Field efficacy of Bacillus Thuringiensis compared with water Dispensible granules against Aedes Albopictus larvae

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Research Paper 01/06/2017
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Field efficacy of Bacillus Thuringiensis compared with water Dispensible granules against Aedes Albopictus larvae

Wajeeha Hameed, Dr NusratJahan, Ferhat Mehmood
J. Bio. Env. Sci.10( 6), 229-234, June 2017.
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Dengue fever (DF) and dengue hemorrhagic fever (DHF) are acute febrile diseases and transmitted to humans by the mosquito Aedes aegypti and Aedes albopictus. Dengue Fever, Dengue Hemorrhagic Fever and Dengue Shock Syndrome are among the major cause of morbidity and mortality in children in many endemic Asian and South American countries. It is regarded as major public health problem globally. In current study Bacillus thuringiensis var. israelensis Technical Powder (Vectobac 5000 ITU /mg) and WDG (Water dispersible granules) 3000 ITU mg were evaluated for the potential control of dengue vector, wild caught laboratory reared Aedes albopictus (early 4th instar) larvae in field conditions. Maximum residual activity of Bti TP was 35 days against 2.4ppm and minimum 14 days against 0.3ppm as compared to Bti WDG observed for 35 days against 0.26 ppm and minimum residual effect of 14 days with 0.05ppm.


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