Early spring flood prevention
The larvae burrowed into the underground part of the leek and tender stems, and the light-vegetated plants wilted and broken leaves. The heavy piers died and even the whole crop was yellow. The larvae or cockroaches shed winter in the soil surrounding the clams, and in winter, the clams were also damaged during the production of the protected land. When the leeks in the open field germinate, the overwintering larvae begin to move. In the middle and late March, the adults emerged. The adults were happy and in the morning, they danced near the pier and laid eggs in the earth seam. The larvae are pleasing to the scent and have rot-propitious characteristics. The pods occur severely in the field when unfermented chicken manure is applied in the field. In spring, the ground temperature stabilizes above 12°C, and it begins to harm. By mid-April, the ground temperature is between 16°C and 22°C. The damage to earthworms reaches a peak, and the ground temperature exceeds 26°C but the damage is reduced. Dried fruit products as the name implies, dried fruit products are pre-treated fruits after selection, washing and dehydration to the water content of 15 ~ 25% products. The volume of dried fruit is about 11 ~ 31% of that of Fresh Fruit, and the weight is about 10 ~ 25% of that of fresh fruit, so it can significantly save the cost of packaging, storage and transportation, and it is easy to eat and carry. Common dried fruits are raisins, red dates, dried mango, dried kiwi, dried strawberry and so on. Dried Fruit,Dried Mango,Raisins,Red Dates,Dried Kiwi,Dried Strawberry Xi'an Gawen Biotechnology Co., Ltd , https://www.agolyn-bio.com
Prevention and control measures: First, before the leeks germinate, the top soil of the leeks should be rooted, but do not injure too many leeks roots. The top soil that comes out of the leeks must also be sun dried. After 5-6 days, the larvae can be killed; After backfilling in the sun, it is necessary to pour 48% Dioscorerin 1000-1200 times, or 50% phoxim 1500 times, to improve the control effect.