Journal of Biopesticide

Journal of Biopesticide

2010, Vol. 3, Issue1

IMPACT OF INSECTICIDES AND BOTANICALS ON POPULATION BUILD-UP OF IMPACT OF INSECTICIDES AND BOTANICALS ON POPULATION BUILD-UP OF PREDATORY COCCINELLIDS IN MULBERRY PREDATORY COCCINELLIDS IN MULBERRY


AUTHOR(S)
N. Sakthivel* and S. M. H. Qadri

ABSTRACT

A field experiment was conducted to study the impact of application of certain commonly used insecticides and botanicals in mulberry fields on the population built-up of predatory coccinellid beetles. The results revealed that the population of coccinellid beetles was drastically reduced 1 day after spray (DAS) in the plots treated with dichlorovos (88.63%), followed by phosalone (78.56%), dimethoate (72.19%) and metasystox (68.97%) whereas in the plots treated with pungam oil there was least reduction (29.72%) followed by neem oil (35.20%). The predators regained significant built up of their population at 5 DAS in plots treated with pungam oil and 10 DAS in the plots treated with neem oil, dichlorovos and phosalone whereas it continued to be at reduced levels (44.35%) in dimethoate followed by metasystox (32.61%) treated plots even at 10 DAS.


DOI
https://doi.org/10.57182/jbiopestic.3.1.85-87

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