Corn Insect Pest Control Technology
First, the main symptoms The leaves of the heart are drilled and eaten at the leaf stage of the corn, and when the leaves are opened, holes are formed. After heading, it was plucked into the stalk or ear, and at the heading stage, it was also able to bite into the corn silk, tender grains, or into the cob. The stalk tissue is damaged, affecting the transportation of nutrients, which results in incomplete development of the corn ear and reduced yield. The stalk is easily damaged by the wind and is more damaged. Second, prevention and control measures 1. Agricultural control: The corn borer uses the mature larvae to overwinter in corn stalks or corn root stalks. The stalks, axes, spikes, and spikes are treated with rakes, mills, rakes, and mud seals before the adult eclosion in winter and spring to eliminate the overwintering insect resources. 2. Chemical control: In the leaf stage of corn, when the mosaic rate is more than 10%, the control effect of granules is best at the end of the tassel period (large bell-mouth period). 0.3% phoxim granules or 1% 1605 granules can be used; 2.5% carbaryl and 3% carbofuran granules can be poured into corn big bell mouth; 50% ethyl 1605 emulsion can also be used 1 kg with 10 kg water dilute Into the fine 50 kg sieve slag particles, scattered into the big bell mouth, the amount of each plant. When the mosaic rate of the middle leaf stage has reached more than 30%, it should be controlled once and then treated once at the end of the heart. When the ear stage occurs, the female filigree heart is fed with 50% dichlorvos EC 800-1000 times. 3. Biological control: Bt emulsion containing 10 million yuan per gram of bacteria or Bt-781 and other bacterial pesticides of S. yunnanensis will be used. The application of 10 times of granules per acre in the final stage of the end of the leaf stage is very effective. 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.seoagolyn.com