Research Article

**Reduction in Haemocyte Mediated Immune Response in Danais chrysippus Following Treatment with Neem-Based Insecticides**

J.P. Pandey, R.K. Tiwari and Dinesh Kumar

The bioefficacy of some neem-based insecticides (NBIs) (neemazal, multineem and nimbecidine) was evaluated using fifth instar larvae and pupae of Danais chrysippus. All the NBIs caused reduction in total haemocyte count and much variation in their normal profile. This caused disintegration of haemocytes leading to reduction in immune response. In addition, the NBIs produced ecdysial stasis thereby resulting in the larval-pupal intermediates, pharate adults and deformed imagoes. A reduction in body weight of treated larvae was recorded too.

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J.P. Pandey, R.K. Tiwari and Dinesh Kumar, 2008. Reduction in Haemocyte Mediated Immune Response in Danais chrysippus Following Treatment with Neem-Based Insecticides. Journal of Entomology, 5: 200-206.

DOI: 10.3923/je.2008.200.206

URL: https://scialert.net/abstract/?doi=je.2008.200.206

Journal of Entomology

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Authors

J.P. Pandey

R.K. Tiwari

Dinesh Kumar

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Research Article

**Reduction in Haemocyte Mediated Immune Response in Danais chrysippus Following Treatment with Neem-Based Insecticides**

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