Gelatin Capsules To Enhance The Efficacy Of Lecanicillium lecanii Against Myzus persicae
DOI:
https://doi.org/10.55446/IJE.2021.297Keywords:
Lecanicillium lecanii, capsule formulations, gelatin, virulence, spore, talc powder, Myzus persicae, mortality, storage, period, refrigeration, pot cultureAbstract
Evaluation of gelatin capsule-based formulations of indigenous isolate of Lecanicillium lecanii (Zimm.) Zare and Games was carried out at the College of Horticulture, Bagalkot during 2018-19. The gelatine capsules filled with different ratios of spore and talc powder (1:0, 1:1, 1:2 and 1:3) were evaluated in the laboratory for their efficacy against aphid Myzus persicae. The results indicate that equal quantity of spore and talc powder showed better efficacy than other two combinations and next best to spore alone. The gelatine capsules containing the spore powder alone though proved better with maximum mortality when it was used fresh and immediately after their formulation; the efficacy decreased drastically after 30 days after storage. Evaluation of their storability, under varying storage conditions revealed that refrigerated condition is the best in maintaining the virulence of the spore after four months of storage period. The pot culture experiment revealed that significantly more mortality of aphid was obtained with gelatine capsules formulations of local isolate of L. lecanii as compared to commercial formulation.
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