Exploitation of Metarhizium anisopliae (Metch.) Sorokin for management of gall weevil Alcidodes colaris Pascoe in pigeonpea
DOI:
https://doi.org/10.53550/jfl.v19i1.2290Keywords:
Alcidodes colaris, Gall weevil, Metarhizium anisopliae, Pigeonpea, ManagementAbstract
Field experiments were conducted in Kharif 2001 and 2002 wet season to verify the performance of Metarhizium anisopliae isolate (Ma2) @ 2 x 1012, 1 x 10" and 5 x 10" conidia per ha vis- à-vis recommended insecticides (chlorpyriphos 400 g a.i. ha and endosulfan @ 700 g a.i. ha'') and untreated check against pigeonpea gall weevil at University of Agricultural sciences, Dharwad. Drenching of M. anisopliae @ 2 x 10" conidia per ha at 15 days after germination did not lag much behind the chemical toxicants in pest suppression. Efficacy came at par with chemical toxicants at 30 days after treatment. The yield difference between fungus and chemicals drenching was only four per cent.
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