Comparative efficacy of neemjeevan and monocrotophos against life stages of Dysdercus koenigii Fabr.
2011
Fakhri, M. Sadre Alam | Ansari, M. Shafiq | Jamal Khowaja | Ali, Haidar
Efforts were taken to compare the toxicity of neemjeevan and monocrotophos on the biology of Dysdercus koenigii. Three different concentrations i.e. 0.01, 0.02 and 0.04% of neemjeevan (0.30EC) and 0.001, 0.002 and 0.004% of monocrotophos (Hilcron, 36 SL), were topically applied on the thorasic terga of 4th nymphal instar by the help of micro-applicator and the observations were made up to longevity of mated and unmated adults. Mortality was dose dependent in both cases; however monocrotophos showed higher mortality than neemjeevan. Higher concentration of monocrotophos showed highest mortality i.e. 48.33 where in case of neemjeevan it was 41.66.
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