Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 49
|
Next »
Search Results
- Author:
- Jackson, D.M.; Nottingham, S.F.; Schlotzhauer, W.S.; Horvat, R.J.; Sisson, V.A.; Stephenson, M.G.; Foard, T.; McPherson, R.M.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1248-1255
- ISSN:
- 0046-225X
- Subject:
- volatile compounds; parasitoids; insect attractants; host plants; sex ratio; flowers; plant pests; Nicotiana tabacum; population density; Heliothis virescens; Cardiochiles nigriceps; North Carolina; Georgia
- Abstract:
- ... The presence of adult Cardiochiles nigriceps Viereck, a nearly obligatory parasitoid of tobacco budworm larvae, Heliothis virescens (F.) (Lepidoptera: Noctuidae), was monitored in fields with up to 117 accessions of Nicotiana species (Solanaceae) during 1985-1994 at Oxford, NC, Tifton, GA, and Athens, GA. Large numbers of wasps were observed flying over or reefing on several Nicotiana species, esp ...
- DOI:
- 10.1093/ee/25.5.1248
-
http://dx.doi.org/10.1093/ee/25.5.1248
- Author:
- Rejmankova, E.; Roberts, D.R.; Manguin, S.; Pope, K.O.; Komarek, J.; Post, R.A.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1058-1067
- ISSN:
- 0046-225X
- Subject:
- Anopheles albimanus; larvae; Cyanobacteria; population density; spatial distribution; oviposition; ambient temperature; oxygen; carbon dioxide; marshes; wet season; dry season; Belize
- Abstract:
- ... Northern Belize has extensive herbaceous wetlands. Those dominated by sparse emergent macrophytes, rushes (Eleocharis spp.) and sawgrass (Cladium jamaicense Crantz), often develop floating mats of cyanobacteria (blue-green algae). These mats provide suitable habitat for larvae of the malaria transmitting mosquito Anopheles albimanus Wiedemann. Presence/absence of A. albimanus larvae and cyanobacte ...
- DOI:
- 10.1093/ee/25.5.1058
- PubMed:
- 11540613
-
http://dx.doi.org/10.1093/ee/25.5.1058
- Author:
- Moldenke, A.R.; Thies, W.G.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 925-932
- ISSN:
- 0046-225X
- Subject:
- soil arthropods; fumigation; Phellinus weirii; indicator species; adverse effects; chloropicrin; disease control; seasonal variation; population density; nontarget organisms; biomass; root rot; population dynamics
- Abstract:
- ... A methodology using soil arthropods as a nontarget assay of chloropicrin fumigation against Phellinus root rot is described. Significant differences in seasonal abundances in control plot populations occurred for each of the 6 most common trophic guilds. Population densities were highest for springtails (Collembola) and oribatid mites (Cryptostigmata) during the late summer dry season; densities w ...
- DOI:
- 10.1093/ee/25.5.925
-
http://dx.doi.org/10.1093/ee/25.5.925
- Author:
- Woods, S.A.; Streett, D.A.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 906-911
- ISSN:
- 0046-225X
- Subject:
- Melanoplus sanguinipes; Melanoplus packardii; rubidium; ingestion; excretion; biological development; dosage
- Abstract:
- ... A series of assays were set up to evaluate several parameters affecting rubidium assimilation, excretion and effects on migratory grasshopper, Melanoplus sanguinipes (F.), development following ingestion of RbCl. Dosages of RbCl as high as 3.82 mg were found to elevate tissue concentrations of Rb as much as 4,900 ppm above background levels at 2 d after ingestion. The rate of ingestion was essenti ...
- DOI:
- 10.1093/ee/25.5.906
-
http://dx.doi.org/10.1093/ee/25.5.906
- Author:
- Fisher, J.R.; Kemp, W.P.; Pierson, F.B.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1158-1166
- ISSN:
- 0046-225X
- Subject:
- Acrididae; diapause; dormancy breaking; embryogenesis; duration; soil temperature; simulation models; prediction; Montana
- Abstract:
- ... Diapause termination, postdiapause duration, and field hatch of the bigheaded grasshopper, Aulocara ellotti (Thomas), were studied in southwest Montana during a 3-yr period. In general, > 70% of the sampled population had completed diapause by mid-November each year. Postdiapause embryonic developmental rates were obtained from a function fitted to hatch versus time data collected at constant temp ...
- DOI:
- 10.1093/ee/25.5.1158
-
http://dx.doi.org/10.1093/ee/25.5.1158
- Author:
- Felland, C.M.; Hull, L.A.; Barrett, B.A.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 963-971
- ISSN:
- 0046-225X
- Subject:
- Platynota idaeusalis; larvae; population dynamics; spatial distribution; seasonal variation; population density; overwintering; mortality; mowing; Malus domestica; orchards; host plants; plant pests; host preferences; Pennsylvania
- Abstract:
- ... Tufted apple bud moth, Platynota idaeusalis (Walker), larval movement, host utilization, and spatial and temporal distribution were examined in ground covers of apple orchards in south-central Pennsylvania. Larvae were placed in arenas 0 or 30-50 cm from host material of dandelion, Taraxacum officinale Weber, or fallen apples in the autumn. The number and location of exuvia were recorded in the sp ...
- DOI:
- 10.1093/ee/25.5.963
-
http://dx.doi.org/10.1093/ee/25.5.963
- Author:
- Tallamy, D.W.; Pesek, J.D.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1167-1172
- ISSN:
- 0046-225X
- Subject:
- Acalymma vittatum; Diabrotica undecimpunctata howardi; adults; wings; carbon; stable isotopes; larvae; food plants; age; biochemical pathways; C4 plants; C3 plants
- Abstract:
- ... Larval host associations in luperine rootworm beetles (Chrysomelidae), including the many pest species in the subtribes Diabroticina and Aulacophorina, remain largely unknown because adults often feed on plant species and families other than those favored for larval development. Because important questions concerning the evolutionary origins, systematic relationships, and pest management of luperi ...
- DOI:
- 10.1093/ee/25.5.1167
-
http://dx.doi.org/10.1093/ee/25.5.1167
- Author:
- Parajulee, M.N.; Wilson, L.T.; Rummel, D.R.; Carroll, S.C.; Trichilo, P.J.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 882-894
- ISSN:
- 0046-225X
- Subject:
- Anthonomus grandis; overwintering; mortality; diapause; rain; ambient temperature; heat sums; regression analysis; seasonal variation; Texas
- Abstract:
- ... Analysis of data from a 15-yr study, composed of 97 boll weevil cohorts from overwintering habitats in the Rolling Plains of Texas, showed that overwintering survivorship and spring/summer emergence were influenced by the day of the year (DOY) when the weevils entered overwintering habitat (DOYin), the amount of rainfall, and habitat temperatures experienced by the weevils during diapause. The ear ...
- DOI:
- 10.1093/ee/25.5.882
-
http://dx.doi.org/10.1093/ee/25.5.882
- Author:
- Cossentine, J.E.; Lemieux, J.; Zhang, Y.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1052-1057
- ISSN:
- 0046-225X
- Subject:
- viability; parasitism; parasitoids; ova; host-parasite relationships; sex ratio; crossing; female fertility; Choristoneura rosaceana; male fertility; progeny; Trichogramma; Cydia pomonella
- Abstract:
- ... The ability of the egg parasitoid Trichogramma platneri Nagarkatti to develop successfully in viable and nonviable codling moth, Cydia pomonella (L.), and viable oblique-banded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), was compared. A larger number of viable coaling moth eggs were parasitized per Trichogramma female [reared on Angoumois grain moth, Sitotroga cerealla ...
- DOI:
- 10.1093/ee/25.5.1052
-
http://dx.doi.org/10.1093/ee/25.5.1052
- Author:
- Kimberling, D.N.; Price, P.W.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1147-1153
- ISSN:
- 0046-225X
- Subject:
- intraspecific competition; galls; spatial distribution; density; leaves; mortality; fecundity; clones; pest resistance; plant veins; Arizona
- Abstract:
- ... Multivoltine, parthenogenetic grape phylloxera, Daktulosphaira vitifoliae Fitch, gall the leaves of wild grape, Vitis arizonica Englemann, along riparian areas in Arizona. We compared patterns of distribution of 1st-generation galls within leaves to determine if intraspecific competition for sites influenced the probability of survival and reproductive success. Within-leaf distribution patterns of ...
- DOI:
- 10.1093/ee/25.5.1147
-
http://dx.doi.org/10.1093/ee/25.5.1147
- Author:
- White, N.D.G.; Demianyk, C.J.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1109-1112
- ISSN:
- 0046-225X
- Subject:
- Tribolium confusum; seed germination; fatty acids; interspecific variation; seeds; chemical constituents of plants; postharvest diseases; Alternaria; wheat; water content; population growth; population density; storage pests; Aspergillus glaucus; Penicillium
- Abstract:
- ... Adults of Tribolium audax Halstead or Tribolium confusum Jacquelin du Val were placed in bottles of wheat plus ground wheat (23:1, wt:wt) to determine effects of the insects on grain deterioration over 20 wk at 30 degrees C and 70% RH. T. audax increased in numbers to approximately 25 insects per 130 g wheat compared with 500 insects per 130 g wheat for T. confusum by 20 wk. Seed germination decre ...
- DOI:
- 10.1093/ee/25.5.1109
-
http://dx.doi.org/10.1093/ee/25.5.1109
- Author:
- MacKay, P.A.; Lamb, R.J.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1032-1044
- ISSN:
- 0046-225X
- Subject:
- Sitobion fragariae; interspecific variation; seedling growth; Rhopalosiphum padi; Hordeum vulgare; Rhopalosiphum maidis; herbivores; Hysteroneura setariae; life cycle (organisms); Metopolophium dirhodum
- Abstract:
- ... Insect herbivores that have high impacts on their host plants reduce the longevity of their habitats and require dispersal mechanisms. This hypothesis was tested by comparing the life history traits, particularly short- and lone-distance dispersal mechanisms, of 5 aphid species in relation to their impact on barley, Hordeum vulgare L. The aphids were bird cherry-oat aphid, Rhopalosiphum padi (L.), ...
- DOI:
- 10.1093/ee/25.5.1032
-
http://dx.doi.org/10.1093/ee/25.5.1032
- Author:
- Bardwell, C.J.; Averill, A.L.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1083-1091
- ISSN:
- 0046-225X
- Subject:
- interspecific variation; Lymantria dispar; Pristiphora; Geometridae; Pardosa; predators; Vaccinium macrocarpon; predation; Salticidae; larvae; Sparganothis; predator-prey relationships; defense mechanisms
- Abstract:
- ... Two laboratory experiments, a choice test and observations of individual spider-larva interactions, were conducted to determine how the morphological or behavioral defenses, or both, of larvae may affect spider predation success for 2 genera of spiders [Pardosa (Lycosidae), and Habronattus (Salticidae)] commonly found in Massachusetts cranberry, Vaccinium macrocarpon Aiton, ecosystems. Four specie ...
- DOI:
- 10.1093/ee/25.5.1083
-
http://dx.doi.org/10.1093/ee/25.5.1083
- Author:
- Klepetka, B.; Gould, F.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 993-1001
- ISSN:
- 0046-225X
- Subject:
- Heliothis virescens; age; mating behavior; resistance management; Bacillus thuringiensis; insecticide resistance
- Abstract:
- ... Laboratory experiments were conducted to determine if individuals within populations of the tobacco budworm, Heliothis virescens (F.), mate randomly. Our results indicate that within 8-m3 arenas, large and small moths do not show assortative mating or preference for one size class over another. Within the same arenas, nonrandom mating did occur based on mating history coupled with age. Biologicall ...
- DOI:
- 10.1093/ee/25.5.993
-
http://dx.doi.org/10.1093/ee/25.5.993
- Author:
- Dyer, L.E.; Landis, D.A.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1192-1201
- ISSN:
- 0046-225X
- Subject:
- parasitoids; sugars; longevity; relative humidity; Ichneumonidae; nutrient availability; microclimate; biological control agents; ambient temperature; habitats; Ostrinia nubilalis; Michigan
- Abstract:
- ... Eriborus terebrans (Gravenhorst) is the primary parasitoid of the European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera: Pyralidae), in Michigan. Previous studies demonstrated that early in the growing season, E. terebrans adults are more abundant, and parasitize a greater proportion of O. nubilalis larvae, near wooded edges of cornfields. We hypothesized that E. terebrans requires a sourc ...
- DOI:
- 10.1093/ee/25.5.1192
-
http://dx.doi.org/10.1093/ee/25.5.1192
- Author:
- Gannon, A.J.; Bach, C.E.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1077-1082
- ISSN:
- 0046-225X
- Subject:
- Glycine max; Epilachna varivestis; trichomes; density; larvae; biological development; mortality; feeding preferences; oviposition; pest resistance
- Abstract:
- ... The effect of trichome density on Mexican bean beetle, Epilachna varivestis Mulsant, development was studied using larvae reared on 3 soybean, Glycine max (L.) Merrill, isolines isogenic except for trichome density: glabrous, normal, and dense. Larvae completed the 1st instar most quickly on pubescent plants, whereas 3rd-instar duration was shortest on glabrous plants; however, total larval develo ...
- DOI:
- 10.1093/ee/25.5.1077
-
http://dx.doi.org/10.1093/ee/25.5.1077
- Author:
- Thorne, B.L.; Russek-Cohen, E.; Forschler, B.T.; Breisch, N.L.; Traniello, J.F.A.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 938-951
- ISSN:
- 0046-225X
- Subject:
- estimation; Monte Carlo method; mark-recapture studies; models; population density; Reticulitermes virginicus; mortality; Reticulitermes flavipes; Georgia
- Abstract:
- ... An evaluation of the application of mark-release-recapture models to assess foraging population sizes of subterranean termite colonies is presented. A combination of laboratory and field studies were used to examine the validity of 3 of the underlying assumptions, including persistence of dye marks (Nile Blue A), effect of dye mark on survivorship, and mix of marked and unmarked foragers within th ...
- DOI:
- 10.1093/ee/25.5.938
-
http://dx.doi.org/10.1093/ee/25.5.938
- Author:
- Alfaro, R.I.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1012-1019
- ISSN:
- 0046-225X
- Subject:
- Pissodes strobi; oviposition; resins; resin canals; resistance mechanisms; genotype; bark; feeding preferences; pest resistance; Picea sitchensis
- Abstract:
- ... White pine weevils, Pissodes strobi (Peck), caged on live clones (grafts) of resistant and susceptible Sitka spruce trees, Picea sitchensis (Bong) Carr., and petri dish experiments using cut branches from the same clones demonstrated that P. strobi feeding and oviposition was negatively correlated with the density of resin canals in the bark of the host tree. Weevils in cages containing resistant ...
- DOI:
- 10.1093/ee/25.5.1012
-
http://dx.doi.org/10.1093/ee/25.5.1012
- Author:
- Hoffmann, M.P.; Kirkwyland, J.J.; Smith, R.F.; Long, R.F.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 1173-1181
- ISSN:
- 0046-225X
- Subject:
- Acalymma trivittatum; Diabrotica virgifera virgifera; kairomones; Diabrotica undecimpunctata howardi; insect attractants; Diabrotica undecimpunctata undecimpunctata; bait traps; Diabrotica barberi; sex ratio; height; Acalymma vittatum; diurnal variation; insect control; sticky traps; New York; California
- Abstract:
- ... Sticky traps with and without the attractant TIC (1,2,4-trimethoxybenzene, indole, and trans-cinnamaldehyde) were evaluated in cucurbits for capture of striped cucumber beetle, Acalymma vittatum (F.), spotted cucumber beetle, Diabrotica undecimpunctata howardi Barber, western corn rootworm, Diabrotica virgifera virgifera LeConte, and northern corn rootworm, D. barberi Smith & Lawrence, in New York ...
- DOI:
- 10.1093/ee/25.5.1173
-
http://dx.doi.org/10.1093/ee/25.5.1173
- Author:
- Regniere, J.
- Source:
- Environmental entomology 1996 v.25 no.5 pp. 869-881
- ISSN:
- 0046-225X
- Subject:
- insect pests; animal ecology; landscape ecology; ambient temperature; altitude; simulation models; expert systems; Choristoneura fumiferana; phenology; seasonal variation; New Brunswick
- Abstract:
- ... Determining and depicting the landscape-wide outcome of temperature-dependent ecological processes is important in the study of spatial patterns in insect ecology as well as in the efficient deployment of human and material resources for pest management. A generalized approach is proposed that consists of a temperature-driven simulation model that uses data from a limited number of strategically l ...
- DOI:
- 10.1093/ee/25.5.869
-
http://dx.doi.org/10.1093/ee/25.5.869