stalk stink bug tibraca limbativentris is reported. olfactometer bioassays with sexually mature males and females showed that males attracted females, which suggests that males release a sex pheromone. males were not attracted to either sex, nor were females attractive to conspecific females. attraction of the females to males was highest at night. the headspace volatiles collected from male and female bugs were analyzed by gas chromatograp ... | 2006 | 17089181 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| assessing stink bug resistance in soybean breeding lines containing genes from germplasm iac-100. | sixty-five soybean, glycine max (l.) merr., breeding lines containing the stink bug resistant 'iac-100' in their pedigrees were evaluated for their resistance to stink bug, primarily southern green stink bug, nezara viridula l., feeding in replicated field trials from 2001 to 2005. plots were sampled throughout the season for stink bug abundance, and, at harvest, seed samples were rated for stink bug-induced kernel damage. individual seeds were categorized as having none, light, moderate, or hea ... | 2007 | 17849902 |
| influence of nezara viridula feeding on cotton yield, fiber quality, and seed germination. | the influence of southern green stink bug, nezara viridula (l.), adults (males and females) and fourth to fifth instars on cotton, gossypium hirsutum l., boll abscission, seedcotton yield, fiber quality, and seed viability was evaluated in field studies conducted during 2004 and 2005. cotton bolls representing several age classes ranging from 0-600 heat units were individually infested with a specific gender or life stage of southern green stink bug. adults and nymphs induced abscission of bolls ... | 2007 | 17972633 |