Pear rot disease prevention and control method
Pear rot disease, also known as stinky skin disease, occurs in various pear regions in China. Dangshan Pear and other diseases are more severe. In addition to harming pears, they also harm other plants. 1, symptoms Pear rot disease is a fungal disease. The site of the disease was mainly on the main branches and lateral branches, and the incidence of twigs and trunks was less; At the beginning of the disease, the diseased part slightly raised, water stained, reddish-brown to dark brown, pressed with the fingers, the disease department was slightly subsided, and reddish-brown sap flowed out. The diseased tissue was sweet and alcoholic. Afterwards, the diseased part gradually sag, dry, and produce small black pods, and the bark cracks. Germs generally invade only the bark surface. There are more incidences in spring, milder onset in autumn and no onset in summer. 2, the law of occurrence The bacteria overwintered on the bark and reactivated after the next warm season, causing the old disease to spread and new diseases to occur. The germs are spread by rain and invade tissue from the wound. Excessive management and weakening of the tree tend to cause disease. 3, control methods (1) Strengthen cultivation management, increase tree vigor, and increase disease resistance. (2) Before the onset of the disease in the early spring, thoroughly scrape the rotted cortex of the diseased area, apply “S-921†antibiotic 30 times or 30 times alkali solution, and spray 40% aqueous agent 843 and 400-500 times fluid in the early stage of disease. The scraped skin must be burned. Antibacterial,Dapoxetine Powder Active,Factory Supply Lapatinib,Top Quality Ezetimibe Benefit,Buy Cefuroxime Axetil, Antibacterial,Dapoxetine Powder Active,Factory Supply Lapatinib,Top Quality Ezetimibe Benefit,Buy Cefuroxime Axetil Xi'an Henrikang Biotech Co.,Ltd , https://www.henrikangbio.com
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