Method of enhancing biological effectiveness of plant treatment compositions

A technology of biological activity and composition, applied in the field of improving the biological activity of the above-mentioned exogenous chemical substance composition

Inactive Publication Date: 2002-07-03
MONSANTO TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies also included polyoxyethylene alkylamine surfactants

Method used

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  • Method of enhancing biological effectiveness of plant treatment compositions
  • Method of enhancing biological effectiveness of plant treatment compositions

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0176]The preparation method of the solid concentrated composition used in the present invention comprises the first step of anionic exogenous chemical substance or its salt, or above-mentioned anionic exogenous chemical substance in the form of solid particles and its salt with alkyl ether surfactant and amine surfactant The mixture of agents, optionally with other desired ingredients, is mixed with sufficient water to form a wet mixture having a viscosity suitable for the next step of the process described below. Alkyl ether surfactants can be used in powder form or melted prior to addition to the wet mix.

[0177] The above method also includes a second step of granulating the wet mixture to form wet cohesive granules, and a third step of drying the granules. Any granulation method known in the art suitable for preparing water-soluble or water-dispersible granules of exogenous chemical substances can be used; preferred methods are pan granulation and extrusion granulation. ...

Embodiment 1

[0204] Aqueous concentrate compositions were prepared containing glyphosate IPA salt and the excipient components shown in Table 1a. Heterene's CS-20 is ceteareth-20 (polyoxyethylene C with an average of 20 ethylene oxide units per molecule) 16-18 alkyl ethers). Plurafac from BASF TM A-38 is ceteareth-27 (polyoxyethylene C with an average of 27 ethylene oxide units per molecule 16-18 alkyl ethers). Ethomeen of Akzo Corporation TM T / 25 is polyoxyethylene tallow amine containing 15 ethylene oxide units on average per molecule. The lecithin used was soybean lecithin from Avanti, which contains 45% phospholipids. All components in this example are oil-in-water emulsions and were prepared by the method described below.

[0205] First lecithin is hydrated and dispersed in water to make a 15% stock solution by weight. The device used is a Fisher Sonic Dismembrator, model 550, for sonication. It is equipped with a 2.4cm probe tip, the pulse period is set to 15 seconds, and the p...

Embodiment 2

[0216] Aqueous concentrate compositions containing glyphosate IPA salt and excipient ingredients as shown in Table 2a were prepared. All compositions were oil-in-water emulsions and were prepared by the method described in Example 1, except that the hydration and dispersion of the lecithin in compositions 2-01 to 2-08 and 2-11 to 2-17 was not by ultrasound The treatment was instead microfluidized for 3 cycles using a Microfluidics International Corp. model M-110F microfluidizer.

[0217] concentrated

combination

thing

glyphosate

ga.e. / l

weight%

Lecithin

stearic acid

Butyl ester

Ethomeen

T / 25

MON

0818

CS-20

Plurafac

A-38

2-01

220

0.75

3.75

3.0

3.0

2-02

220

0.75

0.75

3.0

3.0

2-03

220

0.75

3.75

3.0

3.0

2-04

220

0.75

0.75 ...

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Abstract

A method of eliciting biological activity of an anionic exogenous chemical substance, for example the herbicide glyphosate, is provided. This method comprises preparing a plant treatment composition having the anionic exogenous chemical substance dissolved or dispersed in water, together with (a) an alkylether surfactant component consisting of one or more surfactants each having the formula: R<12>-O-(CH2CH2O)n((CHR)2O)m-R<13> wherein R<12> is an aliphatic saturated or unsaturated hydrocarbyl group having about 16 to about 22 carbon atoms, n is an average number of about 5 to about 100, m is an average number of 0 to about 5, one R in each-((CHR)2O)-group is hydrogen and the other R is methyl, and R<13> is a hydrogen, C1-4 alkyl or C2-4 acyl group; and (b) an amine surfactant component. The weight ratio of the alkylether surfactant component to the amine surfactant component is about 1:10 to about 10:1; and the alkylether and amine surfactant components are present in total in an adjuvant amount of about 0.05 to about 0.5 parts by weight per part by weight of the anionic exogenous chemical substance, expressed as acid equivalent. The method further comprises applying the plant treatment composition to foliage of the plant within a short period prior to rain or activation of overhead irrigation on the plant.

Description

field of invention [0001] The present invention relates to exogenous chemical substances applied to the foliage of plants, and more particularly to methods of increasing the biological activity of such exogenous chemical substance compositions. [0002] The term "exogenous chemical substance" as used herein means a chemical substance, whether natural or synthetic, which is applied to a plant to obtain a desired biological activity. The term "biological activity" as used herein means the result of inducing a stimulatory, inhibitory, regulatory, therapeutic, toxic or necrotic response on the plant itself or on pathogens, parasites or feeding organisms present in or on the plant. Examples of exogenous chemical substances include, but are not limited to, chemical pesticides (such as herbicides, algicides, fungicides, bactericides, viricides, insecticides, acaricides, nematicides, and molluscicides) Agents), plant growth regulators, fertilizers and nutrients, gametocides, defolian...

Claims

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Application Information

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IPC IPC(8): A01N25/00A01N25/30A01N33/22A01N57/20
CPCA01N25/30A01N57/20A01N43/653A01N41/06A01N39/04A01N37/48A01N33/22A01N25/00A01N2300/00
Inventor R·J·布林克A·D·迪斯茨卢斯基C·R·琼斯R·M·克拉默N·R·帕拉斯R·O·拉德克A·J·I·瓦德J·L·吉尔莱斯皮X·C·徐
Owner MONSANTO TECH LLC
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