Methods for preventing and controlling damping off of pine seedlings through Chroogomphus rutilus

Abstract

The invention provides methods for preventing and controlling damping off of pine seedlings through Chroogomphus rutilus, belongs to the technical field of pest control of forests and aims to solve the problems of soil contamination and poor effect of a chemical agent when the chemical agent is used for controlling the damping off of the pine seedlings. Method 1 comprises the following steps: if forest stands producing the Chroogomphus rutilus exist locally, fruiting body soil blocks with mycorrhizas are dug and placed in a seedbed, then pine seeds are sown, seedlings are cultured, Chroogomphus rutilus fruiting bodies are harvested, and operation is finished; method 2 comprises the following steps: if forest stands producing the Chroogomphus rutilus do not exist locally, a liquid strain is required to be prepared, bacterium infected seedlings are planted on the seedbed and cultured, overground parts of the seedlings are removed, the pine seeds are sown, the seedlings are cultured, the Chroogomphus rutilus fruiting bodies are harvested, and operation is finished. According to the method, the damping off of the pine seedlings are prevented and controlled through the Chroogomphus rutilus, all pathogenic bacteria can be prevented and removed, favorable environment conditions are provided for seedling growth, and the preventing and controlling effect is obvious. Crop rotation is not needed, the rare edible fungus Chroogomphus rutilus can be harvested jointly, and the method has remarkable economic benefit.

Description

technical field [0001] The invention belongs to the technical field of forest disease and insect pest control. Background technique [0002] Pine seedling blight is the main disease in the cultivation process of pine seedlings. Because the pathogenic bacteria are soil habituating bacteria, they often cause serious harm. , the disease must be prevented. At present, the following technical methods are mainly adopted for the prevention and control of pine seedling blight [0003] ①Appropriate nursery site selection and crop rotation: It is required that the nursery site be selected in sandy soil with good drainage. Avoid low-lying, clayey soils. The previous stubble cannot cultivate pine seedlings. Since the pathogenic bacteria are soil resident bacteria, these measures can only alleviate or reduce the incidence of pine blight. [0004] ② Seed treatment: generally use 0.1% potassium permanganate to disinfect the seeds for 60 minutes or rinse the seeds repeatedly with water...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of using chemical agents to control pine seedling blight and to provide a method for preventing and controlling pine seedling blight by using the blood red rivet mushroom.

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