Prevention and cure of pear tree scab
1. Strengthen orchard management. Pear trees grow weak, easily infected by bacteria. Therefore, increasing fertilization materials, especially organic fertilizers, can increase tree vigor and increase disease resistance.
2. Chemical control. Should be sprayed before the flowering of pears and about 70% of the flowers to protect the inflorescence, young shoots and new leaves. Afterwards, spraying once every 15 to 20 days according to the rainfall situation, and spraying 4 times in succession. The first general spraying was in mid-May (after the white pear pods fall off, the initial stage of disease), the second time in mid-June, the third time from the end of June to the beginning of July, and the fourth time in early August . Pharmacy generally use 12.5% ​​tepazole or diniconazole wettable powder 2000 ~ 2500 times, 40% Fuxing 8000 times better control effect.
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