Laboratory Bioassay of Beauveria Bassiana and Spinosad for Control of Grasshoppers
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Abstract Trials were con ducted with adult, field collected migratory grasshoppers to determine susceptibility to ingestion exposure to Beauveria bassiana Strain GHA (BotaniGard WP) or spinosad (Conserve SC). Grasshoppers were confined, 8 per petri dish, with 5 petri dishes used per treatment. Alfalfa was dipped in serial dilutions (0.25X) of the test materials, allowed to air dry and then placed with grasshoppers. After the originally treated foliage was consumed, untreated foliage was used to maintain grasshoppers in all treatments. Mortality was assessed at 24 hour intervals for six days following exposure.
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2014 ◽
Vol 77
(1)
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pp. 87-93
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2004 ◽
Vol 50
(3)
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pp. 221-224
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2016 ◽
Vol 44
(2)
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pp. 466-471
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