Root-knot nematode control composition, root-knot nematode control preparation, and application of composition and preparation

Abstract

The invention discloses a root-knot nematode control composition. The composition comprises, by weight, 100-400 parts of scallion powder, 100-400 parts of garlic powder, 20-50 parts of Crotalaria juncea alcohol extract, 20-50 parts of Fragrant Eupatorium Herb alcohol extract and 20-50 parts of Brucea javanica alcohol extract. The invention also provides a root-knot nematode control preparation adopting the composition as an effective component. The composition and the preparation, which adopts multiple natural chemically-combined active substance, have killing, dispelling and larva growth inhibiting effects on root-knot nematodes of vegetables, has sterilization and antibiosis effects on the root-knot nematodes of the vegetables, and also has disease prevention and disinfection effects. The composition and the preparation have the characteristics of good insecticidal and root-knot nematode dispelling effects, high selectivity, safety and stability to human and animals, no medicine residual, no pollution to the environment, and no damages to crops.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a composition for preventing and controlling root-knot nematodes, a preparation for preventing and controlling root-knot nematodes and applications thereof. Background technique [0002] Root-knot nematode is a highly specialized omnivorous plant pathogenic nematode. The aboveground part of the damaged plant grows short and slow, with abnormal leaf color, few fruits, low yield, and even premature death of the plant. Nematodes have a wide range of hosts and are extremely harmful to various melons such as watermelons, cucumbers, and muskmelons. Due to the long growth cycle of melon fruits, daily management is more difficult. In the market, the price of melon fruits is much higher than that of vegetables. Once the root-knot nematode is invaded, the economic loss caused will be even greater. [0003] At present, chemical agents are mostly used to control root-knot ne...

AI Technical Summary

Problems solved by technology

These pesticide preparations have a strong and unpleasant smell, and are generally not easy to volatilize and degrade, which easily endangers the safety of humans and animals, and seriously affects environmental sanitation and safety.

For various melon fruits, such as watermelon, muskmelon, Hami melon, etc., since most of them are directly edible varieties, pesticide residues are difficult to remove, and the harm is even greater

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