Apple tree rot disease physical control method
Apple rust, also known as apple scab, harms young green leaves such as young leaves, petioles, shoots, young fruit, and fruit stalks. Apple trees are harmed by them, causing fallen leaves, fruit drop, and shoots to break. With more and more planting of cypresses in urban afforestation and afforestation of barren hills in recent years, cypress is the intermediate host of apple rust. The disease has a clear upward trend.
Control methods:
Use salt sauce to prevent and treat 2.5% of edible salt, 2% of soy sauce, 1% of binder (flour can be used), add 50 kg of water, stir well, boil for 10-15 minutes, and put it into the bucket for use (if The remaining salt sauce can be sealed and stored in one use. After removing the affected area, apply evenly with a brush and apply it once every 5 days. Apply 2-3 times.
Use the vinegar to prevent the sickle from being scratched with a knife, then brush the vinegar with a brush and brush it on the new bowl. Brush once every 7 days, and brush it 3-4 times to cure it. If vinegar is weighed in advance, the control effect will be better.
Use alkaline water to prevent alkali from 1 part and add 4 parts of water. After stirring well, use a brush to brush directly on the trunk. After the brush, the sickness is obviously exposed. First cut the sickle with a knife into a box of 1 cm in length and depth, cut the trace deep into the xylem, and then brush with alkali water. If you scrape the disease and then brush alkaline water better. Specific approach: In the epidemic period, brush once every 10 days, so that alkaline water penetration of the disease; in the recurrence of the disease, brushing every 7 days, and at the same time should always check and found that disease prevention and timely prevention and treatment.
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