Compatibility of the microbial insecticide "Bactospeine" with some chemical insecticides for control of three lepidopterous pests in protected agriculture
1988
Al-Zubadi, A.N.O. (Ministry of Higher Education and Scientific Research, Al-Musaayab (Iraq). Institute of Agriculture Technology) | Ali, A.S.A. (Scientific Research Council, Baghdad (Iraq). Agriculture and Water Resources Research Centre, P.O. Box 2416) | Al-Dergazali, T.A. (Baghdad Univ., Baghdad (Iraq). Coll. of Agriculture)
Bactospeine, a commercial preparation of Bacillus thuringiensis kurestaki and some pesticides against pests of protected agriculture. Effective control obtained with mixtures of half of the recommended dosage of Bactospeine and Decis 2.5% Ec, Sevin 85% wp and Sumithion 50% Ec; when used against Spodoptera littoralis and S. exigua. Effectiveness was determined as Decis Sevin Sumithion. The effectiveness of mixtures against first instar Agrotis ipsilon determined as Sevin Devis Sumithion. When mixtures of the recommended dosages of Bactospeine and some pesticides of sucking pests was used, the compatibility against S. littoralis and S. exigua was graded as Brimor Acrex Malathion; Acrex Malathion, Brimor, respectively. Good control of A. ipsilon was obtained with these mixtures too. The antagonistic effect of Bactospeine on some aphicides was determined as Brimor Decis Malathion Sumithion. No significant effect of Bactospeine was observed on the effectiveness of Acrex against spidermites. The compatibility of Bactospeine with these pesticides depended on the type of insect species, chemical structure of pesticide and the method used
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