Hybrid hazelnuts have fewer pests and diseases, and pests are mainly insects, and diseases are mainly powdery mildew.
1. Prevention and control of worms
Elephant worms, also known as hazelnuts, hazelworms. The adult replenishment period and the initial period of spawning before spawning, that is, from mid-June to early July, kill the adults with a solution of 60% DM mixture 0.33%, spraying 2 to 3 times, with an interval of 15 days.
2. Prevention of Powdery Mildew
Strengthen management and improve the resistance of the tree itself. Diseased plants were found and treated in time. After falling leaves in autumn, the leaves and diseased plants were concentrated and burned. After autumn hazel deciduous spray lime sulfur mixture, the second year of May to early June spraying hazel with 25% triadimefon 1000 times, or 50% carbendazim wettable powder 800 ~ 1000 times, Spray once every 7-10 days, 2 or 3 times to obtain control effect.
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