Pear psylla, plum curculio, plant bugs, codling moth, Oriental fruit moth, mites. Alternately use Imidan and Mitac in cover sprays for improved control. Where psylla persist or increase, shorten the interval between two successive cover sprays to 5 to 7 days. Azinphos-methyl, Lannate, are not effective in controlling psylla. If psylla is not a problem, reduce rates by 25 percent.
Control is based on control of aphids and pear psylla.
Apply the first cover spray 10 days after petal fall and the remaining cover sprays at 14-day intervals. Pesticide recommendations for Pears, Petal Fall, First through Fifth Covers. Use one or more of the following insecticides if green fruitworm, green apple aphid, tarnished plant bug, plum curculio, San Jose scale, or mites are a problem. We suggest that Benlate not be used between the first and fifth cover sprays. This material may also be applied after infection.