After spring winter, the pests are about to revive and invade the trees. In this period, the prevention and control of pests and diseases can greatly reduce the annual base number of pests and diseases, and reduce the prevention and treatment work. Therefore, it must be carried out carefully.
(1) Complete scraping of old curled bark and cracks, and clean up the remaining leaves and other foreign matter in the garden.
(2) Wound-prevention and rot control of the rot on the tree rot on the tree, after the winter cut the larger cut, saw mouth, smear agent. 10 Baumide lime sulfur or 2-3 times the chlorpyrifos emulsion and other pesticides can be used; it can also be applied with mud-free contaminated mud, plus plastic film dressing methods.
(3) Precisely spraying the tree body before spraying buds, spraying 3-5 Baume degree lime sulfur agent, which can widely prevent rot, powdery mildew, scale insect, leafhopper and other pests and diseases; Before flowering, spray cloth 0.5 Baume degree lime sulfur or 600-800 times 50% carbendazim WP 1000 times 10% polyoxin and other agents to control flower rot and mycotic disease, spray 800-1000 times 0.3% matrine Aqueous agent or 2500-3000 times 2.5% 2.5% Kung Fu EC and other agents, control leafhoppers, gold turtles and other pests.
(4) Do a good job of spring frost prevention. It is necessary to pay close attention to the weather forecast and, in the event of frost, timely implement preventive measures such as watering the orchard, fumigation, and spreading anti-frost cream on the trees. Avoid frost damage or young fruit, resulting in annual output loss.
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