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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Compatibility of metarhizium anisopliae isolate ICIPE 69 with agrochemicals used in french bean production
International Journal of Pest Management, Volume 58, No. 2, Year 2012
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Description
The compatibility of the Metarhizium anisopliae (Metschnikoff) Sorokin isolate ICIPE 69, which is being developed as a biopesticide for the control of Frankliniella occidentalis Pergande, was assessed under laboratory conditions with 12 agrochemicals including 5 insecticides (thiamethoxam, L-cyhalothrin, imidacloprid, chlorpyrifos, diazinon), 1 botanical insecticide (azadirachtin), 2 acaricides (abamectin, spiromesifen), and 3 fungicides (carbendazim, copper hydroxide, probineb) used in French bean production. The insecticides abamectin and imidacloprid were highly compatible with M. anisopliae; thiamethoxam was compatible, whereas azadirachtin and L-cyahalothrin were toxic to the fungus, adversely affecting vegetative growth and sporulation. The acaricide spiromesifen was moderately toxic, while the fungicides carbendazim, probineb, and copper-hydroxide were very toxic to the fungus. The combination of the M. anisopliae isolate ICIPE 69 with imidacloprid or thiamethoxam did not result in any synergistic or antagonistic effects to larvae of F. occidentalis. However, the combination of lower concentrations of the fungus with thiamethoxam resulted in a shorter lethal time (LT50) compared with individual treatments. Our results suggest that application of the fungus with agrochemicals has to be assessed carefully prior to any field intervention. © 2012 Taylor & Francis.
Authors & Co-Authors
Niassy, Saliou
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Kenya, Nairobi
Jomo Kenyatta University of Agriculture and Technology
Maniania, Nguya Kalemba
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Subramanian, Sevgan
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Gitonga, M. L.
Kenya, Nairobi
Jomo Kenyatta University of Agriculture and Technology
Maranga, Rosebella O.
Kenya, Nairobi
Jomo Kenyatta University of Agriculture and Technology
Obonyo, A. B.
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Ekesi, Sunday
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Statistics
Citations: 26
Authors: 7
Affiliations: 2
Identifiers
Doi:
10.1080/09670874.2012.669078
ISSN:
09670874
e-ISSN:
13665863
Research Areas
Environmental
Study Design
Randomised Control Trial