Viral disease, also known as cramps, is a major disease on celery. At the seedling stage, the leaves showed thick, light green mottled or yellow patches at the initial stage, followed by brown necrotic spots. There were also obvious yellow or light green ring-shaped radial spots on the edges, and the heart was distorted or the whole plant leaves were severe. Shrinkage, yellowing, dwarfing the whole plant, or even death. The disease is transmitted by locusts and can also be transmitted when exposed to human operations. Preventive measures: 1. Sputum prevention and disease prevention. From the time of emergence and harvesting during the entire period of birth, we must do a good job of annihilation, and it is especially important to eradicate larvae at the seedling stage. 2. Strengthen field cultivation management. Proper close planting, adequate organic fertilizer, promote plant robustness, and increase disease resistance. During agricultural operations, hands and farm tools that have contacted infected plants should be washed with soapy water to prevent infection. Protected areas use insect nets to cover insects outside the shed. 3. Chemical prevention and control. In the early stage of disease, use 20% hydrochloric acid morpholine WP (virus A) 500 times solution, 1.5% plant disease emulsion 1000 times solution or 15% virus WP 750 times solution every 7 times. Spray 10 times a day, spray 2 or 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
China Antibacterial Blend Suppliers
Here you can find the related products in Antibacterial Blend, we are professional manufacturer of Antibacterial blend. We focused on international export product development, production and sales. We have improved quality control processes of Antibacterial Blend to ensure each export qualified product.
If you want to know more about the products in Antibacterial Blend, please click the Product details to view parameters, models, pictures, prices and Other information about Antibacterial Blend.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Antibacterial Blend!
Salicylic Acid,BHA,O-hydroxybenzoic acid,Allantoin Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com