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Studies on resistance to insecticides. III. Resistance levels of six field strains of the Egyptian cotton leafworm Spodoptera littoralis (Boisd) to certain insecticides in two cotton seasons



Studies on resistance to insecticides. III. Resistance levels of six field strains of the Egyptian cotton leafworm Spodoptera littoralis (Boisd) to certain insecticides in two cotton seasons



Alexandria Journal of Agricultural Research 36(3): 327-340



A survey carried out over 2 cotton seasons (1988 and 1990) in Egypt on the resistance of larvae of Spodoptera littoralis to 6 different insecticides, showed that the noctuid was most resistant to fenvalerate and chlorpyrifos.

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Accession: 002702497

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