MySheen

Measures for control of black spot of walnut

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, The pathogen of walnut black spot generally overwinters in shoots or buds, and the bacterial liquid secreted by Yanchun mainly harms young fruits, leaves and twigs by wind and rain. Management methods: 1. Overwintering management. After deciduous leaves, tree trunks and branches are smeared to protect the general from spreading germs on the tree, heat preservation, disinfection and frost prevention. Spray tree protection at the same time.

The pathogen of walnut black spot generally overwinters in shoots or buds, and the bacterial liquid secreted by Yanchun mainly harms young fruits, leaves and twigs by wind and rain. Management methods: 1. Overwintering management. After deciduous leaves, tree trunks and branches are smeared to protect the general from spreading germs on the tree, heat preservation, disinfection and frost prevention. At the same time, the general of tree protection was sprayed to disinfect the whole garden. 2. Prevention and treatment of virus. For the diseased trees, the whole garden should be sprayed with new high-fat film in time to form a protective film to enhance the efficacy and prevent the spread of germs through wind and rain. 3. Wound management. For some trimmed mouth, wound should timely smear callus anticorrosive film, protect the wound, prevent bacteria invasion, Rain Water pollution.

 
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