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Agrochemical composition for foliage treatment

A technology of pesticide composition, stem and leaf, applied in the field of pesticide composition for stem and leaf treatment, can solve the problems of technical application of pesticide active ingredients, unknown preparation technology, etc., and achieve the effect of high safety and wide weeding spectrum

Inactive Publication Date: 2016-10-12
KUMIAI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the microencapsulation of pesticide active ingredients has been difficult to apply technically in farms such as dry fields with insufficient water so far.
That is, until now, there has been insufficient knowledge of microencapsulated agricultural chemical compositions for the purpose of phenomena other than elution control. In particular, roxasulfone, which has applicability in soil treatment, can also be microencapsulated. The formulation technology for stem and leaf treatment is completely unknown

Method used

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  • Agrochemical composition for foliage treatment
  • Agrochemical composition for foliage treatment
  • Agrochemical composition for foliage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] 100 parts by weight of a 1% polyvinyl alcohol aqueous solution was added by dissolving 1 part by weight of roxasulfone and 2 parts by weight of ethyl cellulose in 100 parts by weight of methylene chloride. product name "TKROBOMIX", hereinafter the same) at a rotation speed of 6000 rpm for 10 minutes. Next, the mixture was stirred slowly at 60° C. for 3 hours to distill off methylene chloride, thereby obtaining a microencapsulated roxasulfone-containing stem and leaf treatment in which ethyl cellulose was a concealed substance. Pesticide composition. The composition is spherical particles with an average particle diameter of 12 μm.

Embodiment 2

[0097] In 100 parts by weight of 1% polyvinyl alcohol aqueous solution, add a solution formed by dissolving 1 part by weight of roxasulfone and 2 parts by weight of polyester resin in 100 parts by weight of dichloromethane, and stir for 10 minutes with a dissolver at 6000 rpm . Next, the mixture was stirred slowly at 60° C. for 3 hours to distill off methylene chloride, thereby obtaining a microencapsulated agrochemical combination for stem and leaf treatment containing roxasulfone, in which polyester is a concealed substance. thing. The composition is spherical particles with an average particle diameter of 11 μm.

Embodiment 3

[0099] 2.5 parts by weight of polymethylene polyphenyl polyisocyanate (manufactured by Tosoh Corporation, trade name "MillionateMR-100"), diisobutyl adipate (manufactured by Kao Corporation, trade name "VINYCIZER" 10 parts by weight of 40 ") and 50 parts by weight of 1% polyvinyl alcohol aqueous solution were added with 1 part by weight of roxasulfone, and stirred with a dissolver at 2000 rpm for 3 minutes. Next, the mixed liquid was stirred slowly at 50° C. for 1 hour, thereby obtaining a microencapsulated agrochemical composition for stem and leaf treatment containing roxasulfone, in which polyurea was a concealed substance. The composition is spherical particles with an average particle diameter of 20 μm.

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PUM

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Abstract

The purpose of the present invention is to provide an agrochemical composition for foliage treatment, which does not cause chemical damage due to deposition on cultivated crop and is highly safe when carrying out foliage treatment on farmland using pyroxasulfone, and also has a broad herbicidal spectrum. Provided is an agrochemical composition for foliage treatment that includes pyroxasulfone and a concealing substance for concealing the pyroxasulfone, and the agrochemical composition for foliage treatment is characterized in that the concealing substance microencapsulates or covers the pyroxasulfone such that there is no chemical damage due to deposition on cultivated crop during foliage application.

Description

Technical field [0001] The present invention relates to a pesticide composition for stem and leaf treatment, which can maintain long-term efficacy and reduce or prevent phytotoxicity during stem and leaf treatment. Background technique [0002] It is known that Pyroxasulfone (Pyroxasulfone) has a high weeding effect on the following grasses: barnyardgrass, crabgrass, setaria, bluegrass, sorghum, wheatgrass, and flowering ryegrass. (Italian ryegrass), Swiss ryegrass (straight ryegrass), oats, wormwood, wild oat and other rice weeds are mainly weeds, sorrel, green amaranth, white pigweed, chickweed, amaranth, golden noon flower , guinea field soap locust, ragweed, morning glory, pigweed, Arabian wormwood, eyelash wormwood, sageweed, viola and other broad-leaf weeds, cyperus rotundus, oil sedge, short-leaf water centipede , sedge, sedge and other perennial and annual sedge weeds. In addition, it has a wide range of herbicidal spectrum. [0003] However, when Roxasulfone is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N25/12A01N25/26A01N25/32A01N43/80A01P13/02
CPCA01N43/80A01N25/28A01N57/20A01N25/12A01N25/14A01N25/04
Inventor 新井宏和中岛由纪子池内利佑佐藤敦
Owner KUMIAI CHEM IND CO LTD
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