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Nematicide composition

A technology of nematicides and compositions, which is applied in the field of compound nematicides containing fluthiazol and abamectin B2, can solve the problems of large phytotoxicity of plant roots, increased use costs, and the loss outweighs the gain, and achieves Low toxicity, extended service life, and long-lasting effect

Inactive Publication Date: 2018-04-20
天津市华宇农药有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, thiazophosphine is the most widely used. Although the control effect on nematodes is better, thiazophosphine is also very harmful to plant roots. Experiments have shown that the use of thiazophosphine has a significant impact on plant root length, root fresh weight, and root activity. It produces obvious inhibitory effect, which is 20-40% different from that of untreated plants. Improper use of drugs will outweigh the gains
[0004] Abamectin (the main component is Avermectin B1a+B1b, of which B1a is not less than 90% and B1b is not more than 5%) also has a good control effect on root-knot nematodes, and has almost no harm to the root system of the plant, so it is ideal High-efficiency, low-toxic and pollution-free nematicide, but the half-life of abamectin in the soil is very short, and the effective insecticidal period is only about 15 days. During the crop growth period, repeated application of pesticides is required, which not only increases labor intensity but also increases The cost

Method used

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  • Nematicide composition
  • Nematicide composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 5% fluthiazol+75% abamectin B2 wettable powder

[0028]

[0029] According to the requirements of the above formula, the original drug, various additives and fillers are fully mixed, and pulverized by a jet mill until the fineness reaches the standard value (below 25 μm), and the wettable powder product of the composition is obtained.

Embodiment 2

[0030] Example 2 10% fluthiazol+15% abamectin B2 wettable powder

[0031]

[0032] According to the requirements of the above formula, the original drug, various additives and fillers are fully mixed, and pulverized by a jet mill until the fineness reaches the standard value (below 25 μm), and the wettable powder product of the composition is obtained.

Embodiment 3

[0033] Example 3 5% fluthiazol+30% abamectin B2 water dispersible granules

[0034]

[0035] Mix the above-mentioned original medicine with powdery carrier, dispersant, wetting agent, binder and disintegrating agent in proportion, pulverize through a jet mill, then add a certain amount of water and knead, and granulate in a granulator , and then dried and sieved (according to the range of the sieve), the resulting granular product is the nematicide composition of this embodiment.

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Abstract

The invention provides a nematicide composition, and relates to an agricultural nematicide and application thereof. The nematicide composition comprises fluensulfone and avermectin B2 according to a weight ratio of 1-25 to 25-1. The nematicide composition is formed by mainly compounding the fluensulfone and the avermectin B2 according to a certain ratio, and has a significant synergistic effect; the nematicide composition is processed into missible oil, a wettable powder, a water emulsion, a suspension, a soluble liquid, a microemulsion, water-dispersible granules, granules or the like; afterthe nematicide composition is diluted into a certain number of folds, the nematicide composition is used for irrigating crop roots; the nematicide composition can significantly increase the control effect on root-knot nematodes, which is also significantly higher than that of a single preparation.

Description

technical field [0001] The invention relates to an agricultural nematicide and its application, in particular to a compound nematicide composition containing fluthiazol and abamectin B2 and its application. Background technique [0002] Root-knot nematode is a highly specialized omnivorous plant pathogenic nematode. It mainly harms the roots of various vegetables. It shows that the lateral roots and fibrous roots increase more than normal, and spherical or conical white nodules of different sizes are formed on the fibrous roots of young roots, and some are bead-shaped. 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. Root-knot nematodes are extremely harmful to crops. Generally, after the onset, the yield is affected by 10-30%, and serious cases can reach more than 50% of underground crops. Due to the stimulating and destructive effect of nematodes on host cells, the symp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/78A01P5/00
CPCA01N43/90A01N43/78
Inventor 董宝库刘娇娇高丽梅张世英王晓雨张亚男田金生张毅超寇俊杰
Owner 天津市华宇农药有限公司