In the winter season, powdery mildew is thoroughly cleaned out, eradicated the source of overwintering bacteria, properly applied fertilizer, and adequate irrigation to prevent the body from being greedy and prolonged and reduce disease occurrence. Chemical control can be sprayed with 0,3 degree lime sulfur, or 50% thiophanate-methyl wettable powder 1000 times at the early stage of disease.
Branch blight cut off diseased branches and burned, remove and reduce the source of disease, strengthen cultivation management, increase tree potential and increase organic fertilizer, promote tree robustness, and increase resistance to disease. In the winter, do a good job of anti-freezing, prevent the body from freezing, reduce the incidence, prevent pests in time, avoid all kinds of wounds, and reduce the chance of germ invasion. In addition, when the trunk or large branches of the disease, it is necessary to promptly scrape the lesions, can be treated with 10% of onion oil in the diseased part.
The rot disease strengthens integrated management, increases organic moon feed, improves soil, prunes reasonably, increases tree vigor, and enhances resistance to disease. When the onset of spring peaks, the lesions are promptly scraped and the diseased bark and diseased branches are destroyed. After scraping, a 100% solution of Formamide or 5 to 10 degrees lime sulfur should be applied to the wound. The key is that the trunk must be painted white before winter to prevent freezing damage.
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