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You searched for: Journal Environmental entomology Remove constraint Journal: Environmental entomology Publication Year 2010 Remove constraint Publication Year: 2010 Source 2010 v.39 no.5 Remove constraint Source: 2010 v.39 no.5
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1. An Experimental Analysis of Grasshopper Community Responses to Fire and Livestock Grazing in a Northern Mixed-Grass Prairie

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

2. Ant Diversity and Distribution in Acadia National Park, Maine

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

3. Astylus atromaculatus (Coleoptera: Melyridae): Abundance and Role in Pollen Dispersal in Bt and Non-Bt Cotton in South Africa

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

4. Biological Parameters of Scirtothrips dorsalis (Thysanoptera: Thripidae) on Selected Hosts

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

5. Captures of Pest Fruit Flies (Diptera: Tephritidae) and Nontarget Insects in BioLure and Torula Yeast Traps in Hawaii

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

6. Detection of and Monitoring for Aedes albopictus (Diptera: Culicidae) in Suburban and Sylvatic Habitats in North Central Florida using Four Sampling Techniques

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

7. Developmental Times and Life Table Statistics of Aulacorthum solani (Hemiptera: Aphididae) at Six Constant Temperatures, with Recommendations on the Application of Temperature-Dependent Development Models

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

8. Development and Parasitism by Aphelinus certus (Hymenoptera: Aphelinidae), a Parasitoid of Aphis glycines (Hemiptera: Aphididae)

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

9. Diversity of Anastrepha spp. (Diptera: Tephritidae) and Associated Braconid Parasitoids from Native and Exotic Hosts in Southeastern Bahia, Brazil

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

10. Effects of Adjacent Habitat on Populations of Stink Bugs (Heteroptera: Pentatomidae) in Cotton as Part of a Variable Agricultural Landscape in South Carolina

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

11. Effects of Larval Density on Flight Potential of the Beet Webworm, Loxostege sticticalis (Lepidoptera: Pyralidae)

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

12. Embryonic Developmental Rates of Northern Grasshoppers (Orthoptera: Acrididae): Implications for Climate Change and Habitat Management

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

13. Field Observations of Climbing Behavior and Seed Predation by Adult Ground Beetles (Coleoptera: Carabidae) in a Lowland Area of the Temperate Zone

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

14. Frequency of Bt Resistance Alleles in Helicoverpa armigera in the Xinjiang Cotton-Planting Region of China

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

15. Functional Response of Larval and Adult Stages of Hippodamia variegata (Coleoptera: Coccinellidae) to Different Densities of Aphis fabae (Hemiptera: Aphididae)

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

16. Grass Thrips (Anaphothrips obscurus) (Thysanoptera: Thripidae) Population Dynamics and Sampling Method Comparison in Timothy

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

17. Harvestman (Opiliones) Fauna Associated with Maine Lowbush Blueberry Fields in the Major Production Areas of Washington and Hancock Counties

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

18. Historical Demography and Phylogeography of a Specialist Bark Beetle, Dendroctonus pseudotsugae Hopkins (Curculionidae: Scolytinae)

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

19. Host Instar Susceptibility and Selection and Interspecific Competition of Three Introduced Parasitoids of the Mealybug Paracoccus marginatus (Hemiptera: Pseudococcidae)

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

20. Host Plant Effects on Development and Reproduction of the Glassy-Winged Sharpshooter, Homalodisca vitripennis (Homoptera: Cicadellidae)

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