How to Eradicate Poplar Canker Disease? Detailed Explanation of Prevention and Control Methods
The trunk of the poplar stands straight and upright, with bark that is smooth or longitudinally fissured. Poplars have a wide range of uses, but during their growth process, some pests and diseases appear. Canker disease is one of them.How to eradicate poplar canker disease?
1. How to Eradicate Poplar Canker Disease
Before the peak period of the disease, dilute 1% Kuifuling 50-80 times with water, apply it to the diseased spots or inject it directly into the diseased spots with a syringe, or scrape off the diseased spots with a knife, then spray Kuifuling at 50-100 times dilution, 70% thiophanate-methyl at 100 times dilution, polyoxin at 100-200 times dilution, 50% carbendazim at 100 times dilution, 50% tuijunte at 100 times dilution, or 2.12% 843 recovery agent at 100 times dilution. In spring and autumn, apply whitewash to the lower part of the trunk.
Poplar canker disease is a host-dominated disease, meaning whether the disease occurs mainly depends on the physiological health condition of the host. Therefore, the prevention and control of this disease should be based on silvicultural measures, with chemical control as the leading approach, to improve the comprehensive stress resistance of poplars and enhance their disease resistance; always adhere to the policy of “prevention first, integrated management”.
2. The Harm of Poplar Canker Disease
Poplar canker disease can attack everything from seedlings and young trees to large trees, but seedlings and young trees suffer the most severe damage, causing dead tops or the death of the entire plant. There are 8 pathogens that cause poplar canker disease. The ones currently known to cause major damage in production are: poplar blister-type canker disease, poplar large-spot-type canker disease, and poplar bark rot-type canker disease (all three of the above are caused by fungi). There is another poplar bacterial-type canker disease that has been newly discovered in our country in recent years. It occurs in Northeast China and causes very serious damage, so great attention should be paid to it.
Do a good job of protective measures, and take every aspect into consideration during forest management so that diseases have no way to occur.