At present, the vegetables in autumn stubble are in the fruitful period. Pruning and pruning are the focus of daily management. So how to properly pruning and pruning can reduce the incidence of disease?
The first is to avoid pruning and pruning on cloudy days. When the branches are pruned and pruned on cloudy days, the wound is difficult to heal. Pathogens take the opportunity to infect and enter the stem from the wound, resulting in a large area of ​​stem rot. For overgrown plants, when the sky is cloudy, you can only perform the fall operation to reduce the wounds caused by mechanical damage. Pay attention to the weather forecast, and choose to conduct it in continuous fine weather, leaving enough time to promote wound healing.
The second is not pruning and pruning within 1-2 days after watering. After watering, the plant has a high water content, and the injury caused by pruning and pruning is large, and the wound is not easy to heal. Therefore, pruning and pruning should be carried out on a sunny morning after 2-3 days.
Third, pruning and branching may wish to stay for a while. Do not completely dredge the petiole or melon, but leave a piece of residue, such as zucchini, tomatoes, cucumbers and other vegetables with high water content and large wounds on the stem, which can be left about 3cm. At the same time, do not use your nails to cut off the branches. The correct way is to cut off the branches without touching the wound directly to avoid spreading the disease. At the same time, when removing the lower leaves of tomatoes, if the branches and leaves are supporting the ears, a little longer can be left to support the ears.
Fourth, timely pilling to prevent diseases after pruning. After pruning and pruning, coat the wound with 300 times of nail rest, 300 times of copper rosinate, and 1000 times of ethylene to prevent the infection of pathogenic bacteria and promote the natural shedding of petiole delamination as soon as possible. Vegetables such as peppers and eggplants with many leaves and small wounds should be sprayed with azoxystrobin, chlorothalonil, or DT immediately after pruning, focusing on the stalks to prevent disease.
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