Q: Some of the peach trees I planted had bacterial perforation disease. The fruits were all black spots. How to prevent it?
A: Agricultural streptomycin is generally used to prevent bacterial perforation. What needs to be reminded is that the quality of agricultural streptomycin in the pesticide market is uneven, and even some products have no content. With such a product, the effect of prevention and control is poor or has no control effect. Therefore, it is necessary to select products with reliable quality. Prevention. In addition, Taoyuan enhances fertilizer and water management, enhances tree vigor, and enhances resistance to disease. Increase the application of organic fertilizers and phosphorus and potassium fertilizers, reduce the amount of nitrogen fertilizers, and pay attention to the application of trace elements. Reasonably trimmed to make Taoyuan airy and light. Combine pruning, cut off diseased branches, remove fallen leaves, and burn them together. Before spraying, 5 Baumite lime sulfur or 45% lime sulfur crystals were sprayed to clear the garden. After germination, spray 20% Saico WP 1000 times solution, or 50% super copper water-soluble powder 1500 times solution + 3% Kecong Kang WP 1000 times solution. After bagging, 33.5% of Hisunbi Green 2x Suspension can be selected as 2000 times, or 50% Super Copper Water-Soluble Powder 1500 times, and 3% of Keconkang WP can be used as 1000 times to prevent and cure. Protective fungicides are used in combination. At the same time, we must also pay attention to pest control to reduce the spread of the virus.
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