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Journal of Economic Entomology

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https://www.readbyqxmd.com/read/29329403/host-tree-selection-by-the-invasive-argentine-ant-hymenoptera-formicidae-in-relation-to-honeydew-producing-insects
#1
Yugo Seko, Daisuke Hayasaka, Atsushi Nishino, Taizo Uchida, Francisco Sánchez-Bayo, Takuo Sawahata
The Argentine ant, Linepithema humile (Mayr; Hymenoptera: Formicidae), is one of the world's most hazardous invasive species, and thus its eradication from Japan is important. Physical and chemical controls can be expensive and cause strong adverse effects on local terrestrial ecosystems regardless of their high efficacy. Here, presence/absence of host-tree selection by Argentine ants was investigated to understand the ant-honeydew-producing insects interactions in order to develop new cultural controls compatible with biodiversity conservation...
January 10, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29329399/yield-losses-in-transgenic-cry1ab-and-non-bt-corn-as-assessed-using-a-crop-life-table-approach
#2
Gerson A Silva, Marcelo C Picanço, Lino R Ferreira, Dalton O Ferreira, Elizeu S Farias, Thadeu C Souza, Nilson Rodrigues-Silva, Eliseu José G Pereira
In this study, we constructed crop life tables for Bacillus thuringiensis Berliner (Bt) Cry1Ab and non-Bt corn hybrids, in which yield-loss factors and abundance of predaceous arthropods were recorded during 2 yr at two locations. Corn kernel/grain was the yield component that had the heaviest losses and that determined the overall yield loss in the corn hybrids across years and locations. Yield losses in both corn hybrids were primarily caused by kernel-destroying insects. Helicoverpa zea (Boddie) and Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) were the key loss factors at one location, while at the other, the key loss factor was the silk fly larvae, Euxesta spp...
January 10, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29309605/billbug-coleoptera-dryophthoridae-sphenophorus-spp-seasonal-biology-and-dna-based-life-stage-association-in-indiana-turfgrass
#3
Alexandra G Duffy, Gareth S Powell, Jennifer M Zaspel, Douglas S Richmond
Eleven species of billbugs (Coleoptera: Dryophthoridae: Sphenophorus spp. Schönherr) infest managed turfgrass in North America. However, the regional variation in species composition remains unresolved and the seasonal phenology of several species has not been well documented. The latter gap is largely due to the inability to identify the larval stage to species-a confounding problem with several sympatric insect species. We used field trapping (adults) and soil sampling (larvae and pupae) surveys along with a DNA-based life-stage association to characterize the biology of billbugs associated with turfgrass in the Midwestern United States...
January 4, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29294024/low-dose-irradiation-with-modified-atmosphere-packaging-for-mango-against-the-oriental-fruit-fly-diptera-tephritidae
#4
Monnipa Srimartpirom, Intawat Burikam, Wanich Limohpasmanee, Titima Kongratarporn, Thodsapon Thannarin, Apita Bunsiri, Peter A Follett
Irradiation is used to disinfest the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and other pests on mango fruits before export from Thailand to foreign markets. Modified atmosphere packaging (MAP) used during export of mangoes creates a low-oxygen environment that may reduce the efficacy of quarantine irradiation treatment against B. dorsalis. 'Nam Dok Mai' mangoes infested with third-instar larvae of B. dorsalis, wrapped with three different kinds of MAP bags (CF1, FF5, and H34M) or no MAP, were treated with gamma radiation at 0 (control), 30, 60, 90, 120, and 150 Gy...
December 27, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29294007/performance-of-pseudapanteles-dignus-hymenoptera-braconidae-a-natural-enemy-of-tuta-absoluta-lepidoptera-gelechiidae-in-eggplant
#5
Nadia G Salas Gervassio, María G Luna, Franco D'Auro, Norma E Sánchez
Pseudapanteles dignus (Muesebeck; Hymenoptera: Braconidae) is an American endoparasitoid that attacks the South American tomato leafminer Tuta absoluta (Meyrick; Lepidoptera: Gelechiidae). The interaction between P. dignus and T. absoluta in tomato (Solanum lycopersicum L.; Solanales: Solanaceae) crops has demonstrated that this enemy exhibits some desirable ecological traits as an effective biological control agent of this pest. With the aim of extending the use of P. dignus to other solanaceous crops, laboratory experiments were carried out to assess some life history traits and the parasitism efficiency when parasitizing T...
December 27, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29309619/natural-compounds-as-spider-repellents-fact-or-myth
#6
Andreas Fischer, Manfred Ayasse, Maydianne C B Andrade
Although some spiders are globally invasive, found at high densities, and may be considered pests (particularly those that are toxic to humans), there are few pest management methods based on experimental data. 'Common wisdom' and advertisements on internet websites assert that a number of natural substances repel spiders. We tested whether the three substances cited most frequently (lemon oil, peppermint oil, and chestnut-fruits) effectively repelled female spiders or whether these were myths. We presented each of the putative repellents versus a control in a two-choice assay and tested responses of females of three invasive spider species in two different families: theridiids, Latrodectus geometricus C...
December 22, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29281077/value-of-neonicotinoid-insecticide-seed-treatments-in-mid-south-cotton-gossypium-hirsutum-malvales-malvaceae-production-systems
#7
J H North, J Gore, A L Catchot, S D Stewart, G M Lorenz, F R Musser, D R Cook, D L Kerns, D M Dodds
Neonicotinoid insecticides are currently one of two classes of chemicals available as a seed treatment for growers to manage early season insect pests of cotton, Gossypium hirsutum L. (Malvales: Malvaceae), and they are used on nearly 100% of cotton hectares in the midsouthern states. An analysis was performed on 100 seed-treatment trials from Arkansas, Louisiana, Mississippi, and Tennessee to determine the value of neonicotinoid seed treatments in cotton production systems. The analysis compared seed treated with neonicotinoid insecticides seed treatments plus a fungicide with seed only treated with fungicide...
December 21, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29281063/linking-demography-and-consumption-of-henosepilachna-vigintioctopunctata-coleoptera-coccinellidae-fed-on-solanum-photeinocarpum-solanales-solanaceae-with-a-new-method-to-project-the-uncertainty-of-population-growth-and-consumption
#8
Hsiu-Wen Huang, Hsin Chi, Cecil L Smith
Because life tables are capable of providing the most comprehensive description on the survival, stage differentiation, and the reproduction of animal populations, they can be considered as the bases of population ecology and pest management. Researchers concerned with studies involving life tables inevitably face the problem of describing the variabilities that occur in the survival, stage differentiation, and fecundity data. Finding a means to include these variabilities in population projections concerning pest management may be problematic...
December 21, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29281043/density-dependence-and-growth-rate-evolutionary-effects-on-resistance-development-to-bt-bacillus-thuringiensis
#9
Jeannette C Martinez, Michael A Caprio, Nicholas A Friedenberg
It has long been recognized that pest population dynamics can affect the durability of a pesticide, but dose remains the primary component of insect resistance management (IRM). For transgenic pesticidal traits such as Bt (Bacillus thuringiensis Berliner (Bacillales: Bacillaceae)), dose (measured as the mortality of susceptibles caused by a toxin) is a relatively fixed characteristic and often falls below the standard definition of high dose. Hence, it is important to understand how pest population dynamics modify durability and what targets they present for IRM...
December 21, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272524/leaf-chemical-compositions-of-different-eggplant-varieties-affect-performance-of-bemisia-tabaci-hemiptera-aleyrodidae-nymphs-and-adults
#10
Abu Tayeb Mohammad Hasanuzzaman, Md Nazrul Islam, Fang-Hua Liu, He-He Cao, Tong-Xian Liu
The sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) MEAM1 is a serious pest of many crops worldwide, and its control mostly depends on insecticides. One of the most preferred host plants of B. tabaci is eggplant, Solanum melongena, although preferences among different cultivars of the whiteflies vary. We hypothesized that certain nutritional and defensive chemicals of plant leaves, such as nitrogen, glucose, fructose, sucrose, amino acids, total phenolic components, and moisture content may affect whitefly's feeding and ovipositional preference, fecundity and longevity, nymph development, and survival among different eggplant varieties...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272430/enhanced-response-of-halyomorpha-halys-hemiptera-pentatomidae-to-its-aggregation-pheromone-with-ethyl-decatrienoate
#11
Kevin B Rice, Robert H Bedoukian, George C Hamilton, Peter Jentsch, Ashot Khrimian, Priscilla MacLean, William R Morrison, Brent D Short, Paula Shrewsbury, Donald C Weber, Nik Wiman, Tracy C Leskey
The invasive stink bug species, Halyomorpha halys (Stål) (Hemiptera; Pentatomidae), severely damages multiple agricultural commodities, resulting in the disruption of established IPM programs. Several semiochemicals have been identified to attract H. halys to traps and monitor their presence, abundance, and seasonal activity. In particular, the two-component aggregation pheromone of H. halys, (3S,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol and (3R,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol (PHER), in combination with the pheromone synergist, methyl (2E,4E,6Z)-decatrienoate (MDT), were found to be attractive...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272429/susceptibility-of-brazilian-populations-of-helicoverpa-armigera-and-helicoverpa-zea-lepidoptera-noctuidae-to-vip3aa20
#12
N A Leite, R M Pereira, M R Durigan, D Amado, J Fatoretto, F C L Medeiros, C Omoto
Transgenic maize expressing the insecticidal protein Vip3Aa20 is increasingly being adopted in Brazil. In this study, we determined the baseline susceptibility of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) and Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) to Vip3Aa20, as part of an Insect Resistance Management (IRM) program. Diet-overlay bioassays were conducted with neonates exposed to Vip3Aa20 for 7 d. The baseline susceptibility data were obtained for seven field populations of H. armigera and six of H...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272426/bivariate-pheromone-based-monitoring-of-spruce-budworm-larvae-lepidoptera-tortricidae
#13
Marc Rhainds, Pierre Therrien, Louis Morneau, Gaetan Leclair
A bivariate approach to pheromone-based monitoring is developed for the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae). The approach uses captures of males at pheromone traps for generation t (♂t) as a transitive term between densities of overwintering larvae in consecutive generations (L2t, L2t+1), based on a large data set including >2,000 observations in the province of Quebec (QC) between the interval 1992 and 2010. Although estimates of L2t and ♂t are autocorrelated to some extent, multi-year assessments of larval densities combined with pheromone trapping are justified by the complementarity (statistical significance) of both L2t and ♂t in predicting L2t+1 for 15 of 18 pairs of 2-yr intervals...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272425/national-trade-can-drive-range-expansion-of-bark-and-wood-boring-beetles
#14
Davide Rassati, Robert A Haack, Miloš Knížek, Massimo Faccoli
Several native species of bark- and wood-boring beetles (Coleoptera) have expanded their range within their native biogeographic regions in the last years, but the role of human activity in driving this phenomenon has been underinvestigated. Here we analyze 3 yr of trapping records of native bark- and wood-boring beetles (Cerambycidae and Scolytinae) collected at 12 Italian ports and their surrounding forests to help elucidate the human role in the movement of native species within their native biogeographic region...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272424/in-vivo-production-of-agrotis-ipsilon-nucleopolyhedrovirus-for-quantity-and-quality
#15
Robert W Behle
The black cutworm, Agrotis ipsilon (Hüfnagel) (Lepidoptera: Noctuidae), is a pest causing damage to a variety of plants including turf and row crops. A recently discovered baculovirus has the potential to be developed as a microbial-based biological pesticide to provide targeted control of this insect pest. In an effort to develop this baculovirus as a biological pesticide, experiments were conducted to determine parameters necessary to maximize in vivo production using cutworm larvae. Treatment combinations including three larval diets, larval age at infection (6- to 10-d old), and dosage of virus exposure (1 × 105 to 1 × 108 occlusion bodies [OBs]/ml) were evaluated...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272414/cross-resistance-patterns-to-insecticides-of-several-chemical-classes-among-listronotus-maculicollis-coleoptera-curculionidae-populations-with-different-levels-of-resistance-to-pyrethroids
#16
Olga S Kostromytska, Shaohui Wu, Albrecht M Koppenhöfer
The annual bluegrass weevil (ABW), Listronotus maculicollis Kirby (Coleoptera: Curculionidae), is the most damaging golf course insect pest in eastern North America. Heavy reliance on synthetic insecticides against this pest has led to widespread problems in controlling ABW with pyrethroid resistance already reported from populations in southern New England. This study evaluated the degree and scope of ABW resistance, determined existing cross-resistance patterns, and confirmed laboratory findings under greenhouse conditions...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272406/the-effects-of-an-ultra-low-volume-application-of-etofenprox-for-mosquito-management-on-megachile-rotundata-hymenoptera-megachilidae-larvae-and-adults-in-an-agricultural-setting
#17
Alyssa M Piccolomini, Michelle L Flenniken, Kevin M O'Neill, Robert K D Peterson
The alfalfa leafcutting bee, Megachile rotundata F. (Hymenoptera: Megachilidae), is one of the most intensively managed solitary bees and greatly contributes to alfalfa production in both the United States and Canada. Although production of certain commodities, especially alfalfa seed, has become increasingly dependent on this species' pollination proficiency, little information is known about how M. rotundata is affected by insecticide exposure. To better understand the risk posed to M. rotundata by the increasing use of insecticides to manage mosquitoes, we conducted field experiments that directly exposed M...
December 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272519/ecology-and-economics-of-using-native-managed-bees-for-almond-pollination
#18
Insu Koh, Eric V Lonsdorf, Derek R Artz, Theresa L Pitts-Singer, Taylor H Ricketts
Native managed bees can improve crop pollination, but a general framework for evaluating the associated economic costs and benefits has not been developed. We conducted a cost-benefit analysis to assess how managing blue orchard bees (Osmia lignaria Say [Hymenoptera: Megachildae]) alongside honey bees (Apis mellifera Linnaeus [Hymenoptera: Apidae]) can affect profits for almond growers in California. Specifically, we studied how adjusting three strategies can influence profits: (1) number of released O. lignaria bees, (2) density of artificial nest boxes, and (3) number of nest cavities (tubes) per box...
December 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272461/transferrin-family-genes-in-the-brown-planthopper-nilaparvata-lugens-hemiptera-delphacidae-in-response-to-three-insecticides
#19
Shun-Fan Wu, Jian Li, Yong Zhang, Cong-Fen Gao
Transferrins are involved in iron metabolism, immunity, xenobiotics tolerance, and development in eukaryotic organisms including insects. However, little is known about the relationship between transferrins and insecticide toxicology and resistance. Three transferrin family genes, NlTsf1, NlTsf2, and NlTsf3, of the brown planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae)a major insect pest of rice field in Asia, had been identified and characterized in this study. Quantitative polymerase chain reaction results demonstrated that NlTsf1 was significantly higher than the other two genes in different tissues...
December 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29272437/apis-cerana-is-less-sensitive-to-most-neonicotinoids-despite-of-their-smaller-body-mass
#20
Meng Yue, Shudong Luo, Jialin Liu, Jie Wu
Multiple stressors and interaction between them may be responsible for the decline of global pollinators. Among them, exposure to neonicotinoids has been getting more attention and has been considered as a main stressor. The Western honey bee (Apis mellifera L.) (Hymenoptera: Apidae) and Chinese indigenous honey bee (Apis cerana F.) (Hymenoptera: Apidae) are two managed honey bee species in China. These two species are widely used in beekeeping, and many wild A. cerana is widely spread in forests and contributes to the ecosystem...
December 19, 2017: Journal of Economic Entomology
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