caa a22 4500 386375720 CHVBK 20180307112017.0 cr unu---uuuuu 161130e198906 xx s 000 0 eng 10.1017/S1742758400003568 doi S1742758400003568 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400003568 Effect of water hyacinth leaf extract on mortality, growth and metamorphosis of certain pests of stored products [Elektronische Daten] Petroleum ether extract of Eichhornia crassipes (Mart) Solm. was evaluated for its biological activity against Tribolium castaneum (Herbst), Sitophilus oryzae (L.), Callosobruchus maculatiti (F.) and Corcyra cephalonica (Stainton). The crude extract included in the diet of insects retarded development and caused mortality in the fourth instar larvae of T. castaneum and C. cephalonica. Cuticle melanization in patches were observable in C. cephalonica larvae. High mortality of adult C. maculatus occurred in insects confined to the treated diet as well as in insects exposed to treated surfaces. The extract did not show any toxicity to adult S. oryzae. Copyright © ICIPE 1989 Water hyacinth nationallicence Eichhornia crassipes nationallicence metamorphosis nationallicence Tribolium castaneum nationallicence Corcyra cephalonica nationallicence Sitophilus oryzae nationallicence Callosobruchus maculatus nationallicence melanization nationallicence Rani P. Usha Entomology and Toxicology Division, Regional Research Laboratory, Hyderabad 500 007, India Jamil Kaiser Entomology and Toxicology Division, Regional Research Laboratory, Hyderabad 500 007, India International Journal of Tropical Insect Science Cambridge University Press 10/3(1989-06), 327-332 1742-7584 10:3<327 1989 10 JTI https://doi.org/10.1017/S1742758400003568 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400003568 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rani P. Usha Entomology and Toxicology Division, Regional Research Laboratory, Hyderabad 500 007, India NATIONALLICENCE 700 1- Jamil Kaiser Entomology and Toxicology Division, Regional Research Laboratory, Hyderabad 500 007, India NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/3(1989-06), 327-332 1742-7584 10:3<327 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge