Question: The readers of Yanfei Township called and said that the silvery white streaks appeared on the back of the corn leaves he planted, and then the back of the leaves appeared like a layer of silver powder. Finally, the leaves were deformed and dried up and died. Ask what is this disease, how to prevent it? Yan Jindong A: According to this reader, this is the hazard of corn and yellow horses. Corn stalks are the main pests in the corn seedling stage. Shandong, Beijing, Hebei and other places are harmful. Adults use a sucking mouthpart to scrape the epidermis of the corn leaf, insert the tissue with the mouthparts to absorb the juice, and the intermittent silvery white streaks appear on the back of the damaged leaves. The front part of the leaf has a yellow streak on the front part. Apply a layer of silver powder, the leaves are deformed, cracked, yellowed and dried, and died. Damage to the heart leaf often causes the heart to bend and deform. Huang Duo Hu Ma occurred on the corn for 2 generations, and at the end of May and early June, it harmed spring corn and interplanted corn. In the second generation from late June to early July, adult peaks appeared, mainly affecting interplanted corn and summer maize. The yellow-streaked horses are hazard on the surface of the stretched leaves. The hazard period is mainly concentrated on the upper 2 to 6 leaves of the corn, and rarely shifts to the newly stretched leaves. The yield is generally reduced by 5% to 15%, and the weight is reduced by 35%. the above. From late May to early June, the climate drought occurred in a large amount, and the damage was heavy. On the contrary, it was light. The early sowing corn was more serious than the late sowing corn. Control method: 1. Agricultural management: and time seedlings, seedlings, and the removal of the victim seedlings, centralized treatment. Strengthen field management such as fertilization to promote corn growth, resulting in an environment that is not conducive to the occurrence of corn and yellow thrips. 2. Chemical control; in the early stage of pests, use 48% chlorpyrifos 1000 times or 10% imidacloprid wettable powder 4000 ~ 5000 times or 70% imidacloprid wettable powder 4000 + fluflurin 1000 times or 5% pulp to kill 500 times or 40.7% chlorpyrifos (Lesburn) emulsifiable concentrate 1000 or 10% chlorfenapyr (depletion) suspension agent 2000 times or 5% cypermethrin 20 ml or 25% thiamethoxam WP 6 g and other drugs. Due to the large-scale use of chemical pesticides in the past few years, it is recommended that the majority of farmers' friends should use some chemical additives to prevent the use of chemical pesticides, which can achieve twice the result with half the effort. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Wiggle wire lock is designed to be used with poly lock base cap- sold separately. Greenhouse wiggle wire and base care are an effective method of attaching your poly film roof and or shade cloth. The greenhouse wiggle wire lock will hold form 4 mil to 20 mil thickness of material. Use one wire to hold the roof in place and then add a second wire to hold your shade cloth. When it is time to remove the shade cloth, you will not disturb the roof plastic. Greenhouse Wiggle Wire,Greenhouse Steel Wire,Greenhouse Spring Wire JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.thgreenhouse.com
Universal Base (WIG2000)- used on the curved surface, i.e. the arch for attaching the end wall covering.
Standard Base (WIG1000) - used along the straight lengths of your greenhouse.