Composition of dithiocyano-methane and macrolide insecticide component

A technology of dithiocyanomethane and macrolides, applied in the directions of biocides, nematicides, biocides, etc.

Active Publication Date: 2013-03-13
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among the existing nematicides, fenamifos, fenamifos, carbofuran, isofenphos-methyl, thifamifos, and chymecarb are highly toxic nematicides, and dibromochloropropane is a typical reproductive poison. Due to people's increasing concern about the environment and personal health, it is necessary to develop relatively efficient and safe agents

Method used

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  • Composition of dithiocyano-methane and macrolide insecticide component
  • Composition of dithiocyano-methane and macrolide insecticide component
  • Composition of dithiocyano-methane and macrolide insecticide component

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Dithiocyanomethane single dose, abamectin single dose, ivermectin single dose, emamectin benzoate single dose, spinosyn single dose and a certain mass ratio composition are diluted to certain different concentrations. Drop the quantitative dilution containing banana root-knot nematodes on a glass slide, and count by microscopy; use the same method to microscopically inspect the root-knot nematodes diluted with quantitative agents, microscopically count, and measure the lethal concentration LC50 of each test agent. According to Sun Yunpei's method, the co-toxicity coefficient (CTC value) of the composition is calculated, and the CTC value greater than 120 is synergistic. The specific method is as follows.

[0017] Set a single dose (A) as the standard single dose and assign its virulence index (TI) to 100, then:

[0018]

[0019]

[0020] Theoretical Toxicity Index (TTI) of the mixture = Σ TI of each single agent × percentage of single agent in the mixture

[0021]

[0022] Th...

Embodiment 2

[0026] The control effect of the composition of Example 2 on crop nematodes

[0027] Mix sterile soil and sterile river sand to form culture soil, mix in the killer composition or single agent, mix well, add water to make the water content 40%, put it in a pot, and grow 2 true leaves of cucumber The seedlings were transplanted into pots, and 7 days after transplanting, 500 second-instar larvae of Meloidogyne incognita were connected to each pot and placed in a greenhouse for quantitative watering management. Set 3 repetitions for each treatment, and set the treatment with no medicine as a blank control. After 20 days, when the blank control plant has a large number of root knots in the rhizosphere, investigate the plant height and control effect. Record the number of root knots per plant and classify them according to Liu Weizhi (1995): Grade 0, no root knots; Grade 1, 1-2 root knots; Grade 2, 3-10 root knots; Grade 3, 11-30 root knots Knot; Level 4, 31-100 root knots; Level 5,...

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Abstract

The invention relates to a composition of dithiocyano-methane and macrolide insecticide component. The macrolide insecticide component is one of abamectin, ivermectin, emamectin benzoate and pleocidin. The mass ratio of the dithiocyano-methane to the macrolide insecticide component is (0.05-50):1, and the mass sum of the dithiocyano-methane and the macrolide insecticide components accounts for 0.1-60 percent of the total mass of the composition. The composition is used for controlling nematode, is applied to crops suffering from nematode pest invasion or soil in which the crops grow, and the application dosage of the composition is 50-2000mg / Kg.

Description

Technical field [0001] The invention belongs to the field of plant protection, and particularly relates to a composition of dithiocyanomethane and macrolide insecticidal components and uses thereof. Background technique [0002] Plant parasitic nematodes are one of the infectious pathogens of plants, which are widely parasitic on the roots, stems, leaves, flowers, buds and seeds of many plants. On a global scale, the occurrence and damage of plant parasitic nematodes is becoming more and more serious with the changes in farming systems. At present, there are more than 3000 kinds of nematodes harmful to plants. At present, more than 40 kinds have been found in my country. The common ones such as root knot nematodes, cyst nematodes, pine wood nematodes, and sweet potato stem nematodes are all important agricultural pathogenic nematodes, among which root knot nematodes And cyst nematodes are the most harmful, and the main harm crops are cucumber, peanut, rice, soybean, wheat, tobacc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/48A01N43/90A01N43/22A01P5/00
Inventor 侯华民张善学陈坚王少龙陈泰龙陈其确
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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