Use Herbicides only when Needed - Pesticides should be used as part of an integrated control program and not as the sole method of pest control. The potato grower should make the best use of cultural practices to control pests and only apply a herbicide if it is economically justified. Keep Pesticide Application Records - Records are necessary to make sensible decisions on pesticide rotation and to evaluate the probability of developing resistance. A large percentage of potatoes are produced on rented or traded land and it is equally important that both parties keep accurate records. Neither party can ignore the pattern of pesticide use if the development of resistant pests is to be delayed.
Detailed records provide a better chance of determining the cause of pesticide failure.
Sample record forms can be obtained through your local Manitoba Agriculture and Food Representative . The Insecticide Selector Chart can be used to choose an appropriate insecticide. Detailed records provide a better chance of determining the cause of pesticide failure.