| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| evaluation of hydrophobic and hydrophilic kaolin particle films for peach crop, arthropod and disease management. | hydrophobic and/or hydrophilic kaolin particle film treatments to peach (prunus persica (l) batsch) trees were evaluated for crop and pest management capabilities in six studies from 1997 to 2000. unsprayed control and standard treatments, the latter consisting of a commercial pesticide program, were included for comparison. treatments in initial studies were applied via handgun, which resulted in a uniform and heavy deposit of kaolin after the first application. in contrast, treatments in subse ... | 2005 | 15593071 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |
| 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 |
| 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 |
| effects of vegetated field borders on arthropods in cotton fields in eastern north carolina. | the influence, if any, of 5m wide, feral, herbaceous field borders on pest and beneficial arthropods in commercial cotton, gossypium hirsutum (l.) (malvales: malvaceae), fields was measured through a variety of sampling techniques over three years. in each year, 5 fields with managed, feral vegetation borders and five fields without such borders were examined. sampling was stratified from the field border or edge in each field in an attempt to elucidate any edge effects that might have occurred. ... | 2008 | 20345293 |
| 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 |
| spatial and temporal patterns of stink bugs (hemiptera: pentatomidae) in wheat. | a 2-yr study was conducted in south carolina wheat fields to describe spatial and temporal dynamics of stink bugs sampled with sweep nets. in 2008, the main phytophagous species were euschistus servus (say) (35.8, 36.7%), oebalus pugnax (f.) (35.0, 6.0%), nezara viridula l., (15.2, 46.3%), and thyanta custator (f.) (14.0, 10.5%) for adults and nymphs, respectively. in 2009, the main phytophagous species were o. pugnax (39.8, 37.8%), e. servus (38.4, 30.0%), n. viridula (14.6, 29.5%), and t. cust ... | 2010 | 20550810 |
| spatial dynamics of stink bugs (hemiptera: pentatomidae) and associated boll injury in southeastern cotton fields. | grid sampling (one sample per 0.40 ha) in 12 cotton (gossypium hirsutum l.) fields for stink bugs and boll injury caused by stink bug feeding was conducted in 2007 and 2008 in south carolina and georgia. the main species collected using the beat cloth method were the green stink bug, acrosternum hilare (say) (69%); brown stink bug, euschistus servus (say) (18%); and the southern green stink bug, nezara viridula (l.) (14%), respectively. the inverted distance weighted interpolation method and spa ... | 2010 | 20550811 |
| using microscopy to assess chorion structural integrity and parasitoid oviposition sites on stink bug (hemiptera: pentatomidae) eggs. | previous efficacy studies found that many insecticides used by growers could be having an adverse effect on egg parasitoids (telenomus podisi) developing in the eggs of the brown stink bug (euschistus servus), while unhatched stink bugs experienced lower levels of mortality. one plausible explanation for this was that insecticides might enter parasitized eggs more readily via oviposition wounds. parasitized e. servus eggs, as well as nonparasitized stink bug (acrosternum hilare, e. servus, murga ... | 2010 | 20920377 |
| impact of brown stink bug (heteroptera: pentatomidae) feeding on corn grain yield components and quality. | brown stink bug, euschistus servus (say) (heteroptera: pentatomidae), damage on developing corn, zea mays l., ears was examined in 2005 and 2006 by using eight parameters related to its yield and kernel quality. stink bug infestations were initiated when the corn plants were at tasseling (vt), mid-silking (r1), and blister (r2) stages by using zero, three, and six in 2005 or zero, one, two, and four bugs per ear in 2006, and maintained for 9 d. the percentage of discolored kernels was affected b ... | 2010 | 21309227 |
| efficacy of selected insecticides against eggs of euschistus servus and acrosternum hilare (hemiptera: pentatomidae) and the egg parasitoid telenomus podisi (hymenoptera: scelionidae). | brown stink bug, euschistus servus (say), and green stink bug, acrosternum hilare (say) (hemiptera: pentatomidae), are major agricultural pests. although various insecticides are used to control nymphs and adults, little is known about how they affect eggs. laboratory bioassays and field trials were conducted to determine the efficacy of common field rates of acephate, lamda-cyhalothrin, spinosad, and thiamethoxam on developing e. servus and a. hilare eggs, as well as telenomus podisi ashmead (h ... | 2011 | 21404850 |
| 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 |
| 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 |
| 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 |
| influence of corn on stink bugs (heteroptera: pentatomidae) in subsequent crops. | in southeastern united states farmscapes, corn, zea mays l., is often closely associated with peanut, (arachis hypogaea l.), cotton, (gossypium hirsutum l.), or both. the objective of this 3-yr on-farm study was to examine the influence of corn on stink bugs (heteroptera: pentatomidae), nezara viridula (l.), and euschistus servus (say), in subsequent crops in these farmscapes. adults of both stink bug species entered corn first, and seasonal occurrence of stink bug eggs, nymphs, and adults indic ... | 2011 | 22251727 |
| 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 |
| density and egg parasitism of stink bugs (hemiptera: pentatomidae) in elderberry and dispersal into crops. | chinavia hilaris (say), euschistus servus (say), euschistus tristigmus (say), and thyanta custator custator (f.) (hemiptera: pentatomidae) are serious pests of crops in the southeastern united states but little is known concerning their dispersal from noncrop hosts in woodlands into crops. this 2-yr study was conducted to investigate whether elderberry [sambucus nigra subsp. canadensis (l.) r. bolli] in woodlands serves as a source of stink bugs dispersing into adjacent crops and to examine para ... | 2016 | 27773875 |
| influence of brown stink bug feeding, planting date and sampling time on common smut infection of maize. | phytopathogen infections are frequently influenced by both biotic and abiotic factors in a crop field. the effect of brown stink bug, euschistus servus (hemiptera: pentatomidae), feeding and planting date and sampling time on common smut (ustilago maydis) infection percentage of maize plants was examined in 2005 and 2006, and 2010 and 2011, respectively. brown stink bug adult feeding on maize hybrid "dkc6971" at flowering in 2005 and 2006 did not influence smut infection percentage when examined ... | 2014 | 24963742 |
| control of key pecan insect pests using biorational pesticides. | key pecan insect pests include the black pecan aphid, melanocallis caryaefoliae (davis), pecan weevil, curculio caryae (horn), and stink bugs (hemiptera: pentatomidae). alternative control tactics are needed for management of these pests in organic and conventional systems. our objective was to evaluate the potential utility of several alternative insecticides including three plant extract formulations, eucalyptus extract, citrus extract-8.92%, and citrus extract-19.4%, and two microbial insecti ... | 2013 | 23448039 |
| cotton (gossypium hirsutum l.) boll rotting bacteria vectored by the brown stink bug, euschistus servus (say) (hemiptera: pentatomidae). | to determine the capacity of the brown stink bug (bsb) (euschistus servus) to transmit an infective pantoea agglomerans strain sc 1-r into cotton (gossypium hirsutum) bolls. | 2016 | 27261673 |
| evaluation of corn germplasm lines for multiple ear-colonizing insect and disease resistance. | ear-colonizing insects and diseases that reduce yield and impose health threats by mycotoxin contaminations in the grain, are critical impediments for corn (zea mays l.) production in the southern united states. ten germplasm lines from the germplasm enhancement of maize (gem) program in ames, ia, and raleigh, nc, and 10 lines (derived from gem germplasm) from the texas agricultural experiment station in lubbock, tx, were examined in 2007 and 2008 with local resistant and susceptible controls. f ... | 2012 | 22928329 |
| spatial and temporal dynamics of stink bugs in southeastern farmscapes. | a 3-yr study (2009-2011) was conducted to examine the spatial and temporal dynamics of stink bugs in three commercial farmscapes. study locations were replicated in south carolina and georgia, in an agriculturally diverse region known as the southeastern coastal plain. crops included wheat, triticum aestivum (l.), corn, zea mays (l.), soybean, glycine max (l.), cotton, gossypium hirsutum (l.), and peanut, arachis hypogaea (l.). farmscapes were sampled weekly using whole-plant examinations for co ... | 2015 | 25843577 |
| likelihood of stink bugs colonizing crops: a case study in southeastern farmscapes. | stink bugs, including nezara viridula (l.), euschistus servus (say), and chinavia hilaris (say), are economic pests across agricultural farmscapes where they can colonize closely associated crops. this 4-yr on-farm study was conducted to examine the likelihood of these three stink bug species colonizing crops in corn-cotton, corn-peanut-cotton, and peanut-cotton farmscapes by using odds ratios. corn (zea mays l.), peanut (arachis hypogaea l.), and cotton (gossypium hirsutum l.) served as host pl ... | 2013 | 23726052 |
| use of chromatin remodeling atpases as rnai targets for parental control of western corn rootworm (diabrotica virgifera virgifera) and neotropical brown stink bug (euschistus heros). | rna interference (rnai) is a gene silencing mechanism that is present in animals and plants and is triggered by double stranded rna (dsrna) or small interfering rna (sirna), depending on the organism. in the western corn rootworm (wcr), diabrotica virgifera virgifera leconte (coleoptera: chrysomelidae), rnai can be achieved by feeding rootworms dsrna added to artificial diet or plant tissues transformed to express dsrna. the effect of rnai depends on the targeted gene function and can range from ... | 2016 | 26873291 |
| economic injury level of the neotropical brown stink bug euschistus heros (f.) on cotton plants. | in brazil, the neotropical brown stink bug, euschistus heros (f.) (hemiptera: pentatomidae), commonly disperses from soybeans to cotton fields. the establishment of an economic treatment threshold for this pest on cotton crops is required. infestation levels of adults of e. heros were evaluated on cotton plants at preflowering, early flowering, boll filling, and full maturity by assessing external and internal symptoms of injury on bolls, seed cotton/lint production, and fiber quality parameters ... | 2016 | 27844467 |
| sexual success after stress? imidacloprid-induced hormesis in males of the neotropical stink bug euschistus heros. | environmental stress in newly-emerged adult insects can have dramatic consequences on their life traits (e.g., dispersion, survival and reproduction) as adults. for instance, insects sublethally exposed to environmental stressors (e.g., insecticides) can gain fitness benefits as a result of hormesis (i.e., benefits of low doses of compounds that would be toxic at higher doses). here, we experimentally tested whether sublethal exposure to the insecticide imidacloprid would hormetically affect the ... | 2016 | 27284906 |
| toxicity of piper aduncum (piperaceae) essential oil against euschistus heros (f.) (hemiptera: pentatomidae) and non-effect on egg parasitoids. | plant essential oils have been recognized as significant natural resources for insecticides. herein, we have assessed the toxicity of the essential oil of piper aduncum (piperaceae) against euschistus heros (f.) (hemiptera: pentatomidae), a key soybean pest in neotropical america. in addition, we have assessed its effect on the performance of egg parasitoids. the essential oil was obtained from the leaves of p. aduncum via hydrodistillation. subsequently, bioassays of the concentration response ... | 2016 | 27255767 |
| competition between the phytophagous stink bugs euschistus heros and piezodorus guildinii in soybeans. | the abundance and contribution of the neotropical brown stink bug, euschistus heros (f.), and the redbanded stink bug, piezodorus guildinii (west.), to the composition of insect pests of soybean, glycine max (l.), fields have changed both spatially and temporally in neotropical soybean production areas. therefore, we assessed the competitiveness of each species in direct competition experiments following an additive series. we performed mixed (adult) insect infestations in soybean plants and eva ... | 2016 | 27129408 |
| lyophilized artificial diet for rearing the neotropical euschistus heros (hemiptera: pentatomidae). | an artificial diet to mass-rear euschistus heros (f. 1798) (hemiptera: pentatomidae) was developed in the laboratory. biological studies were conducted under controlled conditions of temperature (25 ± 2 °c), rh: 60 ± 10%, and photoperiod of 14:10 (l:d) h. out of 13 diets tested, 2 diets (d9 and d11) were the most suitable. the artificial diets selected had the same composition (green beans, peanuts, sucrose, water, nipagin, and sorbic acid) except for different antimicrobial agents (d11 has tetr ... | 2016 | 27126964 |
| response of soybean genotypes challenged by a stink bug complex (hemiptera: pentatomidae). | pentatomids (stink bugs) are major pests of soybean, glycine max (l.) merril. these pests reach high levels of infestation, cause severe damage to seeds by feeding, are linked to leaf retention, and are difficult to control. host plant resistance is considered to be a valuable tool in integrated pest management and can assist in reducing the damage caused by stink bugs. this research evaluated the resistance of soybean genotypes in brazil to the stink bug complex, the neotropical brown stink bug ... | 2016 | 26662735 |
| identification and functional characterization of esterases in euschistus heros (hemiptera, pentatomidae) and their relationship with thiamethoxam and lambda-cyhalothrin. | the brown stink bug euschistus heros is the most abundant species of the soybean-sucking bugs, and causes large economic losses. applying different chemical groups of organosynthetic insecticides for its control increases the potential for resistance. esterases are a group of enzymes that play a variety of roles in insects, and some of them are related to the metabolism of xenobiotics. the aim of this study was to analyze the esterase isoenzyme system of this species and investigate its response ... | 2015 | 26400338 |
| biochemical aspects of the soybean response to herbivory injury by the brown stink bug euschistus heros (hemiptera: pentatomidae). | plant defense response is an elaborate biochemical process shown to depend on the plant genetic background and on the biological stressor. this work evaluated the soybean biochemical foliar response to brown stink bug herbivory injury through an analysis of redox metabolism and proteomic 2de profiles of susceptible (brs silvania rr) and resistant (iac-100) varieties. the activity of lipoxygenase-3, guaiacol peroxidase, catalase and ascorbate peroxidase was monitored every 24 h up to 96 h. in the ... | 2014 | 25333272 |
| identification and expression profile of two putative odorant-binding proteins from the neotropical brown stink bug, euschistus heros (fabricius) (hemiptera: pentatomidae). | this work presents the first identification of putative odorant-binding proteins (obps) from a member of the pentatomidae, i.e. the brown stink bug euschistus heros (fabricius), an important pest of soybean in brazil. antennae from both sexes of e. heros adults (12 days old and unmated) were used to construct a cdna library, from which two transcripts encoding putative e. heros obps (eherobps) were identified. the expression levels of eherobp1 and eherobp2 were found to be higher in male antenna ... | 2014 | 27193516 |
| feeding activity, salivary amylase activity, and superficial damage to soybean seed by adult edessa meditabunda (f.) and euschistus heros (f.) (hemiptera: pentatomidae). | greenhouse and laboratory studies were conducted to evaluate feeding activity and superficial damage to soybean seed by the brown-winged stink bug, edessa meditabunda (f.), and the neotropical brown stink bug, euschistus heros (f.). soybean plants (cv. brs 282), at r6 stage of development were used. thirty pairs of each species were used individually for 48 h. two daily observations (9:00 am and 3:00 pm) were taken to record the number of bugs (feeding/resting) on plant parts. harvested seeds im ... | 2012 | 23950088 |
| comparative biology of euschistus heros (f.) (hemiptera: pentatomidae) feeding on cotton and soybean reproductive structures. | the neotropical brown stink bug, euschistus heros (f.), is a phytophagous pentatomid that causes considerable economic losses in soybean crop, but it has been recently reported using cotton as a new host plant. nymphs and adults of e. heros were raised on six different food sources composed of the reproductive structures of cotton and soybean plants: a standard diet (green-bean pods + raw peanuts + privet fruits), soybean seeds, soybean pods, cotton seeds, cotton bolls, and cotton floral buds. t ... | 2013 | 23949855 |
| an invasive pentatomid pest in argentina: neotropical brown stink bug, euschistus heros (f.) (hemiptera: pentatomidae). | this is the first record on the invasion of the neotropical brown stink bug, euschistus heros (f.) in paraná county (latitude 31º 51' 9.6" s, longitude 60º 32' 11.2" w), entre ríos province, argentina. five adults were intercepted in 2009/2010, one in crop residues and four on soybean fields. the expanding range in the distribution of e. heros in the southern hemisphere is believed to be due to the increased commercial trade among countries, increase in the area cultivated with soybean, and the ... | 2013 | 23939278 |
| stink bug species composition and relative abundance of the redbanded stink bug (hemiptera: pentatomidae) in soybean in the upper gulf coast texas. | stink bugs are the primary arthropod soybean pests in the southern united states. historically, important stink bug species damaging soybeans in the southern united states included the southern green stink bug nezara viridula (l.), the green stink bug chinavia hilaris (say), and the brown stink bug euschistus servus (say) (hemiptera: pentatomidae). the redbanded stink bug, piezodorus guildinii (westwood), has recently become an economic pest of soybean in the southern region of the united states ... | 2014 | 25290375 |
| species composition and seasonal abundance of stink bugs (hemiptera: pentatomidae) in louisiana soybean. | in louisiana during the last decade, the redbanded stink bug, piezodorus guildinii (westwood), has become a significant and yield-limiting pest of soybean. the redbanded stink bug was previously reported in the united states in 1892, but was never considered an economically important pest until recently. soybeans representing four maturity groups (mg) iii, iv, v, and vi were sampled weekly from beginning bloom (r1) to physiological maturity (r8) during 2008-2010 at five locations across louisian ... | 2013 | 23905727 |
| stability of spatial distributions of stink bugs, boll injury, and ndvi in cotton. | a 3-yr study was conducted to determine the degree of aggregation of stink bugs and boll injury in cotton, gossypium hirsutum l., and their spatial association with a multispectral vegetation index (normalized difference vegetation index [ndvi]). using the spatial analysis by distance indices analyses, stink bugs were less frequently aggregated (17% for adults and 4% for nymphs) than boll injury (36%). ndvi values were also significantly aggregated within fields in 19 of 48 analyses (40%), with ... | 2016 | 27436843 |
| 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 |
| variable levels of resistance of soybean genotypes on the performance of euschistus heros (hemiptera: pentatomidae). | the neotropical brown stink bug euschistus heros (fabr.) (hemiptera: pentatomidae) is one of the major soybean pests in south america. this species is responsible for high levels of infestation, causes critical damage to seeds, it is associated with leaf retention on plants, and it is extremely difficult to manage. host plant resistance is a notable technique to assist in reducing the stink bug population in soybean crops. the antibiosis resistance of soybean genotypes to e. heros was evaluated ... | 2017 | 29040680 |
| ultrastructural analysis of salivary glands in a phytophagous stink bug revealed the presence of unexpected muscles. | the exceptional abilities of stink bugs (hemiptera: pentatomidae) to colonize a diverse group of plants have been attributed to the feeding behaviors and the functions of the salivary complex of these insects. here, we describe the ultrastructure of the salivary glands of the neotropical brown stink bug, euschistus heros, which is a major component of the pentatomid pest complex on soybeans, glycine max, in the neotropics. our results revealed a salivary gland complex consisting of two lobes (i. ... | 2017 | 28658296 |
| potential of three trap crops in managing nezara viridula (hemiptera: pentatomidae) on tomatoes in florida. | the southern green stink bug, nezara viridula (l.) (hemiptera: pentatomidae), is a serious insect pest of tomatoes in florida. in this study, we examined the use of three species of trap crops to manage n. viridula in north florida tomato crops in 2014 and 2015. we used striped sunflower (helianthus annuus) (asterales: asteraceae) and wild game feed sorghum (sorghum bicolor) (poales: poaceae) in both years, but different species of millet each year: browntop millet (panicum ramosum) (poales: poa ... | 2017 | 29040660 |
| spatial distribution of stink bugs (hemiptera: pentatomidae) in wheat. | a two-year study was conducted in south carolina wheat (triticum aestivum l. (poales: poaceae)) fields to describe spatial and temporal dynamics of stink bugs (hemiptera: pentatomidae), which were sampled weekly with sweep nets. in 2010, the main phytophagous stink bugs caught in a grid sampling plan across two fields were the brown stink bug, euschistus servus (say), the rice stink bug, oebalus pugnax (f.), the southern green stink bug, nezara viridula (l.), and the red shouldered stink bug, th ... | 2014 | 25205358 |
| dispersal pattern and dispersion of adult and nymph stink bugs (hemiptera: pentatomidae) in wheat and corn. | euschistus servus (say) can develop a generation on wheat, triticum aestivum l., before moving to corn, zea mays l., where it can be a pest. because effective management methods are unknown, this study sought to describe the spatial distribution and dispersal of e. servus in the wheat and corn interface. in addition, oebalus pugnax (f.) densities were documented in both crops. wheat fields adjacent to the corn were sampled before harvest and stink bugs were marked using a product containing egg ... | 2013 | 24280558 |
| species composition and abundance of stink bugs (hemiptera: heteroptera: pentatomidae) in minnesota field corn. | in response to concerns of increasing significance of stink bugs (hemiptera: heteroptera: pentatomidae) in northern states, a survey was conducted over 2 yr in minnesota to characterize the pentatomidae associated with field corn, zea mays l. halyomorpha halys (stål), an exotic species, was not detected in this survey, despite continued detection of this species as an invader of human-made structures in minnesota. five species of pentatomidae (four herbivorous; one predatory) were collected from ... | 2015 | 26313176 |
| nosema maddoxi sp. nov. (microsporidia, nosematidae), a widespread pathogen of the green stink bug chinavia hilaris (say) and the brown marmorated stink bug halyomorpha halys (stål). | we describe a unique microsporidian species that infects the green stink bug, chinavia hilaris; the brown marmorated stink bug, halyomorpha halys; the brown stink bug, euschistus servus; and the dusky stink bug, euschistus tristigmus. all life stages are unikaryotic, but analysis of the consensus small subunit region of the ribosomal gene places this microsporidium in the genus nosema, which historically has been characterized by diplokaryotic life stages. it is also characterized by having the ... | 2017 | 28984006 |
| agamermis (nematoda: mermithidae) infection in south carolina agricultural pests. | native and invasive stink bugs (hemiptera: pentatomidae) and the closely related invasive megacopta cribraria (hemiptera: plataspidae) are agricultural pests in the southeastern united states. natural enemies, from various phyla, parasitize these pests and contribute to population regulation. we specifically investigated nematoda infections in pentatomid and plataspid pests in one soybean field in south carolina in 2015. nematodes were identified through molecular and morphological methods and a ... | 2016 | 28154435 |
| contrasting role of temperature in structuring regional patterns of invasive and native pestilential stink bugs. | assessment and identification of spatial structures in the distribution and abundance of invasive species is important for unraveling the underlying ecological processes. the invasive agricultural insect pest halyomorpha halys that causes severe economic losses in the united states is currently expanding both within united states and across europe. we examined the drivers of h. halys invasion by characterizing the distribution and abundance patterns of h. halys and native stink bugs (chinavia hi ... | 2016 | 26928562 |
| trap cropping systems and a physical barrier for suppression of stink bugs (hemiptera: pentatomidae) in cotton. | euschistus servus (say), nezara viridula (l.), and chinavia hilaris (say) (hemiptera: pentatomidae) are economic pests of cotton in the coastal plain of the southeastern united states. the objective of this 2-yr study was to determine the ability of trap cropping systems, pheromone-baited stink bug traps, and a synthetic physical barrier at the peanut-to-cotton interface to manage stink bugs in cotton. the physical barrier was the most effective management tactic. stink bug density in cotton was ... | 2015 | 26453721 |
| stylet penetration estimates for a suite of phytophagous hemipteran pests of row crops. | members of the miridae (lygus lineolaris palisot de beauvois and pseudatomoscelis seriatus reuter) and pentatomidae (acrosternum hilare say, euschistus servus (say), euschistus tristigmus (say), euschistus quadrator rolston, oebalus pugnax (f.), piezodorus guildinii (westwood), and thyanta custator accerra mcatee) comprise a piercing-sucking insect complex that continues to plague multiple crops, including cotton. all these species have been associated with pathogen transmission. breaching of bo ... | 2015 | 26313968 |
| physical barriers for suppression of movement of adult stink bugs into cotton. | nezara viridula (l.), euschistus servus (say), and chinavia hilaris (say) (heteroptera: pentatomidae) are economic pests of cotton in the southeastern usa. because adult stink bugs exhibit edge-mediated dispersal at crop-to-crop interfaces as they colonize cotton, strategic placement of physical barriers at these interfaces could manage these pests. the objective of this study was to determine the effectiveness of a physical barrier, either synthetic or plant-based, at the peanut-to-cotton inter ... | 2014 | 25100928 |
| species composition, abundance, and seasonal dynamics of stink bugs (hemiptera: pentatomidae) in minnesota soybean fields. | stink bugs (hemiptera: pentatomidae) have historically not been pests of soybean in minnesota. in response to the invasion of halyomorpha halys (stål) and reports of increasing abundance of species native to north america, a state-wide survey of soybean was conducted over 3 yr in minnesota to determine species composition, abundance, and seasonal dynamics of pentatomidae associated with soybean. fourteen species of pentatomidae (12 herbivorous and two predatory) were collected from soybean. h. h ... | 2014 | 24937441 |
| effect of field edges on dispersal and distribution of colonizing stink bugs across farmscapes of the southeast usa. | stink bugs (heteroptera: pentatomidae), including nezara viridula (l.), euschistus servus (say), and chinavia hilaris (say), are economic pests in farmscapes where they move within and between closely associated crop and non-crop habitats. thus, field edges in these farmscapes include not only crop-to-crop interfaces but also those edges adjoining non-crop habitats. we examined the influence of field edges on colonization of stink bugs in southeastern usa farmscapes composed of typical combinati ... | 2014 | 24044749 |
| species composition, monitoring, and feeding injury of stink bugs (heteroptera: pentatomidae) in blackberry. | blackberry (rubus spp.) production in florida has increased > 100% within the past two decades. and several insect pests, including stink bugs (heteroptera: pentatomidae), have been observed feeding on this crop. the objectives for this study were to determine the stink bug species present in blackberry; to develop monitoring tools for stink bugs in blackberry; and to describe feeding injury to blackberries by euschistus quadrator rolston, a relatively new stink bug pest to florida, that has spr ... | 2013 | 23786082 |
| review of the <i>sulcacitus</i> group of <i>euschistus</i> (pentatomidae: pentatominae: carpocorini) with description of the internal female genitalia and a new species. | euschistus dallas is comprised of 66 species in three subgenera. species of the nominate subgenus occur mainly in central and north america. some groups of species have been proposed to euschistus (euschistus) based on general external and male genitalic morphologies. here, we review the sulcacitus group providing illustrations and descriptions of the internal and external genitalia of both sexes, illustrating females for the first time. a new species, euschistus (euschistus) tacitus sp. nov. bi ... | 2017 | 29245434 |
| monitoring of brown stink bug (hemiptera: pentatomidae) population dynamics in corn to predict its abundance using weather data. | the brown stink bug (bsb), euschistus servus (say) (hemiptera: pentatomidae), is a serious economic pest of corn production in the southeastern united states. the bsb population dynamics was monitored for 17 weeks from tasseling to preharvest of corn plants (i.e., late may to mid-september) using pheromone traps in three corn fields from 2005 to 2009. the trap data showed two peaks in early june and mid-august, respectively. the relationship between trap catch and pregrowing season weather data ... | 2017 | 29027767 |
| methyl jasmonate induction of cotton: a field test of the 'attract and reward' strategy of conservation biological control. | natural or synthetic elicitors can affect plant physiology by stimulating direct and indirect defence responses to herbivores. for example, increased production of plant secondary metabolites, a direct response, can negatively affect herbivore survival, development and fecundity. indirect responses include increased emission of plant volatiles that influence herbivore and natural enemy behaviour, and production of extrafloral nectar that serves as a food source for natural enemies after their ar ... | 2017 | 28894566 |
| ecosystem-based incorporation of nectar-producing plants for stink bug parasitoids. | adult parasitoids of pest insects rely on floral resources for survival and reproduction, but can be food-deprived in intensively managed agricultural systems lacking these resources. stink bugs are serious pests for crops in southwest georgia. provisioning nectar-producing plants for parasitoids of stink bugs potentially can enhance biocontrol of these pests. knowledge of spatial and temporal availability and distribution of stink bugs in host plants is necessary for appropriate timing and plac ... | 2017 | 28672808 |
| a laboratory evaluation of chemigation to manage stink bugs (hemiptera: pentatomidae). | application of insecticides for stink bug management through overhead irrigation, also called chemigation, could reduce application costs, soil compaction, and applicator exposure, while enabling growers to treat multiple fields simultaneously. the objective of these laboratory experiments was to compare knockdown, survival, and efficacy of insecticides when appropriately diluted for ground sprayer and chemigation applications. treatments included water, bifenthrin [0.11 kg (ai)/ha] and dicrotop ... | 2017 | 28334122 |
| competitive release and outbreaks of non-target pests associated with transgenic bt cotton. | the adoption of transgenic bt cotton has, in some cases, led to environmental and economic benefits through reduced insecticide use. however, the distribution of these benefits and associated risks among cotton growers and cotton-growing regions has been uneven due in part to outbreaks of non-target or secondary pests, thereby requiring the continued use of synthetic insecticides. in the southeastern usa, bt cotton adoption has resulted in increased abundance of and damage from stink bug pests, ... | 2016 | 27509747 |
| aggregation and association of ndvi, boll injury, and stink bugs in north carolina cotton. | sampling of herbivorous stink bugs in southeastern u.s. cotton remains problematic. remote sensing was explored to improve sampling of these pests and associated boll injury. two adjacent 14.5-ha cotton fields were grid sampled in 2011 and 2012 by collecting stink bug adults and bolls every week during the third, fourth, and fifth weeks of bloom. satellite remote sensing data were collected during the third week of bloom during both years, and normalized difference vegetation index (ndvi) values ... | 2015 | 26411787 |