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Title: 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 
Author: Furutani, S.C.; Arita-Tsutsumi, L.
Date: 2001-05
Publisher: Hawaiian Entomological Society
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.
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.
Pages/Duration: 4 pages
ISSN: 0073-134X
Keywords: Aedes albopictus, application rate, application timing, Bacillus thuringiensis subsp. israelensis, crop yield, hydroponics, Lactuca sativa, lettuce, mosquito control

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