Method for treating dead and drying tree suffering from pine wood nematode disease

Abstract

The invention relates to the field of national serious pest comprehensive treatment. In a method for treating a dead and drying tree suffering from the pine wood nematode disease, for falling the dead and drying tree suffering from the pine wood nematode disease in place, the dead and drying tree suffering from the pine wood nematode disease is covered with woodland dry branches and fallen leaves and / or weed shrubs and / or soil. Under the condition with thick woodland soil layer, a soil pit can be dug, the trunk and the dead and drying lateral branches with the diameters of over 1cm of the dead and drying tree suffering from the pine wood nematode disease are placed into the soil pit and are covered with the soil and / or the woodland dry branches and fallen leaves and / or the weed shrubs. In the method, by utilizing an ecology principle, entomopathogens in the dead and drying tree suffering from the pine wood nematode disease are artificially induced to attack monochamus alternatus hope and soil termites are induced to consume substrates on which the monochamus alternatus hope and pine wood nematode depend for living. The invention provides the method for treating the dead and drying tree suffering from the pine wood nematode disease, which is convenient, simple, easy, efficient and safe.

Description

technical field [0001] The invention relates to the field of comprehensive management of major harmful organisms in my country, in particular to a method for treating dead wood from pine wood nematode disease. Background technique [0002] Pine is an irreplaceable native tree species in my country's current land afforestation and ecological environment construction. my country's 500 million mu of pine forest resources is not only the barrier of my country's ecological security, but also a strong material basis for building a well-off society in rural areas. Pine wood nematode is a devastating disease of pine trees. Due to the destructive harm of pine wood nematode, difficulty in control, multiple transmission routes and wide range of suitable habitats, more than 40 countries and regions in the world have listed it as a quarantine object. Since the discovery of pine wood nematode disease in Nanjing in 1982 in my country, it has gradually spread to the vast provinces and r...

AI Technical Summary

Problems solved by technology

However, the bagging fumigation method has the problems of complicated process and high cost of treatment. In Guangdong, the average cost of treatment of pine wilt nematode dead wood with a DBH of 20 cm is about 60 yuan per plant.

With the expansion of pine wood nematode epidemic areas in my country and the increase in the occurrence of pine wood nematode dead wood year by year, the gap in prevention and control funds has been expanding year by year. The current dead wood treatment methods are obviously not suitable for the current comprehensive management of pine wood nematode disease. needs