Maize rough dwarf disease is a viral disease that has been widespread in our province in recent years. It is devastating and hard to cure once it occurs. Dwarf diseases are transmitted in a persistent manner by the planthopper, and corn can be infected throughout the growing period. The typical symptoms after onset are dwarfing of plants, dark green leaves, and their leaves opposite, such as spring bamboo shoots, serious heading. The late-infectious diseased plants also showed normal internode length below the ear, short internodes above the ear and ear, shorter ears of the female than the ears, ear malformations, baldness, waxiness of the temporal lobe, and abaxial lobe. White bars. The field is generally infected with some plants, and the diseased plants in the vicinity of the ground head and weeds are more concentrated. Corn seedling stage to the 7th leaf stage is sensitive to maize rough dwarf disease. A variety of grass crops and weeds are the host plants of maize rough dwarf disease. Spring maize sown in mid-April of the spring and summer corn sown in mid-June have a low incidence. From mid-May to early June, the first generation of adult Spodoptera canadensis reached the peak of virus transmission. At this time, yellow wheat was ripe and young plants in the field were scarce, which caused damage to the spring corn and interplanting corn. Therefore, the main focus of the control of corn rough dwarf disease is to adjust the sowing date, appropriate sowing, summer corn does not advocate interplanting, should be planted seedlings, generally do not sow before June 5. Before sowing, seeds are coated or seeded with seed coating agents containing carbofuran and other insecticides to effectively control the planthopper phase of SBPH. During the seedling stage, we control weeds and pests by combining chemical weeding with corn in areas that are prone to land, such as in the field or on the ground. The use of 4.5% beta-cypermethrin 2000 times plus 1.5% phytobiotic Ling No. 2 800 times the liquid, used twice a day for 7 days. At the early stage of disease, with 20% virus A500 or 1.5% Zhilingling No. 2 800 to 1000 times, brassin 6000 times solution + 0.3% potassium dihydrogen phosphate mixed spray was applied once every 7 days for 3 times. At the same time increase the application of organic fertilizers and phosphorus and potassium fertilizers to promote the healthy growth of jade, shorten the period of disease, reduce the chance of transmission. If a diseased plant is found in the field, it should be removed in a timely manner and be deeply buried or burned, so as to reduce the sources of invasive disease. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone To Reduce Fat Powder,Natural Capsaicin,Soybean Extract,Food Grade Soybean Lecithin Xi'an XJeson Biotech Co., Ltd , https://www.xjesonbio.com