Nematicidal composition containing verticillium chlamydosporium and Paecilomyces lilacinus and preparation method thereof

Abstract

The invention relates to a nematicidal composition containing verticillium chlamydosporium and Paecilomyces lilacinus and a preparation method thereof. The nematicidal composition consists of the verticillium chlamydosporium and the Paecilomyces lilacinus, and also comprises a solvent, an aid and a stabilizer. The nematicidal composition comprises the following components in percentage by weight: 0.1 to 10 percent of verticillium chlamydosporium, 0.1 to 20 percent of Paecilomyces lilacinus, 1 to 15 percent of stabilizer, 5 to 15 percent of solvent, 1 to 10 percent of aid and 60 to 90 percent of carrier. The verticillium chlamydosporium and the Paecilomyces lilacinus are combined to achieve a synergistic effect, and a nematicidal effect is better; the verticillium chlamydosporium and the Paecilomyces lilacinus are bacterial parasites for nematode, a biocontrol technique is used, and is environment-friendly and safe, and problems that the nematode has resistance to pesticides, a development cycle for a new pesticide is long and the like are solved; and the verticillium chlamydosporium and the Paecilomyces lilacinus can promote the growth of plants to achieve effects of increasing production and value.

Description

technical field [0001] The present invention relates to a nematicidal composition, in particular to a nematicidal composition using nematode parasites and a preparation method thereof. Background technique [0002] Root-knot nematodes mainly damage the roots of various vegetables, showing that the lateral roots and fibrous roots are more than normal, and form spherical or conical white nodules of varying sizes on the fibrous roots of young roots, and some are in the shape of rosary. The aboveground growth of the infected plants is short, slow, and the leaf color is abnormal, the results are few, the yield is low, and even the plants die prematurely. At present, the nematodes known to damage vegetables mainly include Toxocarpus tallis, peanut root-knot nematodes, northern root-knot nematodes and southern root-knot nematodes. Nematodes have a wide range of hosts, often injuring more than 30 kinds of vegetables such as melons, solanaceous fruits, beans and radishes, carrots, l...

AI Technical Summary

Problems solved by technology

[0005] Due to long-term, single use or abuse of pesticides in agricultural production, pests have developed resistance to pesticides, and even developed cross-resistance and multi-resistance, making many pesticide varieties useless

However, the research and development cycle of new pesticides is long, and they are often not available, which is a major obstacle to agricultural production.

Images