Corn planting wants high yield, in addition to the necessary cultivating and weeding, artificial control and sufficient water and fertilizer, it is also the key to corn high-yield control of corn pest control. Among them, corn baldness has a certain relationship with insect pests. The baldness of corn refers to the phenomenon that the top of the corn ear is not strong and the grain is not full, which is commonly called bald top, which seriously affects the corn yield. In addition to the factors related to soil moisture and corn close planting, the most important thing is caused by insect pests. The main pests are two insect pests, aphids and corn borer. These two pests mainly affect the pollination of corn, causing poor pollination, which leads to the phenomenon that the grain is not full and bald after the ripening of the corn, which seriously affects the yield increase of corn. Since these two pests are mostly in the pollination period of corn, and at this time the height of the corn has reached its peak, and during the pollination period, and the pests have already harmed the ear of corn, it is unrealistic to artificially control the spraying, so the farmers must control in advance. The best period of prevention and control is the corn big bell period, then some farmers will ask, what is the corn big bell period? Usually we judge the standard is that the corn small bell period is 8~10 leaves, and the big bell mouth During the period of 11~13 leaves, the shape of the corn plant is roughly the three-leaf of the ear, which is the ear of the ear and the upper and lower leaves. This period is a critical period for corn to control corn borers and mites. At present, the most widely used is the corn granules and artificial control, together to see how to operate. For corn corn filling period, the most used in rural areas is to mix with phorate (812) and fine sand, and then lose the heart to achieve the effect of killing pests. Now that phorate has been withdrawn from the market, we usually use the following: 1, 25% carbaryl WP can be mixed into toxic soil according to 1:50 mixed sand, and 2-3 grams per plant is sprinkled into the heart; 2, 5% methyl isosulfur granules mixed with sand 1:6, each plant 2-3 grams, sprinkled into the heart; 3, 1.5% phoxim granules with 70% of acetamiprid powder mixed with sand 1:15, each plant 1-2 grams sprinkled into the heart. This will not only prevent corn mash, but also have a good effect on corn mites. Artificial control This is currently the most widely used and most convenient way. (1) In the corn big bell period, we can use 18% insecticidal double 400 ml plus 8% dichlorvos 200 ml water 100~120 kg spray. (2) 2.5% Kung Fu or Yaruike or Xingmianbao EC 60ml with water 100kg spray. (3) 98% Bataan soluble powder 100g water 100kg spray, while using a vitamin salt + high-efficiency chlorofluorohydrocarbon polyester can also be controlled, because these two kinds of long-lasting effect on crops, so can prevent The disease in the late stage of corn. I believe that as long as we do pre-prevention, the prevention and control of corn mites and mites will become very simple. Of course, the phenomenon of corn baldness will naturally fall. For the problem of corn baldness, we are welcome to announce different opinions in the following comment area. Fruit And Vegetables Cutting Machine fruit and vegetables be cut into clivers, pcs, and cubes Industrial Vegetable Cutting Machine,Vegetable Cutting Machine,Commercial Vegetable Cutting Machine,Fruit Dicing Machine JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.skyplantgreenhouse.com
