“With the tolerant varieties, you’re very much thinking about managing the spread of the vector [the aphids]. You still have a source of the virus in the plants. With resistant varieties, there’s a ...
The T-Sum test indicated a high risk of aphid flight in the last week of October, so an insecticide was applied on 5 November. The T-sum assessment is calculated from the accumulated average daily ...
But be aware that the edges must be secured to keep pests from reaching your plants. Use boards, rocks, or landscaping staples to hold down the fabric. Insecticidal soap works by using fatty acids to ...