To control root rot, open the soil from the roots of the fruit trees, expose the roots, scrape the diseased skin on the roots with a knife, and after rooting for 2-3 hours, apply the fresh grass and gray to the roots, then cover the roots. The treated roots can be cured within 1-2 months.
Prevention of Downy Mildew After the fruit enters the period of expansion from July to August, it is used to apply plant ash on the ground or in trenches on tree trays. Can also be used 4% of the ash leaching liquid foliar spray, that is, every 3-4 kg of grass ash plus 100 kg of water, filtered and sprayed after immersed for 24 hours, the effect is better.
Prevention and treatment of rust disease in the 50 cm away from the fruit tree dig 50 cm wide, 60 cm deep groove, the plant ash applied to the ditch, pouring enough water, pressure on the new soil, have a control effect on rust disease.
The prevention and treatment of early defoliation disease uses 8 kg of turfgrass plus 100 kg of water soaked for 48 hours to filter and prepare a leachate. The mixture is sprayed with a bactericide to prevent and control early deciduous disease in fruit trees. When spraying foliar ash to the foliage, the soaked clear liquid should be used to prevent the leaves from being contaminated.
Blight, B. anthracnose seedlings are susceptible to blight and anthracnose, and when they are severe, they cause a large number of dead seedlings. The application of 30 to 50 kilograms per acre with the use of grass and gray stalks can effectively prevent the occurrence of these two diseases.
The prevention and treatment of pear hibiscus in the June-July period of pear hibiscus occurred at the peak period, spraying 3% of the ash soaking solution on the pear trees, after 3-4 hours, spraying insecticides, can effectively control pear hibiscus.
Prevention and control of locust use 10 kg of grass ash plus 50 kg of water, soak for 48 hours, and take the filtrate to spray, which can effectively control the aphids on fruit trees.
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