Phytoparasitica (2002) 30, 216-217
A.R. Horowitz and I. Ishaaya (2002)
Insecticide resistance management programs: Their importance in controlling insect pests
Phytoparasitica 30 (2), 216-217
2nd Israel - Japan Workshop - Ecologically Sound New Plant Protection Technologies, Sept. 1 - 6, 2001, Tokyo, Japan
Abstract: The Israeli insecticide resistance management (IRM) strategy, introduced in cotton in 1987 as part of an integrated pest management (IPM) program, is focused primarily on controlling cotton pests with novel insecticides along with alternative control measures such as sex disruption and natural enemy encouragement. Each insecticide is used once during a crop season, followed if required by another insecticide with a different mode of action. There has been extensive resistance monitoring throughout this period to detect any resistance arising in key cotton pests despite these IRM measures. The rational use of insecticides has led to substantial reductions in insecticide applications, and in general has maintained the susceptibility of the pests to the various groups of insecticides. However, after 13 years of the IPM-IRM strategy, some changes in resistance to conventional and novel insecticides have been observed. Modifications to the strategy, which include the use of BT-transgenic cotton, are being considered. At present, similar strategies are being developed and implemented area-wide for various crops in Israel. The history of resistance development to pyriproxyfen by the whitefly Bemisia tabaci (Gennadius) is a case in point. This provides a striking example of the genetic, ecological and operational factors that combine to promote resistance, even within a well-defined IRM strategy. Pyriproxyfen, a juvenile hormone mimic, normally shows outstanding effectiveness against B. tabaci field populations. The dynamics of pyriproxyfen resistance in B. tabaci have been studied most intensively in cotton fields and greenhouses in Israel. High resistance to pyriproxyfen evolved one year after its introduction in a greenhouse floriculture, after successive applications. After 9 years of pyriproxyfen use in cotton fields with only one application per season, a moderate to high level of resistance was observed in some localities. As a consequence, pyriproxyfen use in high-resistance localities has ceased, but in areas with low frequencies of resistance, cotton growers have continued to achieve reasonable control of B. tabaci with pyriproxyfen. The absence of pyriproxyfen applications in some cotton fields, led to lowered resistance levels in 1998-2000.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Abraham Rami Horowitz, Isaac Ishaaya
Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Bemisia tabaci | Israel |
