Journal of Biopesticide

Journal of Biopesticide

2010, Vol. 3, Issue1

SIDE EFFECTS OF A FEW BOTANICALS ON THE APHIDOPHAGOUS COCCINELLIDS


AUTHOR(S)
R. Swaminathan, Hansa Jat and T. Hussain

ABSTRACT

Side effects of botanicals viz., neem (Azadirachta indica A. Juss) leaves (NL), neem seed kernel extract (NSKE), eucalyptus oil (EO), neem oil (NO) and a fern were evaluated against aphidophagous coccinellids. Aphid infested barley leaves were treated in the field with the different concentrations of the botanicals (1.25, 2.5, 5 and 10; 0.625, 1.25, 2.5 and 5 per cent for NL, NSKE and fern and NO and EO, respectively) and provided as food (prey) to the coccinellid, Adonia variegata (Goeze). The side effects of neem seed kernal botanicals on the coccinellid recorded the highest mortality (73.33%) due to NSKE (10%) followed by (65.0% mortality) for neem oil (5.0%); and the post treatment effect (one day after) evinced maximum reduction in feeding (72.0 %) for NSKE (10%) followed by that recorded as 68 per cent for neem oil (5%).


DOI
https://doi.org/10.57182/jbiopestic.3.1.81-84

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