The Israel Cotton IPM-IRM Strategy–Retrospect and Prospect
Mar 6, 2019
The Israeli IPM-IRM strategy, introduced in cotton in 1987, is focused primarily on controlling the whitefly, Bemisia tabaci. These and other cotton pests are controlled with novel insecticides and alternative control measures such as sex disruption against the pink bollworm (Pectinophora gossypiella), and by natural enemy encouragement. A rotation scheme in which each insecticide is used once during one pest-generation, followed by alternation with another insecticide with a different mode of action, has been established. Extensive resistance monitoring programmes are conducted. Baseline bioassays for susceptibility of key pests to the most important novel insecticides were carried out prior to the resistance monitoring in field populations. The rational use of insecticides has resulted in maintaining the susceptibility of the pests to the various groups of insecticides and substantially reduced insecticide applications. After 11 years of the IPM-IRM strategy, changes in the susceptibility to some conventional and novel insecticides have been observed. Modifications to the strategy that includes Bt transgenic cotton are being considered.