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Laboratory and field evaluation of a nuclear polyhedrosis virus of the soybean looper pseudoplusia includens



Laboratory and field evaluation of a nuclear polyhedrosis virus of the soybean looper pseudoplusia includens



Journal of the Georgia Entomological Society 15(2): 194-199



Susceptibility of P. includens (Walker) larvae to a nuclear polyhedrosis virus (NPV) differed between larval stages. Larvae in the 3rd stage were most susceptible to NPV infection. The LT50 [median lethal time] at the LC50 dosage was similar for all larval stages and ranged from 6.9 days for 4th stage larvae to 8.1 days for 2nd stage larvae. The mean LT50 for all stages averaged 7.5 days. In field tests, larval numbers of P. includens were significantly reduced in all NPV and methomyl application rates; significantly greater yield increases were detected only for methomyl treated plots.

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Accession: 005787369

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