Dear friends, everyone, the Century Pesticide Network Xiaobian has come to give you a general approach to the prevention and control of plant diseases and insect pests. Doing a good job in the prevention and control of pests and diseases is a very important part of the planting process and is of great significance for improving production. Let's take a look at it with Xiaobian! (1) Symptoms: 1 螨: Wide spread, rapid reproduction, heavy damage, is a risk pest in the garlic field and storage. The wintering of the eggs and the sorghum in the garlic plants or in the soil can also cause the eggs to overwinter in the garlic bulbs. Chengyu lays eggs in the depression of the base of garlic bulbs, mostly single or several, which is easy to occur in the acidic sandy soil with abundant organic matter. Chengyu and if you eat the bulbs of the garlic plants, the damaged bulbs are decayed and stinky, and the ground is dry and dead. When the garlic is damaged, it will decay or become dry and become empty. 2 rot-like mites: for the world's pests, spread widely, proliferate fast, and damage. It is the first to damage the garlic, and there have been attacks in the garlic field in recent years. Overwinter in the garlic with eggs, oysters or mites. Chengyu lays eggs at the base of the garlic clove on the garlic bulb stem, or lays eggs in the hole of the victim. Most of the eggs are piled up, and a few are single. The rot of the hobby is a group of people living in a humid and decaying environment. When the cockroaches and cockroaches are harming the garlic, the initial foraging: the appearance of the garlic cloves, and gradually smashing the inside of the garlic cloves, forming many irregular holes. The damaged garlic is decayed under humid conditions, and under dry conditions, it is yellow and thin. In the field; after the base of the bulb of the plant is damaged, it causes decay and stink, causing the plant to die. 3瘿螨: Also known as tulip, it is widely distributed and is a worldwide pest. In addition to the onion and garlic vegetables, it also harms wheat, corn and trees. Garlic stored in the form of cockroaches and cockroaches can sometimes damage the garlic in the field. Mostly invade from the margin of the stem of the garlic, and suck the juice in the fleshy part of the base of the garlic. In the future, it will gradually shift to the top part of the garlic clove, causing the garlic to gradually wilting, browning and drying, and the garlic becomes empty. Under the condition of high humidity, the wounds of the damaged garlic will also infect many germs, causing the garlic to decay and stink. It is still a predicate of viral disease, with a large amount of poison, rapid drug transmission, long toxicity period, and heavy damage. The transmission rate of garlic is 100%. All the garlic that has been damaged by cockroaches has many kinds of viral diseases, which grow slowly, do not convulsion, do not constitute garlic, or constitute a single head garlic. (2) Control measures: 1 If the mites are found to be harmful during storage of the garlic, they can be fumigated with sulphur yellow powder. Use 100 grams of sulfur powder per 1 cubic meter of space, participate in a small amount of sawdust, mix well and put it in a container, put it in the garlic storage room, close the door and window after the point, fumigation for 24 hours, the killing effect reaches 100%, but The egg is ineffective and can be fumigation 1 time after the egg hatches. 2 Do not rotate with green onions, onions, and leeks, and do not grow adjacent to it, and carry out 3 to 4 years of rotation. 3 Strictly select seeds before cultivation, screen the garlic cloves with disease and insects, and then soak the selected species with 80% dichlorvos emulsion 1000 times solution for 24 hours, the killing effect can reach 100%. The garlic skin, garlic roots, garlic stubs and stems remaining after the garlic are all collected and burned to reduce the source of infection. 4 When cultivating, firstly spread the granulated phosphorus granules in the cultivation ditch, 3 to 4 kg per 667 square meters. 5 Garlic is irrigated with 80% dichlorvos emulsion 300-400 times during the growth period in the field. 6 In time, eradicate the damaged plants in the field, burn them or bury them in depth to reduce the source of plutonium. Wood Hole Saw,Timber Hole Saw,Drill Carbide Hole Saw Bits,Carbon Steel Hole Saw Bit Danyang Yongshun Tools Co.,Ltd , https://www.ysdrillbitset.com