Nematicidal composition containing fosthiazate

A thiazophosphine-containing, nematicidal technology, which is applied in the directions of nematicides, biocides, biocides, etc., can solve the problems that the combination of thiazophosphine and oleander extract has not been reported, and can delay the resistance of diseases and insect pests, reduce the The effect of usage and cost reduction

Inactive Publication Date: 2018-01-16
赖丰光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The combination of thiazophosphine and oleander extract has not been reported

Method used

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  • Nematicidal composition containing fosthiazate
  • Nematicidal composition containing fosthiazate
  • Nematicidal composition containing fosthiazate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one oleander extract extracts

[0026] Extraction of oleander leaf extract: fresh oleander leaves are washed, dried, cut into fragments of about 1 cm 2 , and the fragments are dried in a 60°C oven with a glass dish holding device, and then pulverized. Take a group of 2 g of dried and crushed leaves, soak each group with 10 ml of 95% ethanol in a sealed container at 60°C for 48 hours, then filter with filter paper, combine the filtrates, and then extract to extract the oily extract of oleander leaves. Ethanol was recovered by distillation, and the ethanol extract of oleander leaves was obtained according to the above preparation method.

[0027] The extraction method of the ethanol extract of oleander leaves is detailed in CN 103392745 B.

[0028] Extraction of oleander bark extract: fresh oleander bark is washed, dried, cut into fragments of about 1cm 2 , and the fragments are dried in a 60°C oven with a glass dish holding device, and then pulverized. Take ...

Embodiment 2

[0030] The preparation of embodiment two nematicide compositions

[0031] Composition No. 1: Take 180 parts of ethanol extract of oleander leaves, 20 parts of thiazolyl phosphine, 50 parts of diethylene glycol, 10 parts of EOPO block polymer, and 140 parts of deionized water; first mix thiazolyl phosphine with diethylene glycol After phosphine thiazolyl is fully dissolved, add the ethanol extract of oleander leaves and related additives, then mix the above ingredients evenly, place them in a container and cut them with a shearing machine at 7000 revolutions per minute for 25 minutes, and then the oleander is prepared. Nematode composition.

[0032] Composition No. 2: Take 150 parts of ethanol extract of oleander leaves, 30 parts of thiazophosphine, 60 parts of sec-butyl acetate, 10 parts of chitosan, 10 parts of sodium lignosulfonate, and 140 parts of deionized water; Mix phosphine thiazolyl with sec-butyl acetate, add ethanol extract of oleander leaves and related additives ...

Embodiment 3

[0035] Example 3 Determination of Indoor Toxicity Activity Combined Effect of Oleander Extract and Thiazophosphine on Nematodes Mixed in a Certain Proportion

[0036] Take the soybean root system infected with soybean cyst nematode, rinse it gently with tap water, gently pick out the oocysts on the diseased root with a dissecting needle, put it into a small petri dish with a diameter of 6cm, add a small amount of sterile water, and keep the temperature at 25°C Incubate in the box for 3-4 days, collect the 2nd instar larvae, and add sterile water to prepare it into a suspension with a certain concentration (about 500 / ml) for future use.

[0037] Take the rice plants infected by O. oryzae A. oryzae, rinse them gently with tap water, gently pick out the oocysts on the leaf axils of the diseased plants with a dissecting needle, put them into a small petri dish with a diameter of 6 cm, add a small amount of sterile water, Incubate in an incubator at ℃ for 3-4 days, collect the 2nd in...

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Abstract

The invention discloses a nematicidal composition containing fosthiazate. The nematicidal composition contains active ingredients, i.e. an oleander extract and the fosthiazate, wherein the oleander extract is extracted from oleander leaves or barks; the oleander extract and the fosthiazate are mixed to have a synergistic effect on soybean cyst nematode and aphelenchoides besseyi Christie in a certain proportional region; the mass fraction proportion of the oleander extract to the fosthiazate is (50 to 1) to (1 to 20), preferably (30 to 1) to (1 to 5), further preferably (9 to 1) to (5 to 1), and most preferably (9 to 1 and (5 to 1). The nematicidal composition can be also processed into a pesticide preparation comprising accessory ingredients and active ingredients, wherein the mass fraction percentage content of the oleander extract and the fosthiazate in the composition is 1 percent to 95 percent, and the balance is the pesticide accessory ingredients. The nematicidal composition issuitable for preventing and controlling crop nematodosis such as chlorosis caused by the soybean cyst nematode and plant nematodosis such as aphelenchoides besseyi Christie caused by the aphelenchoides besseyi Christie.

Description

technical field [0001] The invention relates to a nematocidal composition containing thiazolyl phosphine, which contains active ingredients oleander extract and thiazolyl phosphine; it belongs to the field of botanical pesticides and chemical pesticide synergistic compositions. Background technique [0002] Thiazophosphine (fosthiazate), an organophosphorus nematicide, acts by inhibiting the acetylcholinesterase of pests. It has good systemic properties and is mainly used for the control of nematodes and aphids. After 2 months of use, thiazophos can still reach the lethal concentration of root-knot nematodes in the soil, and can still reduce the activity of nematodes after 3 months. [0003] Oleander (scientific name: Nerium indicum Mill.) is an evergreen erect large shrub of the Nerium family Nerium genus, up to 5 meters high, with gray-green branches, ribs on young branches, micro-hair, and hair loss when old. 3-4 leaves in whorls, dark green on the leaf surface, light gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N57/32A01P5/00
Inventor 不公告发明人
Owner 赖丰光
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