Split-Application of Bacillus thuringiensis israelensis to Control Asian Tiger Mosquito, Aedes albopictus (Skuse) (Diptera:Culicidae) without Reducing Lettuce Head Weight in Non-Circulating Hydroponics
Split-Application of Bacillus thuringiensis israelensis to Control Asian Tiger Mosquito, Aedes albopictus (Skuse) (Diptera:Culicidae) without Reducing Lettuce Head Weight in Non-Circulating Hydroponics
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Date
2001-05
Authors
Furutani, S.C.
Arita-Tsutsumi, L.
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Hawaiian Entomological Society
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Abstract
Vectobac G (Bacillus thuringiensis israelensis) application at 1.08 and 0.54g/
m2 to subirrigated pot and suspended forestry tube methods of non-circulating hydroponics in an unreplicated experiment greatly reduced numbers of Asian tiger mos-
quito, Aedes albopictus (Skuse) (Diptera: Culicidae), larvae and pupae compared to
non-treated controls. Both Vectobac G rates, however, reduced lettuce head weight and root growth compared to the control. When the 0.54/m2 rate was applied as a split-application (0.27g/m2 applied 2 weeks apart), A. albopictus larvae and pupae were still controlled throughout the lettuce cropping cycle and lettuce head weight was not significantly affected. Therefore, the split-application of Vectobac G may be an effective strategy to control mosquitos breeding in commercialized non-circulating hydroponic lettuce operations in Hawaii.
Description
Scientific note.
Keywords
Aedes albopictus,
application rate,
application timing,
Bacillus thuringiensis subsp. israelensis,
crop yield,
hydroponics,
Lactuca sativa,
lettuce,
mosquito control
Citation
Furutani SC, Arita-Tsutsumi L. 2001. Split-application of Bacillus thuringiensis israelensis to control Asian tiger mosquito, Aedes albopictus (Skuse) (Diptera:Culicidae) without reducing lettuce head weight in non-circulating hydroponics. Proc Hawaiian Entomol Soc 35:115–118.
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4 pages
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