Complex microbial inoculant for controlling root-knot nematodes of crops and preparation method of complex microbial inoculant

Abstract

The invention relates to the field of biologically-derived insecticidal preparations, in particular to a complex microbial inoculant for controlling root-knot nematodes of crops and a preparation method of the complex microbial inoculant. The complex microbial inoculant for controlling the root-knot nematodes of the crops and the preparation method of the complex microbial inoculant are characterized in that microorganism is composed of bacillus subtilis, bacillus sphaericus, pseudomonas fluorescens, bacillus thuringiensis, brevibacillus laterosporus, paenibacillus polymyxa, pasteurella pneumoniae, paecilomyces lilacinus, verticillium chalamydosporium, beauveria bassiana and aspergillus fumigatus. The novel multi-bacteria same-pot fermentation technology is adopted, the formula is clever and reasonable, the disadvantages of mutual antagonism in the liquid deep fermentation culture of compound bacteria are eliminated, the compound bacteria has high activity, and the complex microbial inoculant for controlling the root-knot nematodes of the crops has a good control effect on tomatoes and cucumber root-knot nematodes.

Description

technical field

[0001] The invention relates to the field of biological source insecticide preparations, in particular to a compound bacterial agent for controlling root-knot nematodes of crops and a preparation method thereof. Background technique

[0002] Vegetable root-knot nematode is a worldwide disease. There are four main types of root-knot nematodes that harm vegetables: root-knot nematode incognita, root-knot nematode northern, root-knot nematode peanut, and root-knot nematode Javan. The diseases of tomato and cucumber root-knot nematodes are mostly caused by the root-knot nematode incognita, and the damage is serious. According to many years of experimental surveys in Shandong, Guangxi, Henan and other places: the total incidence rate of tomato and cucumber greenhouses reached 67.6%, the total diseased plant rate was close to 50%, and the average incidence rate of old greenhouses was close to 95%. The diseased part is mainly parasitic on the fibrous roots and late...