Preharvest COS Spray Protects Plums from Black Spot Disease

Preharvest COS Spray Protects Plums from Black Spot Disease

Plum (Prunus domestica L.) is an important economic fruit in Xinjiang. However, it often suffers from postharvest black spot disease caused by Alternaria alternata. The fruit’s climacteric nature and sensitivity to mechanical damage increase its vulnerability during harvest and handling. Latent Infection by A. alternata A. alternata can infect fruit without showing symptoms. It penetrates …

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