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- Author:
- Branson, David H.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1441
- ISSN:
- 0046-225X
- Subject:
- grasshoppers; population density; species diversity; population dynamics; integrated pest management; insect communities; habitats; prairies; grassland fires; burning season; grazing; foraging; livestock; Great Plains region
- Abstract:
- ... The outcomes of grasshopper responses to both vertebrate grazing and fire vary across grassland ecosystems, and are strongly influenced by local climactic factors. Thus, the possible application of grazing and fire as components of an ecologically based grasshopper management strategy must be investigated in regional studies. In this study, we examined the effects of grazing and fire on grasshoppe ...
- Handle:
- 10113/44839
- DOI:
- 10.1603/EN09378
- PubMed:
- 22546438
-
http://dx.doi.org/10.1603/EN09378
- Author:
- Ouellette, Gary D.; Drummond, Francis A.; Choate, Beth; Groden, Eleanor
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1447-1456
- ISSN:
- 0046-225X
- Subject:
- national parks; environmental impact; Myrmica rubra; insect surveys; introduced species; spatial distribution; insect communities; species diversity; indigenous species; invasive species; ecological competition; habitats; new geographic records; Maine
- Abstract:
- ... Exotic ant species are a primary threat to ant biological diversity, posing a negative impact to native ant communities. In this study, we examine species richness of ants (family Formicidae) in Acadia National Park, ME, as a fundamental step toward understanding the present impact of the exotic species Myrmica rubra on native ant species. Twelve habitat types were sampled, along six transects, wi ...
- DOI:
- 10.1603/EN09306
- PubMed:
- 22546439
-
http://dx.doi.org/10.1603/EN09306
- Author:
- Pierre, Jacqueline; Hofs, Jean-Luc
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1523-1531
- ISSN:
- 0046-225X
- Subject:
- Gossypium hirsutum; cotton; transgenic plants; Bacillus thuringiensis; plant-incorporated protectants; crystal proteins; Melyridae; pollinating insects; pollen flow; species diversity; Scoliidae; Nitidulidae; spatial distribution; genotype; Apis mellifera; indigenous species; field experimentation; insect flight; insect pests; population density; gene flow; South Africa
- Abstract:
- ... In South Africa, modified Bt (Cryl Ac) cotton cultivars and organic ones coexist. This raises the question of the risk of dissemination of genetically modified (GM) pollen to non-GM crops by visiting insects. We inventoried the flower-visiting insects in Bt and non-Bt cotton fields of the South African Highveld region and investigated their role in pollen dispersal. Their diversity and abundance v ...
- DOI:
- 10.1603/EN09142
- PubMed:
- 22546448
-
http://dx.doi.org/10.1603/EN09142
- Author:
- Seal, D.R.; Klassen, W.; Kumar, V.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1389-1398
- ISSN:
- 0046-225X
- Subject:
- Scirtothrips; insect pests; host plants; greenhouse experimentation; insect flight; insect behavior; diurnal activity; insect reproduction; oviposition; insect development; fecundity; host preferences; population growth
- Abstract:
- ... Since its establishment in Florida in 2005, Scirtothrips dorsalis Hood, a highly polyphagous species, has become an economically important pest of ornamental plants and a potentially significant pest of vegetable and fruit crops. Fruit and vegetable production in Florida is trending toward significant adoption of organic methods and use of widely dispersed small fields in rapidly urbanizing landsc ...
- DOI:
- 10.1603/EN09236
- PubMed:
- 22546433
-
http://dx.doi.org/10.1603/EN09236
- Author:
- Leblanc, Luc; Vargas, Roger I.; Rubinoff, Daniel
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1626
- ISSN:
- 0046-225X
- Subject:
- Bactrocera cucurbitae; Bactrocera dorsalis; Ceratitis capitata; fruit flies; insect traps; baiting; nontarget organisms; Torula; baits; males; females; propylene glycol; synergism; Hawaii
- Abstract:
- ... MultiLure traps were deployed in a Hawaiian orchard to compare the attraction of economically important fruit flies and nontarget insects to the three-component BioLure and torula yeast food lures. Either water or a 20% propylene glycol solution was used to dissolve the torula yeast or as capture fluid in BioLure traps. Torula yeast in water was more attractive than BioLure for male and female Bac ...
- Handle:
- 10113/46259
- DOI:
- 10.1603/EN10090
- PubMed:
- 22546461
-
http://dx.doi.org/10.1603/EN10090
- Author:
- Obenauer, P.J.; Kaufman, P.E.; Kline, D.L.; Allan, S.A.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1608
- ISSN:
- 0046-225X
- Subject:
- Aedes albopictus; hematophagous insects; pest monitoring; detection; suburban areas; vegetation; oviposition sites; insect traps; methodology; accuracy; insect collection; Florida
- Abstract:
- ... A sampling study using a BG-Sentinel trap baited with CO2, a gravid trap baited with an oak-pine infusion, a human subject, and a vegetative aspirator was conducted to compare their reliability at detecting Aedes albopictus Skuse in suburban and sylvatic habitats. We collected 73,849 mosquitoes, representing 29 species from 11 genera over a 20-wk period. The BG-Sentinel trap accounted for over 85% ...
- Handle:
- 10113/46441
- DOI:
- 10.1603/EN09322
- PubMed:
- 22546459
-
http://dx.doi.org/10.1603/EN09322
- Author:
- Jandricic, S.E.; Wraight, S.P.; Bennett, K.C.; Sanderson, J.P.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1631
- ISSN:
- 0046-225X
- Subject:
- Viola wittrockiana; bedding plants; Aulacorthum solani; insect pests; insect development; life tables; air temperature; nymphs; instars; population dynamics; population growth; fecundity; heat sums
- Abstract:
- ... Aulacorthum solani (Kaltenbach) (known as foxglove aphid or glasshouse potato aphid) is a pest of increasing economic importance in several agricultural crops worldwide, including greenhouse vegetables and ornamentals. Developmental rates and age-specific life tables for a North American population of A. solani on pansy (Viola × wittrockiana) (Gams.) were determined at six constant temperatures, a ...
- Handle:
- 10113/46260
- DOI:
- 10.1603/EN09351
- PubMed:
- 22546462
-
http://dx.doi.org/10.1603/EN09351
- Author:
- Frewin, Andrew J.; Xue, Yingen; Welsman, John A.; Broadbent, A. Bruce; Schaafsma, Arthur W.; Hallett, Rebecca H.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1570-1578
- ISSN:
- 0046-225X
- Subject:
- Aphis glycines; insect pests; Aphelinus; parasitoids; biological control agents; natural enemies; air temperature; insect development; biological control; ova; pupae; mortality; predator-prey relationships; Ontario
- Abstract:
- ... Since its introduction in 2000, the soybean aphid (Aphis glycines Matsumura) has been a serious pest of soybean in North America. Currently, insecticide application is the only recommended control method. However, a number of natural enemies have the potential to regulate soybean aphid populations. In 2007, Aphelinus certus Yasnosh, a soybean aphid parasitoid native to Asia, was found in commercia ...
- DOI:
- 10.1603/EN09312
- PubMed:
- 22546454
-
http://dx.doi.org/10.1603/EN09312
- Author:
- Silva, Janisete G.; Dutra, Vivian S.; Santos, Mirian S.; Silva, Nívea M.O.; Vidal, Daniela B.; Nink, Ricardo A.; Guimarães, Jorge A.; Araujo, Elton L.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1457-1465
- ISSN:
- 0046-225X
- Subject:
- Anastrepha; fruit flies; vegetation; orchards; fruit trees; introduced species; indigenous species; host plants; Braconidae; parasitoids; natural enemies; biological control agents; larvae; new geographic records; host-parasite relationships; insect surveys; pest monitoring; Brazil
- Abstract:
- ... We documented fruit fly-host associations and infestation rates over 5 yr in the state of Bahia, Brazil, by systematically collecting native and introduced fruits in backyard and commercial orchards, experimental stations, and patches of native vegetation. Fruit were collected in multiple sites in the southern and southernmost regions of Bahia. A total of 942.22 kg from 27 fruit species in 15 plan ...
- DOI:
- 10.1603/EN10079
- PubMed:
- 22546440
-
http://dx.doi.org/10.1603/EN10079
- Author:
- Reeves, R.B.; Greene, J.K.; Reay-Jones, F.P.F.; Toews, M.D.; Gerard, P.D.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1420-1427
- ISSN:
- 0046-225X
- Subject:
- cotton; agroecosystems; plant damage; insect pests; landscapes; Gossypium hirsutum; agricultural land; Pentatomidae; insect collection; nymphs; spatial variation; integrated pest management; imagos; habitats; bolls; South Carolina
- Abstract:
- ... The distribution of phytophagous stink bugs and associated boll injury in margins of cotton fields bordering various agronomic crops and woodlands were studied in 2007 and 2008. Two commercial cotton fields, ranging in size from 7.8 to 12.1 ha in Barnwell and Lee Counties, SC, were sampled weekly each year along predetermined transects at 0, 5, 10, and 25 m from the outside margin into the cotton ...
- DOI:
- 10.1603/EN09194
- PubMed:
- 22546436
-
http://dx.doi.org/10.1603/EN09194
- Author:
- Kong, Hailong; Luo, Lizhi; Jiang, Xingfu; Zhang, Lei
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1579-1585
- ISSN:
- 0046-225X
- Subject:
- insect behavior; insect pests; females; oviposition; insect flight; body weight; glycogen; triacylglycerols; velocity; water content; population density; larvae; imagos; insect rearing; Loxostege sticticalis
- Abstract:
- ... Tethered-flight techniques were used to investigate the flight potential of 1-d-old adult beet webworm, Loxostege sticticalis L. (Lepidoptera: Pyralidae), reared at densities of 1, 10, 20, 30, and 40 larvae per 650-ml jar. Larval density had a significant effect on the flight potential, including total flight duration, distance, average velocity, and longest flight duration. Adults reared at a den ...
- DOI:
- 10.1603/EN09314
- PubMed:
- 22546455
-
http://dx.doi.org/10.1603/EN09314
- Author:
- Fielding, Dennis J.; Defoliart, Linda S.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1643
- ISSN:
- 0046-225X
- Subject:
- Melanoplus; Melanoplus sanguinipes; insect pests; insect development; embryogenesis; univoltine habit; egg hatchability; overwintering; ova; life cycle (organisms); climate change; vegetation cover; soil temperature; diapause; simulation models
- Abstract:
- ... Accurate models of temperature-dependent embryonic developmental rates are important to assess the effects of a changing climate on insect life cycles and to suggest methods of population management by habitat manipulation. Embryonic development determines the life cycle of many species of grasshoppers, which, in cold climates, spend two winters in the egg stage. Increasing temperatures associated ...
- Handle:
- 10113/46682
- DOI:
- 10.1603/EN09356
- PubMed:
- 22546463
-
http://dx.doi.org/10.1603/EN09356
- Author:
- Sasakawa, Kôji
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1554-1560
- ISSN:
- 0046-225X
- Subject:
- agroecosystems; host range; insect behavior; seed predation; insect surveys; host plants; sex ratio; flowers; copulation; temperate zones; species diversity; foraging; field experimentation; imagos; Carabidae; Japan
- Abstract:
- ... Granivory is a specialized food habit in the predominantly carnivorous beetle family Carabidae. Most studies of carabid granivory have been conducted under laboratory conditions; thus, our knowledge of the feeding ecology of granivorous carabids in the field is insufficient. I conducted field observations of climbing behavior and seed predation by adult carabids in a lowland area of eastern Japan, ...
- DOI:
- 10.1603/EN10097
- PubMed:
- 22546452
-
http://dx.doi.org/10.1603/EN10097
- Author:
- Li, Guoping; Feng, Hongqiang; Gao, Yulin; Wyckhuys, Kris A.G.; Wu, Kongming
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1698-1704
- ISSN:
- 0046-225X
- Subject:
- Gossypium hirsutum; cotton; transgenic plants; Helicoverpa armigera; insect pests; Bacillus thuringiensis; crystal proteins; plant-incorporated protectants; defense mechanisms; genetic resistance; alleles; refuge habitats; bacterial toxins; insecticide resistance; geographical variation; temporal variation; larvae; genetic variation; natural selection; China
- Abstract:
- ... Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) is a key insect pest of cotton in Xinjiang cotton-planting region of northwest China. In this region, cotton is grown on average 1.65 million ha (1.531.80 million ha) annually in largely monoculture agricultural landscapes, similarly to cropping systems in the United States or Australia. Under such cropping regimes, naturally occurring refuges ( ...
- DOI:
- 10.1603/EN10077
- PubMed:
- 22546469
-
http://dx.doi.org/10.1603/EN10077
- Author:
- Farhadi, Roya; Allahyari, Hossein; Juliano, Steven A.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1586-1592
- ISSN:
- 0046-225X
- Subject:
- insect pests; predatory insects; biological control agents; males; gender differences; instars; Aphis fabae; foraging; population density; Hippodamia variegata; feed intake; larvae; imagos; females; predator-prey relationships; biological control
- Abstract:
- ... We compare the efficiencies of different stages of Hippodamia variegata (Coleoptera: Coccinellidae) preying on Aphis fabae (Scolpoli) (Hemiptera: Aphididae) by estimating the functional responses of all stages. The experiments were carried out on leaf disks in petri dishes with 15-20 replicates. Our results revealed that all larval instars and adult males and females of H. variegata exhibited type ...
- DOI:
- 10.1603/EN09285
- PubMed:
- 22546456
-
http://dx.doi.org/10.1603/EN09285
- Author:
- Reisig, Dominic D.; Godfrey, Larry D.; Marcum, Daniel B.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1617-1625
- ISSN:
- 0046-225X
- Subject:
- harvest date; dispersal behavior; sampling; insect pests; phenotype; Phleum pratense; diurnal activity; forage grasses; diurnal variation; seasonal variation; Anaphothrips obscurus; population structure; sticky traps; accuracy; population dynamics; California
- Abstract:
- ... Sampling studies were conducted on grass thrips, Anaphothrips obscurus (Müller) (Thysanoptera: Thripidae), in timothy, Phleum pratense L. These studies were used to compare the occurrence of brachypterous and macropterous thrips across sampling methods, seasons, and time of day. Information about the population dynamics of this thrips was also revealed. Three absolute and two relative methods wer ...
- DOI:
- 10.1603/EN09329
- PubMed:
- 22546460
-
http://dx.doi.org/10.1603/EN09329
- Author:
- Drummond, F.A.; Collins, J.A.; Choate, B.; Woodman, D.; Jennings, D.T.; Forsythe, H.Y. Jr.; Cokendolpher, J.C.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1428-1440
- ISSN:
- 0046-225X
- Subject:
- agroecosystems; overwintering; phosmet; ova; spinosad; plant pests; foliar application; Vaccinium; crop management; species diversity; esfenvalerate; insecticide residues; traps; organic production; blueberries; life cycle (organisms); Opiliones; plant protection; Maine
- Abstract:
- ... Over a period of 19 yr, the harvestman (Opiliones) community associated with the lowbush blueberry agro-ecosystem in Maine was studied. Eight species representing five genera, four subfamilies, and two families of harvestmen belonging to the suborder Eupnoi were collected. The harvestman community was dominated by two introduced, synanthropic species: Phalangium opilio in all but 1 yr (that year d ...
- DOI:
- 10.1603/EN09308
- PubMed:
- 22546437
-
http://dx.doi.org/10.1603/EN09308
- Author:
- Ruiz, Enrico A.; Rinehart, John E.; Hayes, Jane L.; Zuñiga, Gerardo
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1685
- ISSN:
- 0046-225X
- Subject:
- Dendroctonus pseudotsugae; forest pests; population dynamics; geographical distribution; haplotypes; population genetics; mitochondrial DNA; population growth; paleoecology; evolution; refuge habitats; Pseudotsuga menziesii; forest trees; temperate forests; Northwestern United States; Mexico; Southwestern United States
- Abstract:
- ... Contemporary distribution of North American species has been shaped by past glaciation events during the Quaternary period. However, their effects were not as severe in the southern Rocky Mountains and Northern Mexico as elsewhere in North America. In this context, we test hypotheses about the historical demography of Dendroctonus pseudotsugae, based on 136 haplotypes of mitochondrial cytochrome o ...
- Handle:
- 10113/46262
- DOI:
- 10.1603/EN09339
- PubMed:
- 22546468
-
http://dx.doi.org/10.1603/EN09339
- Author:
- Amarasekare, Kaushalya G.; Mannion, Catharine M.; Epsky, Nancy D.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1506
- ISSN:
- 0046-225X
- Subject:
- Paracoccus marginatus; insect pests; plant pests; Anagyrus; Encyrtidae; parasitoids; biological control agents; host preferences; hosts; instars; introduced species; sex ratio; insect development; adult insects; females; oviposition; oviposition sites
- Abstract:
- ... Three previously introduced parasitoids (Acerophagus papayae Noyes and Schauff, Anagyrus loecki Noyes and Menezes, and Pseudleptomastix mexicana Noyes and Schauff [Hymenoptera: Encyrtidae]) of the mealybug Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae) were studied for their host instar susceptibility and sex ratio, host instar selection, and interspecific compet ...
- Handle:
- 10113/46257
- DOI:
- 10.1603/EN09376
- PubMed:
- 22546446
-
http://dx.doi.org/10.1603/EN09376
- Author:
- Chen, Wenlong; Boetel, Mark A.
- Source:
- Environmental entomology 2010 v.39 no.5 pp. 1545
- ISSN:
- 0046-225X
- Subject:
- plant-insect relations; Homalodisca vitripennis; insect development; insect reproduction; mortality; longevity; life tables; oviposition; mating behavior; Helianthus annuus; Chrysanthemum morifolium; Euonymus japonicus; host plants; sunflower seed products; cut flowers; ornamental woody plants; insect pests; egg masses; embryogenesis; larval development; nymphs; females; insect rearing
- Abstract:
- ... Development, survivorship, longevity, reproduction, and life table parameters of the glassy-winged sharpshooter, Homalodisca vitripennis (Germar), were examined in the laboratory using three host plants, sunflower (Helianthus annuus L.), Chrysanthemum morifolium L., and euonymus (Euonymus japonica Thurb.). Females deposited similar-sized egg masses on all three plants. Hatching was highest with eg ...
- Handle:
- 10113/46152
- DOI:
- 10.1603/EN10098
- PubMed:
- 22546451
-
http://dx.doi.org/10.1603/EN10098