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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effects of neem seed derivatives on behavioral and physiological responses of the Cosmopolites sordidus (Coleoptera: Curculionidae)
Journal of Economic Entomology, Volume 94, No. 2, Year 2001
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Description
Both in a choice and multi-choice laboratory tests, fewer adults of the banana root borer, Cosmopolites sordidus (Germar), settled under the corms of the susceptible banana "Nakyetengu" treated with 5% aqueous extract of neem seed powder or cake or 2.5 and 5% emulsified neem oil than on water-treated corms. Feeding damage by larvae on banana pseudostem discs treated with 5% extract of powdered neem seed, kernel, or cake, or 5% emulsified neem oil was significantly less than on untreated discs. The larvae took much longer to locate feeding sites, initiate feeding and bore into pseudostem discs treated with extract of powdered neem seed or kernel. Few larvae survived when confined for 14 d on neem-treated banana pseudostems; the survivors weighed two to four times less than the larvae developing on untreated pseudostems. Females deposited up to 75% fewer eggs on neem-treated corms. In addition, egg hatching was reduced on neem-treated corms. The higher the concentration of neem materials the more severe the effect. © 2001 Entomological Society of America.
Authors & Co-Authors
MUSABYIMANA, T.
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Canada, St Jean-sur-richelieu
Saint-jean-sur-richelieu Research and Development Centre
Saxena, Ramesh C.
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Kairu, Eunice Waitherero
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Kenya, Nairobi
Kenyatta University
Ogol, Callistus K.P.O.
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Kenya, Nairobi
Kenyatta University
Khan, Zeyaur Rahman
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Statistics
Citations: 76
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1603/0022-0493-94.2.449
ISSN:
00220493
Research Areas
Environmental
Participants Gender
Female