Control method for greenhouse tomato root knot nematode disease

Abstract

The invention discloses a control method for a greenhouse tomato root knot nematode disease. The morbidity of the greenhouse tomato root knot nematode disease can be greatly lowered, the yield of greenhouse tomatoes is increased, and the quality of the greenhouse tomatoes is improved. The method comprises the following steps of crop rotation implementation, seed treatment, soilless culture of nematode-free strong seedlings, grafting cultivation, soil disinfection, biological control and chemical control. Accordingly, the means of early prevention is adopted, it is clarified that 40% isofenphos methyl E.C. or nematode repellent powder is used for conducting biological control on soil, and meanwhile biological control and chemical control are combined. The experiment shows that by means of soil ecological control, the tomato root knot nematode disease can be effectively prevented, the control efficiency reaches 90% or above, the average morbidity of the tomato root knot nematode disease is significantly lowered, the tomato yield is increased, the tomato quality is significantly improved, and the good economic benefit is achieved.

Description

technical field [0001] The invention belongs to the field of greenhouse tomato disease prevention and control, and in particular relates to a method for preventing and treating root-knot nematode disease of greenhouse tomato. Background technique [0002] In recent years, with the continuous expansion of the area of ​​tomato cultivation in greenhouses, the phenomenon of repeated cropping and continuous cropping has become more and more common, and the prevention and control measures have not kept up, resulting in the increasing damage of root-knot nematodes in greenhouse tomatoes. Because the environmental conditions in the greenhouse are suitable for the reproduction of pathogenic nematodes, the disease occurs all year round, and the disease is more serious than that in the open field. The loss due to disease is generally 20% to 30%, and the serious one is as high as 60% to 70%, or even no harvest. In addition to harming tomatoes, it also harms cucumbers, eggplants, lettuce...

AI Technical Summary

Problems solved by technology

At present, although crop rotation is the most economical and effective control measure for the control of tomato root-knot nematode disease, there is no better control method for tomato root-knot nematode disease due to the difficulty of implementing large-scale crop rotation.