Insect growth regulatory activity of naturally occurring quinones and their derivatives in Dysdercus koenigii Fabr. (Hem., Pyrrhocoridae) |
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| Authors: | S. Banerjee,S. Magdum,G. P. Kalena,& A. Banerji |
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| Affiliation: | Department of Zoology, University of Sagar, Sagar, India;Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai (Bombay), India |
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| Abstract: | Plumbagin, a naphthoquinone occurring in the plants belonging to Plumbago sp. is known to have insect growth disrupting activities. In the present study, a comparative evaluation of bioactivities of related naphthoquinones, juglone and menadione and benzoquinones, 2,6-dimethylbenzoquinone and 2,3,6-trimethylbenzoquinone along with 2,6-dimethylhydroquinone have been undertaken using Dysdercus koenigii . The LD50 values of the compounds showed wide variation. Although all the test compounds disrupted the normal growth at sublethal doses, 2,6-dimethylbenzoquinone and menadione showed activity at low doses. |
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