The diseases and insect pests that cause yellow onions, yellow leaves, downy mildew, botrytis, diseases, virus diseases, and flies, etc. Since the drugs used to cure downy mildew, gray mold, and disease have no effect, the onion has become viral and The species fly is most likely to be harmed and can be controlled based on specific symptoms.
ã€Injury to the flies】 The larvae burrowed on the underground stalk scallion rhizome, resulting in the underground part of the rot moldy, partially wilted on the ground, the tip of the yellow leaves or the whole plant leaves yellow, severe, the onion to stop growing or even died. Can be used 75% ciprofloxacin WP 3000 times, 40% phoxim EC 3000 times, 48% chlorpyrifos EC 3000 times, 5% fluvoluene EC 3000 times, rooting, control of fly larvae damage.
Symptoms of Viral Symptoms There are yellow-green mottled or yellow strips of varying lengths on the leaves. The leaves are distorted and the leaves are gradually yellowing. When the onset is heavy, the onion growth slows down or the entire plant is killed. Weeping onset of the onion, with 1.5% Phytophthora Ling emulsion 1000 times 20% hydrochloric acid morpholinium, copper acetate wettable powder 500 times liquid 10% mixed fatty acid emulsion spray 100 times, interval 7-10 days, even spray 2 3 times.
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
SARS-CoV-2 Neutralizing Antibody Rapid Test (Golloidal Gold)
SARS-CoV-2 Neutralizing Antibody,COVID-19 Antibody,Golloidal Gold,Rapid Test
Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimedicadevice.com