U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Journal of economic entomology Remove constraint Journal name: Journal of economic entomology Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Source 1997 v.90 no.4 Remove constraint Source: 1997 v.90 no.4
Start Over

Search

27  Search Results

« Previous | 1 - 20 of 27 |
Number of results to display per page

Search Results

1. Acoustic counting of adult insects with differing rates and intensities of sound production in stored wheat

Author:
Mankin, R.W.; Shuman, D.; Coffelt, J.A.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1032-1038
ISSN:
0022-0493
Subject:
Rhyzopertha dominica; interspecific variation; Oryzaephilus surinamensis; Tribolium castaneum; Cryptolestes ferrugineus; body weight; wheat; detectors; sounds; storage pests; detection; Sitophilus oryzae
Abstract:
... Automated acoustic detection systems count the insects in a grain sample by analyzing the spatial and temporal distribution of sounds. The acoustic location fixing insect detector is an automated system developed originally to quantify hidden larval infestations in 1-kg samples of wheat. The detector analyzes input from an array of sensors embedded in the sample container walls. It identifies (sco ...
DOI:
10.1093/jee/90.4.1032

2. Differential susceptibility of Dysmicoccus vaccinii (Homoptera: Pseudococcidae) to Entomopathogenic nematodes (Rhabditida: Heterorhabditidae and Steinernematidae)

Author:
Stuart, R.J.; Polavarapu, S.; Lewis, E.E.; Gaugler, R.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 925-932
ISSN:
0022-0493
Subject:
Dysmicoccus; Heterorhabditis bacteriophora; Steinernema carpocapsae; Steinernema feltiae; Steinernema glaseri; entomopathogenic nematodes; strains; mortality; dosage; biological control; biological control agents; Vaccinium corymbosum; biological resistance
Abstract:
... The susceptibility of the mealy bug, Dysmioccus vaccinii Miller & Polavarapu, to infection by various species and strains of entomopathogenic nematodes was investigated in laboratory sand-dish and sand-column assays. Steinernema carpocapsae (Weiser) (AU strain), S.feltiae (Filipjev) (AB [Australia] strain), and S. glaseri (Steiner) (NC strain) were ineffective against individual mealybugs in sand- ...
DOI:
10.1093/jee/90.4.925
PubMed:
9260541

3. Effect of fall infestations of Russian wheat aphid (Homoptera: Aphididae) on winter wheat yield and quality on the Canadian prairies

Author:
Butts, R.A.; Thomas, J.B.; Lukow, O.; Hill, B.D.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1005-1009
ISSN:
0022-0493
Subject:
Diuraphis noxia; Triticum aestivum; autumn; population density; crop yield; crop damage; mortality; crop quality; chlorpyrifos; insect control; Alberta
Abstract:
... The effect of fall infestations of Russian wheat aphid, Diuraphis noxia (Mordvilko), was investigated in winter wheat in southern Alberta, Canada. In 3 trials, yield losses ranging from 25 to 37% were prevented by insecticide treatment of the Russian wheat aphid. The highest yield loss was associated with aphid densities of 4.81 + 0.61 aphids per plant in the early seedling stage (Zadoks 13) on 11 ...
DOI:
10.1093/jee/90.4.1005

4. Effects of leaf surface moisture and relative humidity on the efficacy of sugar esters from Nicotiana gossei against the tobacco aphid (Homoptera: Aphididae)

Author:
Xia, Y.; Johnson, A.W.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1010-1014
ISSN:
0022-0493
Subject:
relative humidity; sucrose esters; botanical insecticides; Myzus persicae nicotianae; water content; Nicotiana tabacum; toxicity; insect control; spraying; mortality; leaves; South Carolina
Abstract:
... The effects of leaf surface moisture and relative humidity on the toxicity of sugar esters extracted from Nicotiana gossei Domin to the tobacco aphid, Myzus nicotianae Blackman, were examined in the laboratory and the field. The efficacy of sugar esters applied at a concentration of 1 mg/ml against tobacco aphids was >5 times higher under moist conditions (either wet leaf surface or wet filter pap ...
DOI:
10.1093/jee/90.4.1010

5. Evaluation of trapping and vacuuming compared with low-impact insecticide tactics for managing German cockroaches in residences

Author:
Kaakeh, W.; Bennett, G.W.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 976-982
ISSN:
0022-0493
Subject:
Blattella germanica; insect control; control methods; trapping; sticky traps; baits; spraying; insecticides; population density
Abstract:
... In field studies, sticky traps and vacuum cleaners were evaluated to determine their effectiveness in the control of German cockroaches, Blattella germanica (L.), infesting multifamily housing. Trapping and vacuuming treatments were compared with insecticide baiting and residual spraying methods. At 4-wk posttreatment in 1995 tests, the percentage of cumulative population reductions caused by Sieg ...
DOI:
10.1093/jee/90.4.976

6. Identification of maize chromosome regions associated with antibiosis to corn earworm (Lepidoptera: Noctuidae) larvae

Author:
Byrne, P.F.; McMullen, M.D.; Wiseman, B.R.; Snook, M.E.; Musket, T.A.; Theuri, J.M.; Widstrom, N.W.; Coe, E.H.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1039-1045
ISSN:
0022-0493
Subject:
Helicoverpa zea; restriction fragment length polymorphism; antibiosis; Zea mays; loci; chemical constituents of plants; flavones; maysin; genotype; phenotypic variation; quantitative traits
Abstract:
... A better understanding of the genetic basis of antibiosis to the corn earworm. Helicoverpa zea (Boddie), in maize, Zea mays L., silks will help breeders develop hybrids with improved resistance to this pest. We identified maize chromosome regions associated with antibiosis to the corn earworm, and compared the results with those previously obtained for concentration of silk maysin, a C-glycosyl fl ...
DOI:
10.1093/jee/90.4.1039

7. Interaction between linear furanocoumarins found in celery and a commercial Bacillus thuringiensis formulation on Spodoptera exigua (Lepidoptera: Noctuidae) larval feeding behavior

Author:
Berdegue, M.; Trumble, J.T.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 961-966
ISSN:
0022-0493
Subject:
food intake; Bacillus thuringiensis subsp. aizawai; experimental diets; Spodoptera exigua; allelochemicals; psoralen; furans; methoxsalen; bergapten; larvae; feeding preferences; Apium graveolens
Abstract:
... The effect of linear furanocoumarins and Bacillus thuringiensis subsp. aizawai toxins on feeding behavior of beet armyworm, Spodoptera exigua (Hubner), larvae was quantified by giving larvae a choice between a control diet and a treated diet (diets contained linear furanocoumarins, B. thuringiensis, or linear furanocoumarins plus B. thuringiensis). Linear furanocoumarins were tested at concentrati ...
DOI:
10.1093/jee/90.4.961

8. Oviposition of European corn borer (Lepidoptera: Pyralidae) and impact of natural enemy populations in transgenic versus isogenic corn

Author:
Orr, D.B.; Landis, D.A.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 905-909
ISSN:
0022-0493
Subject:
Ostrinia nubilalis; Zea mays; transgenic plants; Bacillus thuringiensis subsp. kurstaki; crystal proteins; genetic transformation; oviposition; predation; parasitism; natural enemies; population density; Macrocentrus grandii; nontarget organisms; predators; parasites; adverse effects; Michigan
Abstract:
... In a 1994 field experiment, oviposition, predation, and parasitism of the European corn borer, Ostrinia nubilalis (Hubner), were recorded in transgenic and isogenic corn, Zea mays L. Plots of plants expressing the CryIA(b) protein of Bacillus thuringiensis Kurstaki and plots of isogenic plants both had 2nd-generation O. nubilalis egg mass densities of approximately 1.1 per plant, indicating a lack ...
DOI:
10.1093/jee/90.4.905

9. Penetration of polyvinyl chloride and polypropylene packaging films by Ephestia cautella (Lepidoptera: Pyralidae) and Plodia interpunctella (Lepidoptera: Pyralidae) larvae, and Tribolium confusum (Coleoptera: Tenebrionidae) adults

Author:
Bowditch, T.G.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1028-1031
ISSN:
0022-0493
Subject:
Cadra cautella; Plodia interpunctella; Tribolium confusum; storage pests; polypropylenes; poly(vinyl chloride); food packaging; resistance to penetration; packaging materials; plastic film
Abstract:
... In response to a series of consumer complaints regarding insect contamination of chocolate-based consumables, a study was undertaken to evaluate the barrier qualities of 2 flexible, transparent films against 1st- and 5th-instar Ephestia cautella Walker and Plodia interpunctella (Hubner) larvae, and Tribolium confusum Jacquelin du Val adults. It was found that the polypropylene film tested was resi ...
DOI:
10.1093/jee/90.4.1028

10. Reduced insecticide rates and strip-harvesting effects on alfalfa weevil (Coleoptera: Curculionidae) larval populations and prevalence of Zoophthora phytonomi (Entomophthorales: Entomophthoraceae)

Author:
Giles, K.L.; Obrycki, J.J.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 933-944
ISSN:
0022-0493
Subject:
Hypera postica; Erynia phytonomi; Medicago sativa; chlorpyrifos; permethrin; larvae; population density; disease prevalence; mortality; application rate; Iowa
Abstract:
... In 1994 and 1995, the effects of reduced insecticide rates and harvesting on Hypera postica (Gyllenhal) larval populations and prevalence of the fungal entomopathogen Zoophthora phytonomi Arthur were evaluated in alfalfa steps. Insecticide and harvest treatments were timed with predicted 1st occurrence of Z. phytonomi to maximize combined mortality. In Chariton, IA (1995), Lorsban 4 E (chlorpyrofo ...
DOI:
10.1093/jee/90.4.933

11. Whitefly (Hemiptera: Aleyrodidae) binding site for imidacloprid and related insecticides: a putative nicotinic acetylcholine receptor

Author:
Chao, S.L.; Dennehy, T.J.; Casida, J.E.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 879-882
ISSN:
0022-0493
Subject:
acetylcholine; nicotine; Bemisia argentifolii; cholinergic receptors; binding sites; imidacloprid
Abstract:
... Imidacloprid is used extensively to control sweetpotato whiteflies, Bemisia argentifolii Bellows & Perring [also known as B. tabaci (Gennadius) biotype B]. As a radioligand, [3H]imidacloprid binds rapidly to a single class of high-affinity sites in membrane preparations from whole adult whiteflies with an apparent dissociation constant of 2 nM and maximal binding capacity of 101 fmol/mg protein. T ...
DOI:
10.1093/jee/90.4.879
PubMed:
9260539

12. Binomial sequential sampling plans for cereal aphids (Homoptera: Aphididae) in spring wheat

Author:
Boeve, P.J.; Weiss, M.J.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 967-975
ISSN:
0022-0493
Subject:
Rhopalosiphum padi; Sitobion avenae; Schizaphis graminum; Triticum aestivum; population density; mathematical models; Monte Carlo method; economic threshold; North Dakota
Abstract:
... Binomial sequential sampling plans usually are more efficient than sampling plans based on counting the number of insects per sample. Our objective was to develop robust binomial sequential sampling plans based on a range of action thresholds for 3 species of cereal aphids, Rhopalosiphum padi (L), Sitobion avenae (F.). and Schizaphis graminum (Rondani). Aphid population data were collected from 45 ...
DOI:
10.1093/jee/90.4.967

13. Biological control of Bemisia argentifolii (Homoptera: Aleyrodidae) on poinsettia with inundative releases of Encarsia formosa Beltsville strain (Hymenoptera: Aphelinidae): can parasitoid reproduction augment inundative releases?

Author:
Hoddle, M.S.; Van Driesche, R.G.; Sanderson, J.P.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 910-924
ISSN:
0022-0493
Subject:
life tables; parasitism; parasitoids; reproduction; Euphorbia pulcherrima; Bemisia argentifolii; population density; Encarsia formosa; population growth; insect control; mortality; biological control
Abstract:
... The effectiveness of inundative releases of the parasitoid Encarsia formosa Beltsville strain for control of Bemisia argentifolii Bellows & Perring on poinsettia (Euphorbia pulcherrima Willd. ex Koltz.) was determined in replicated experimental greenhonses. We evaluated 2 release rates of E. formosa Beltsville strain: a low release rate (1 wasp per plant per week, released in 2 greenhouses) and a ...
DOI:
10.1093/jee/90.4.910

14. Components of the stilbene optical brightener tinopal LPW as enhancers for the gypsy moth (Lepidoptera: Lymantriidae) baculovirus

Author:
Shapiro, M.; Argauer, R.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 899-904
ISSN:
0022-0493
Subject:
viral insecticides; triazines; Lymantria dispar; stilbenes; Baculoviridae; sulfonates; insect control
Abstract:
... The optical brightener Tinopal LPW is a derivative of triazinyldiaminostilbene sulfonic acid, and consists of 1,3,5-triazine, stilbene, and sulfonic acid components. These components and derivatives were compared with Tinopal LPW to determine the source of activity enhancement for the gypsy moth, Lymantria dispar (L.), nuclear polyhedrosis virus. None of the components or derivatives was as active ...
DOI:
10.1093/jee/90.4.899

15. Effect of potato aphid (Homoptera: Aphididae) on yield, quality, and economics of staked-tomato production

Author:
Walgenbach, J.F.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 996-1004
ISSN:
0022-0493
Subject:
profits and margins; Solanum lycopersicum var. lycopersicum; Macrosiphum euphorbiae; population density; crop yield; crop quality; crop damage; food grades; insecticides; insect control; economic threshold; North Carolina
Abstract:
... Field studies were conducted in 1990 and 1992 to measure the impact of potato aphid, Macrosiphum euphorbiae (Thomas), infestations on the yield, quality, and economics of staked, fresh-market tomato production. Treatments consisted of a nontreated control and applications of the experimental aphicide RH7988 at threshold levels of 10, 25, 50, 65, and 100% infested leaves. Although total yield did n ...
DOI:
10.1093/jee/90.4.996

16. Effects of imidacloprid on development, mobility, and survival of first instars of Diaprepes abbreviatus (Coleoptera: Curculionidae)

Author:
Quintela, E.D.; McCoy, C.W.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 988-995
ISSN:
0022-0493
Subject:
application rate; roots; nutrition; dietary exposure; soil treatment; imidacloprid; Diaprepes abbreviatus; larvae; biological development; ecdysis; mortality
Abstract:
... The effect of imidacloprid on mortality and ecdysis of 1st instars of Diaprepes abbreviatus L. was determined using contact and oral exposure bioassays. The effect of contact exposure to imidacloprid on 1st-instar mobility was determined with and without a soil substrate. Greenhouse studies were conducted to determine possible systemic effects of different rates of imidacloprid applied as a soil d ...
DOI:
10.1093/jee/90.4.988

17. Effects of strain and access to males on female longevity, lifetime oviposition rate, and egg fertility of the Mexican fruit fly (Diptera: Tephritidae)

Author:
Mangan, R.L.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 945-954
ISSN:
0022-0493
Subject:
oviposition; longevity; Anastrepha ludens; fecundity; strain differences; mating frequency
Abstract:
... The effect of mating frequency on fertility and fecundity over the lifetime of an insect is a major factor influencing reproductive behavior. In this study I tested the relationship between oviposition, egg fertility, and longevity of individual females under conditions of single mating or multiple mating opportunities. Percentage of eggs that were fertile decreased after approximately wk of egg p ...
DOI:
10.1093/jee/90.4.945

18. Enhanced toxicity of sugar esters to the tobacco aphid (Homoptera: Aphididae) using humectants

Author:
Xia, Y.; Johnson, A.W.; Chortyk, O.T.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1015-1021
ISSN:
0022-0493
Subject:
Nicotiana glutinosa; sucrose esters; botanical insecticides; Myzus persicae nicotianae; Nicotiana tabacum; sprayers; toxicity; insect control; spraying; mortality; South Carolina
Abstract:
... Eighteen humectants were evaluated in the laboratory and in the field to determine if they enhanced the insecticidal activity of natural and synthetic sugar esters against the tobacco aphid, Myzus nicotianae Blackman. Sugar esters included 3 types of mixtures of sucrose esters and glucose esters extracted from Nicotiana gossei Domin, N. palmeri Gray, and N. glutinosa L., and 4 types of synthetic s ...
DOI:
10.1093/jee/90.4.1015

19. Honey bees (Hymenoptera: Apidae) in the United States that express resistance to Varroa jacobsoni (Mesostigmata: Varroidae)

Author:
Harbo, J.R.; Hoopingarner, R.A.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 893-898
ISSN:
0022-0493
Subject:
Apis mellifera; Varroa jacobsoni; population density; pest resistance; artificial selection; Michigan; Louisiana
Abstract:
... The purposes of this study were to select honey bees, Apis mellifera L., for resistance to varroa mites, Varroa jacobsoni Oudemans, and to find a probable cause for this resistance. As a genetic source, we assembled 8 colonies that we thought had potential for resistance to varroa. Queens and drones were propagated from this group to produce 43 instrumentally inseminated queens, each queen mated t ...
DOI:
10.1093/jee/90.4.893

20. Induced sterility in greenhouse whitefly (Homoptera: Aleyrodidae) treated with gamma radiation

Author:
Calvitti, M.; Govoni, C.; Buttarazzi, M.; Cirio, U.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 1022-1027
ISSN:
0022-0493
Subject:
Trialeurodes vaporariorum; gamma radiation; dosage; male fertility; female fertility; sterile insect technique
Abstract:
... A series of experiments have been carried out to establish the optimum dosage required for the radiosterilization of adults of Trialeurodes vaporariorum Westwood (Homoptera: Aleyrodidae) to be used for the sterile insect technique. Experimental data have shown that females are more radiosensitive than males at the 50-60 Gy dose range. In fact, full female sterility has been achieved with the dose ...
DOI:
10.1093/jee/90.4.1022