Slowing down the treadmill: How to manage insecticide resistance in Ontario vegetable pests.
Citation
Scott, I.M. 2018. Slowing down the treadmill: How to manage insecticide resistance in Ontario vegetable pests. Invited presentation at the Ontario Fruit and Vegetable Convention, Niagara Falls, ON, February 22, 2018.
Résumé en langage clair
The presentation was given as an invited talk at a vegetable fruit grower convention and was part of a resistance session. I wanted to highlight some of the on-going issues with resistance for 3 specific pests, the cabbage root maggot, the two-spotted spider mite and the Colorado potato beetle. Insecticide resistance has been found in populations of all 3 species in Ontario crops, and monitoring is a key tool for detecting the problem before it gets out of hand. This information is useful to growers and industry and plays just one component in a resistance management strategy.
Résumé
Many horticultural crops grown in Ontario play an important role in agricultural economy. Cabbage, greenhouse tomato and potatoes combined contribute approximately half a billion dollars to the economy annually.Unfortunately insect pests affect the yield of these crops and are the target of management programs. Two of these problematic pests of these crop are also two of the top global pests on the list of those that are resistant to insecticides. Two-spotted spider mite’s have been determined to be resistant to over 95 active ingredients while the Colorado potato beetles is resistant to over 56. Chemical pesticides have been the mainstay, but public perception and environmental concerns have led to restrictions and demands for safer products. Pest management practices must continuously adapt to the changing pressures of native and invasive insect species. this presentation will highlight some of the continuing problems with insecticide resistance in Ontario and potential strategies to mange it.