How to cure poplar canker disease

The trunk of the poplar stands upright and its bark is smooth or split longitudinally. Poplar has a wide range of uses, but there will be some diseases and insect pests in its growth process. Ulcer is one of them. How to cure poplar canker?

1. How to cure poplar canker

Before the peak of the disease, dilute 50-80 times with 1% Kuifuling, smear the disease spot or directly inject it with a syringe, or scrape off the disease spot with a knife. Spray Kuiyangling 50-100 times, 70% methyl topiramate 100 times, polyoxomycin 100-200 times, 50% carbendazim 100 times, 50% carbendazim 100 times or 2.12% 843 rehabilitation 100 times. Apply white paint to the lower part of the tree trunk in spring and autumn.

Poplar canker is a host-dominated disease, that is, the occurrence of the disease mainly depends on the physiological health status of the host. Therefore, the prevention and control of the disease should be based on forest management measures, led by chemical control, improve the comprehensive resistance of poplar, enhance the ability of disease resistance, and always adhere to the policy of "prevention first, comprehensive management".

Second, the harm of poplar canker

Poplar canker can be damaged from seedlings, young trees to big trees, but seedlings and young trees suffer the most, resulting in shoot withering or whole plant death. There are 8 kinds of diseases that cause poplar canker, but it is known that there are three kinds of poplar canker: Poplar vesicle canker, poplar spot canker and poplar rotten bark canker (all of the above three are caused by fungi). Another kind of poplar bacterial canker is newly discovered in China in recent years, which occurs in Northeast China, and the harm is very serious, which should be paid more attention to.

Do a good job of protective measures, take into account all aspects of forest management in order to prevent the occurrence of diseases.