When this disease occurs, brown round lesions appear on young foliage, and leaves, buds, and branches gradually wilted and darken. The cortex of the branches is dry and dehiscent. The body's transmission is blocked, and the diseased part expands upwards, downwards, and to the interior. The plant died. In the year of April and September of 910, the incidence was the heaviest. Summer is hot, rainy, hot and spreads quickly. Pathogens are semi-known bacteria.
Control methods:
1, increase organic fertilizer and phosphorus, potash fertilizer.
2, rational watering, keep the soil moist.
3, timely cut sick leaves and leaves ???
4, diseased plants, spraying 50% carbendazim WP 800 times; or 65% zein zinc WP 500 times liquid control.
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