Pomegranate is still not ripe, and it turns black.
"It’s all bad from the inside, and I don’t know what’s going on.†Mr. Ge said that in order to treat the pomegranate, he initially used the pomegranate tree to fight drugs. It may be that the medicine is not symptomatic. It has not been effective for several times. Every day, I wandered around the tree and saw a little pomegranate open, but it was bad after opening." According to the photos provided by Mr. Ge, Du Zhihui, a senior agronomist at the Shaanxi Provincial Fruit Research Institute, believes that during the growth of pomegranate trees, pomegranate dry rot and pomegranate brown spot are common diseases, mainly harming the fruits and leaves of pomegranate. “This is Pomegranate dry rot is caused, and these diseases are caused by mold pollution. It is necessary to carry out comprehensive prevention and control in different time periods, especially in the winter clearing work." Do a good job in chemical control Du Zhihui suggested: 1. After spring pomegranate sprouting leaves, use 10% difenoconazole WG (Shigao) 3000 times solution or 20% propiconazole EC3000 times solution to remove the latent pathogens. 2, from late April to mid-June, the young fruit period after the Xiehua is a key period for the prevention and treatment of pomegranate. Mainly prevent and cure aphids, thrips, and scabs. Control aphids, thrips with 10% imidacloprid WP2000 times solution, or 2.2% avidipin EC2000 times solution, 3% acetamiprid EC2000 times solution. Prevention and treatment of scab disease can be used in the early stage of the disease with 75% chlorothalonil WP (Dakoning) 800 times solution, or 80% mancozeb WP (Xin Wansheng) 600 times solution, 65% daisen zinc WP (zinc pu ) 500 times solution, 70% Daisenlian DF (Pin Run) 600 times solution, 10% diphenyl ether methylcyclazole WG (Shigao) 3000 times solution, 5% imidazole WP (Molden Energy) 600 times solution, 20% propiconazole EC2000 times solution. 3. After the middle of June, the disease is controlled by dry rot. The pathogen of the disease is the fungus pomegranate. The disease often occurs after the rainy season, and the age of the old orchard is more than 6 years old, and the fruit in the middle and lower parts of the canopy is more common. In the initial stage, the oily spot on the fruit shoulder and the fruit waist of the pomegranate fruit is formed, and an irregular lesion with a size of 2-3 mm 4-10 mm is formed. The diseased part is stiff, slightly concave, and is dehydrated and dry. The edge of the lesion is red, and the middle is dark brown. The local fruit growers call it “age spotsâ€. The disease begins in early June and lasts from late June to early July. Prevention and treatment of dry rot can be sprayed 80% mancozeb WP600 times solution in early June, 70% methyl thiophanate WP1000 times solution, or 12.5% ​​flucyclazole SC (Oubo) 3000 times solution, 43% Tebuconazole SC (Haoli) 3000 times solution, 40% fluorosilazole EC (Fuxing) 8000 times solution, have a good control effect. Do a good job in winter clearing garden to reduce wintering pests Elimination of wintering pests and diseases is a key measure to alleviate pomegranate pests and diseases. Du Zhihui said that after fruit harvesting, it is very important to do a good job in winter pest control in the pomegranate garden. First, pick the fruit. Pomegranate fruit damaged by pomegranate dry rot, brown spot disease and hazelnut pests, some fruits rot and fall off, while the rest of the water shrinks into a stiff fruit, which does not fall in the winter, becoming the main wintering place for germs and pests. The removal of the dead fruit, concentrated deep burial or burning, is an important measure to reduce the number of pests infested at the beginning of the year and the number of pests in the winter. In addition, cut the diseased branches. Cut off the branches of the tree that are infested by pests and diseases, remove the large bagged moth sacs from the canopy, and remove the winter locusts of the yellow thorn moth located at the tree right and the rough skin. This work is carried out in combination with winter pomegranate tree pruning, and the cut pests and diseases are taken out of the garden and burned. The third is spraying. The pomegranate tree sprays 1-2 times 40% Fumei 胂 500 times liquid, which has good effects on preventing pomegranate dry rot, brown spot disease, and shell-like pests, and can play an anti-freeze effect. Spraying 2.5% Kung Fu EC 2000 times solution, or 5% Efficacy flumethrin EC 1500 times solution, or 50% malathion EC 1500 times solution during the early winter or spring spring time, can effectively kill the pomegranate Wintering elephants, locusts, leafhoppers and other pests on trees. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Feed Additive,Corn Gluten Meal Liquid,Cat Food Corn Gluten Meal,Corn Gluten Meal Mice JILIN COFCO BIO-CHEM AND BIO-ENERGY MARKETING CO., LTD , https://www.cofco-biotech.com