The invention relates to a technology for preventing and curing knot
nematode of tomatoes by using
edible mushroom dregs. The knot
nematode does great harm to
greenhouse tomatoes, thereby being a big obstacle for producing the
greenhouse tomatoes. The technical scheme adopted by the invention is as follows: applying additional materials containing needle
mushroom dregs when performing ridging and laminating on the tomatoes; and closing a
greenhouse for 15 days at a high temperature after performing broad
irrigation on the green tomatoes. The temperature in the greenhouse is kept at 65 DEG C, so as to realize the effect of closing the greenhouse at a high temperature. The
area ratio of the needle
mushroom dregs to the
land area is 20m<3> / 667m<2>. The technology provided by the invention has the following beneficial effects: the harm of the knot
nematode can be greatly reduced, the applied material is green and
environmentally friendly, has no
pollution and meets the relative requirements on
sustainable development; and application of the additional
mushroom dregs in soil and the closing of the greenhouse at a high temperature in summer can obviously raise the temperature of the soil and the green house, so as to kill germs in the soil. According to the invention, the high temperature is raised when the mushroom dregs ferment in the closing of the greenhouse at a high temperature, and 45% of
phoxim emulsifiable missible oil is added, so that the knot nematode can be effectively prevented and cured under the combined action of killing with poison and high-temperature limitation.