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Feeding and Life History of Spodoptera exigua (Lepidoptera: Noctuidae) on Different Host Plants
Abstract Consumption rates, development times, and life table parameters of the beet armyworm, Spodoptera exigua (Hübner), were determined on five host plants: cabbage, Brassica oleracea capitata L;…
Interactions Among Two Species of Eretmocerus (Hymenoptera: Aphelinidae), Two Species of Whiteflies (Homoptera: Aleyrodidae), and Tomato
Eretmocerus eremicus attack both whiteflies efficiently and it can be used as a single species for whitefly management.
Effects of selected insecticides on Cotesia plutellae, endoparasitoid of Plutella xylostella
Effects of field dosages of selected insecticides to Cotesiaplutellae (Kurdjumov) (Hymenoptera: Braconidae), a larval endoparasitoid of Plutella xylostella L. (Lepidoptera): Plutellidae were investigated under laboratory conditions, with one exception; femalelongevity was significantly reduced in the indoxacarb treatment.
Toxicity, persistence and efficacy of indoxacarb and two other insecticides on Plutella xylostella (Lepidoptera: Plutellidae) immatures in cabbage
Results from laboratory bioassays indicate that indoxacarb was highly toxic to P. xylostella larvae through food ingestion, and was as effective as spinosad, and significantly more effective than emamectin benzoate.
Selectivity of insecticides to Encarsia pergandiella (Hymenoptera: Aphelinidae), an endoparasitoid of Bemisia argentifolii (Hemiptera: Aleyrodidae)
A wide range of potentially selective insecticides were tested against eggs, first and third instar larvae, pupae and adults, using a pyrethroid, Capture" (20 g bifenthrin/1 EC), for comparison, and residues on nymphs exposed to adult parasitoids reduced parasitization more than other materials tested, and were most toxic to all parasitoid stages.
Resistance of Aphis gossypii (Homoptera: Aphididae) to Fenvalerate and Imidacloprid and Activities of Detoxification Enzymes on Cotton and Cucumber
- K-Y. Wang, T-X. Liu, C.-H. Yu, X-Y. Jiang, M. Yi
- Biology, MedicineJournal of economic entomology
- 1 April 2002
Both resistant strains of A. gossypii were more resistant to fenvalerate on cotton than on cucumber, whereas their susceptibility to imidacloprid on cotton and cucumber were not significantly different.
A natural recombinant PRRSV between HP‐PRRSV JXA1‐like and NADC30‐like strains
It is demonstrated that recombination is responsible for the enormous genetic diversity and pathogenicity variance of the NADC30-like PRRSV in China and provides a theoretical basis for developing a more reasonablePRRSV control and prevention strategy.
Effects of Three Insect Growth Regulators on Encarsia formosa (Hymenoptera: Aphelinidae), an Endoparasitoid of Bemisia tabaci (Hemiptera: Aleyrodidae)
The leaf residues of the IGRs had no appreciable effects on adults, whereas the residues on glass vial caused significantly lower adult survival than on plant leaves, and the residues of pyriproxyfen and fenoxycarb slightly reduced parasitism as compared with buprofezin and controls.
Impacts of spinosad and λ-cyhalothrin on spider communities in cabbage fields in south Texas
It is concluded that spinosad was more compatible with spiders on cabbage compared to λ-cyhalothrin and that this information should be used when developing insecticide resistance management strategies.
Susceptibility of immature stages of Chrysoperla rufilabris (Neurop., Chrysopidae) to pyriproxyfen, a juvenile hormone analog
Pyriproxyfen had significant effects on development for all immature C. rufilabris that successfully developed to adults with variations among the developmental stages and concentrations, indicating the third instar was the most vulnerable stage.