The solution of Cherry Leaf Curl
There are many factors that cause cherry trees to roll leaves, especially in hot weather, plants are likely to roll leaves. If the plants are short of water only because of the hot weather, the symptoms can be relieved as long as they are watered or shaded properly. But it may also be the harm of aphids. Aphids often gather on the back of the leaves to suck juice, causing curls and wrinkles of the leaves. For aphids, 2000-fold solution of imidacloprid or pyrethroid pesticides can be used to control aphids. In addition, the lack of nutrients in cherries can also lead to curling leaves. Due to potassium deficiency, the leaf edge scorched and gradually expanded from the lower part of the new shoot to the upper part. The Summer Solstice scorched on the leaves of the old tree at the end of summer, sometimes the leaves were turquoise, and then the leaf margin curled parallel to the main vein, faded, and then burned. Solution: spray 0.2%-0.3% potassium dihydrogen phosphate during the growing season, or apply potassium sulfate to the soil. Lack of calcium, the tip of the young leaves curled like a hook, and became brown and scorched a few days later. Solution: calcium preparation GA calcium treasure, Merrill Lynch efficient calcium, calcium lactate and other good results. Lack of molybdenum, leaf interveinal chlorosis, or even yellowing, easy to appear yellow or orange spots of different sizes, leaf slender deformity, leaf margin curled upward into a cup, and finally the mesophyll fell off and incomplete. Solution: spray 1.2% ammonium molybdate solution on the leaf.
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Post-harvest management technology of Chinese chestnut
Post-harvest management technology of Chinese chestnut
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The function and method of applying Base Fertilizer to Cherry in Autumn
Big cherry spring blossom and summer fruit. Recently, many cherry growers called to inquire about cherry post-blossom management technology. in this regard, the reporter visited Zhang Zhicheng, an expert on miscellaneous fruits at Northwest University of Agriculture and Forestry Science and Technology. Zhang Zhicheng reminded farmers that big cherries mature more than 30 days after blossom and are now in the critical period of technical management from post-flowering to fruit ripening.
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