When the roots of the shrubs were found to have wilted leaves or the tips of the new shoots had dry and coke edges, the soil around the tree trunks was dug immediately to expose large roots, and then the water was rooted with an aqueous solution of hymexazol (per 10 g). Hymexazol 10 kg water, 7 days and then irrigation - times. Then backfill with new topsoil. 9281 Spread the roots of the roots of apple trees with root rot to expose roots and roots. Examine roots and major lateral roots. Perform root examinations. Cut the rotted parts from their adjacent good tissue and root them up. Divide a longitudinal tract at intervals of 1-2 centimeters. It is appropriate to dig the depth of the root bark. Then use a 3 times liquid 9281 to apply large roots. Fill the roots with 200 times liquid 9281, so that the amount of water is soaked in the soil around the roots. Two days later, the new topsoil was backfilled from other places. The ash cover method will split the soil under the apple tree with the symptoms of root rot, expose the roots, scrape the rot, scrape the roots for a period of time, then apply 2.5-5 kg ​​of plant ash to each plant, and add a little cover with soil. The plant ash is a fertilizer containing potassium and phosphorus. Using this method to treat apple root rot also has the effect of enhancing tree vigor and improving the resistance of the tree to disease. With the method described above, root rot of apple trees is controlled and new roots can be issued after 2 months, and tree vigor is restored year by year.
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