WO1996031121A1

WO1996031121A1 - Herbicidal composition

Info

Publication number: WO1996031121A1
Application number: PCT/JP1996/000922
Authority: WO
Inventors: Shuuichi Kojima; Hideki Yamagishi; Hideo Hosaka
Original assignee: Nippon Soda Co., Ltd.
Priority date: 1995-04-06
Filing date: 1996-04-04
Publication date: 1996-10-10
Also published as: JPH08333204A

Abstract

A herbicidal composition which contains at least one adjuvant selected from the group consisting of organosilicon compounds, polyoxyethylene isotridecyl ether, polyoxyethylene dodecyl ether, beef tallow amino ether, EO/PO block copolymer, EO/PO aliphatic alcohol ethers and polyoxyethylene nonylphenyl ether (preferably organosilicon compounds, polyoxyethylene isotridecyl ether and polyoxyethylene dodecyl ether) and a nonselective herbicide (Glyphosinate + DCMU or Bialophos + DCMU). In this herbicidal composition, the expression of the herbicidal effects of the nonselective herbicide can be quickened and thus improved herbicidal effects can be achieved.

Description

Description Herbicidal composition Technical field:

The present invention relates to a herbicidal composition containing a non-selective herbicide, Kusakattosol-sapoport, which hastens the onset of action of a herbicide and enhances the herbicidal effect. Background art:

Kusakattosol is composed of glufosinate (ammonium-DL-homoalanine-4-yl (methyl) phosphine) with strong foliage treatment and DCMU with soil treatment effect: 3- (3.4) -dichlorophenyl This is a non-selective herbicide that contains 1-dimethylurea) as an active ingredient. In addition, support is viaalaphos {L12-amino_41-((hydroquinine) (methyl) phosphinoyl) butyryl L-aranyl-L-Naranium salt} It is a non-selective herbicide containing as an active ingredient, and DCMU. These herbicides have the ability to kill growing weeds as well as pre-emergence weeds, and are characterized by an extremely long weeding period.

However, the herbicidal action of these non-selective herbicides was very slow, and it was not easy to confirm the herbicidal effect at an early stage. In addition, there was also a drawback that the foliage treatment effect was weaker than that of glufosinate or bialaphos, which is one of the active ingredients of these herbicides.

An object of the present invention is to provide a new herbicidal composition in which the herbicidal effect is accelerated by compensating for such a drawback and the herbicidal effect is more reliable. Disclosure of the invention:

The present inventors have found that the use of a non-selective herbicide, kusakattosol or a support, together with an adjuvant, a humectant, accelerates the herbicidal action to a surprising extent and increases the herbicidal effect. And completed the present invention. The present invention relates to organic silicones, polyoxyethylene isodecanol ether, polyoxyethylene dodecyl ether, tallow amino ether, E0P0 procopolymer, EOZPO fat. 1 selected from the group consisting of aromatic alcohol ethers, polyoxyethylene nonylphenyl ethers, preferably organic silicones, polyoxyethylene didecanol ether, and polyoxyethylene dodecyl ether1 A herbicidal composition comprising an auxiliary agent of any kind and a nonselective herbicide, kusakattosol or a support.

In the present invention, “Kusakattosol” is a trade name of Nippon Soda Co., Ltd., a non-selective herbicide, and is a herbicide containing glufosinate and DCMU as its active ingredients. Support wettable powder is a brand name of Meiji Seika Co., Ltd., a non-selective herbicide, and is a herbicide containing viaalaphos and DCMU as its active ingredients.

The adjuvant used in the present invention is generally called a wetting agent having a function of enhancing the wettability of the leaves of a plant, and is applied as an aqueous spray mixture together with a cassatum sol or a support. can do. The concentration of the adjuvant in this aqueous jetting mixture is usually from 0.01 to 10% by weight, preferably from 0.25 to 0% by weight. The preferable water consumption is 100 to 150 L / 10a.

The auxiliary agent used in the present invention includes, for example, an organic silicon-based auxiliary agent: trade name Silwet L_77 (Nippon Konika Co., Ltd.) Or Silgard 309 (manufactured by Toray Industries, Inc., Dakota Silicone Co., Ltd.).

Examples of particularly preferred auxiliary substances for polyoxyethylene isotridecanol ether include [Product name: Genapor (Genap 01 X-0,600), Hextor Inc.] Hoechst AG)].

Examples of substances that are particularly preferred as an auxiliary substance of polyoxetylene dodecyl ether include [Sulfactant WK, Maruwa Biochemical Co., Ltd.]. BEST MODE FOR CARRYING OUT THE INVENTION (Example)

The following is an example of a biological test.

(Example 1) Greenhouse test

No. 4 pot was filled with soil, and an appropriate amount of soil mixed with crabgrass seeds was overlaid and seeded. Plant height main Hishiba 2 5 -. And grown in a greenhouse until about 3 0 cm, 0 to 2 of 5 m ² processing area places the bowl, above using a spray a chemical solution is adjusted to a predetermined amount And foliage treatment was performed uniformly within the treatment area. Spray water volume was set at 100 LZ 10 a. At 4 days, at the end of the treatment, at 14 days, and at 21 days after the chemical treatment, the degree of weed killing was evaluated according to the criteria of 0 (no effect) to ί0 (complete mortality). The results are shown in Table 1.

Table 1

Drug Formulation S Supplements Meishishiba herbicidal index

(m 1 Z 10 a) 4 D 7 D 1 4 D 2 1 D Drug 1 5 0 0 No additive 9

7 5 0 No additive 9

250 Auxiliary A 0.5% 4 6 9

5 0 0 Auxiliary A 0.5% 4 6 9

2 5 0 Scavenger B 0.5% 5 3 6 9.5 1 0

5 0 0 Auxiliary B 0.5% 3 6 99.5

7

250 Auxiliary agent C 0.5% 5 9.8.5 5 1 0 5 0 0 Auxiliary agent C 0.5% 8 1 0 1 0

2.50 Auxiliary D 0.5% 5 99.5 0500 Auxiliary D 0.5% 5 99.5 Drug 25 0 0 No additive

No. (Puki) Drug Formulation amount Auxiliary medicinal herbicidal index

(/ 10 a) 4 D D 1 4 D 2 1 D Drug 3 5 0 0 No additive 1 6 9 1 0

7 5 0 No additive 1 6 1 0 9 ί 1

ί 250 Auxiliary A 1.0% 9 9 1 0 1 0

5 0 0 Auxiliary A 1.0% 9 1 0 1 0 1 0

250 Auxiliary B 1.0% 9.1 0 1 0 1 0

5 0 0 Auxiliary B 1.0% 9 1 0 1 0 1 0

1

2 D 0 Auxiliary m C 1 7 1 ϋ 1 υ

5 0 0 Scavenger C 1.0% 9 1 0 1 0 1 0

1

250 Auxiliaries D 1.0% 8 9 1 0 1 0 \

5 0 0 Auxiliary agent D 1.0% 8 1 0 1 0 1 0

In Table 1, 4D means 4 days after treatment, 7D means 7 days after treatment, 14D means 14 days after treatment, and 21 D means after treatment 11 respectively. Also, drugs 1 2 in Table 1

3 and the adjuvant A BCD represent the following, respectively.

Drug 1: Glufosinate + DCMU (Kusakattosol: Nippon Soda Co., Ltd.) Drug 2: Glufosinate (Busta: Hexstar)

Drug 3: Vialahos DCMU (Support wettable powder: Meiji Seika Co., Ltd.) Auxiliary A: Silwet L-7 7

Auxiliary B: S y l g a r d 3 0 9

Auxiliary agent C: Genapol X-0 60

Auxiliary agent D: Surfactant WK From Table I, these are auxiliary agents compared to the case of treatment with only Xaccat sol (glufocine citrate + DCMU) or support (bialaphos + DCMU). When S i 1 wet L-77, Sylgard 309, Genapo 1 X-0.60, and Surfactant WK were added, the speed of herbicidal action and the herbicidal activity were extremely remarkable. It was shown to increase to some extent. In particular, the speed of onset of herbicidal action was significantly improved, and was comparable to that of glufosinate, which is said to have an early onset of action.

(Example 2) H field test

Main heat Sheba, Bruno Bie, Aobyu, but儍占species in which Liyuan undergrowth in the first district 2 7 m ² and Do so that drugs in the treated area and an auxiliary agent shouldering a chemical solution is adjusted to a predetermined amount formula hand injection搽The treatment was performed using a vessel. Stages of weeds during treatment include: meadowgrass (growing stage-flowering stage, plant height 15-40 cm), nobie (growing stage-flowering stage, plant height 25-60 cm), and abyss ( The growing water was the first bud stage, the plant height was 20 to 60 cm), and the amount of water applied was 150 LZ10a (drug 4 was 100 LZOa). The survey was conducted according to the standard of 0 (no effect) to 10 (complete mortality), with the degree of weed killing as the entire treatment area after 4, 15, and 29 days after chemical treatment. It is shown in the table.

Table 2 Amount of drug Formulation amount Auxiliaries Number of herbicides (total treatment area)

(m 1 Z 10 a) 4 D 15 D 29 D

I

Drug 1 2 5 0 No additive 3 7 6 (I)

1

1 5 0 0 Unattached calo 4 9 8 (-)

250 Auxiliary A 1.0% 9 8 7 (-)

250 Auxiliary B 1.0% 99.8 9.8 (-)

250 Auxiliary agent C 1.0% 9 9.59 (1)

ί

250 0 Auxiliary D 0.5% 7 9.5.9.5 (-) Drug 250 0 0 not added 8 9.58 8 (+) Drug 4 500 0 not added 8 1 0 9.8 (+) )

In Table 2, 4D means 4 days after treatment, 15D means 7 days after treatment, 29D means 29 days after treatment, and the parentheses in 29D indicate the emergence of weeds. The criteria are (1) to (+5

) That is, nothing to very much. In addition, drugs 1, 2, 4, and Agents A, B, C and D represent the following.

Drug 1: Glufosinate + DCMU (Kusakattosol: Nippon Soda Co., Ltd.) Drug 2: Glufosinate (Pasta: Hexstar)

Drug 4: Glyphosate (round-up: manufactured by Monsanto)

Auxiliary A: S i l w e t L-7 7

Auxiliary B: S y l g a r d 3 0 9

Auxiliary agent C: Genapol X-0 60

Adjuvant D: Surfactant WK As shown in Table 2, the herbicidal action and herbicidal activity were exhibited by the addition of each of the four adjuvants tested in the field as in the greenhouse test. Increased. The herbicidal period of Drug 1 with the supplement is the same as that of Drug 1 without the supplement.By adding each of the supplements A, B, C, and D to the non-selective herbicide, the active ingredient of Drug 1 is obtained. It was shown that the herbicidal activity and herbicidal activity were increased to a remarkable degree without impairing the soil treatment activity by DCMU, which is one of them.

(The invention's effect)

As described above, the herbicidal composition of the present invention contains a non-selective herbicide, kusakat sol or support, and a specific adjuvant. The herbicidal action is surprisingly fast and has an excellent herbicidal effect-industrial applicability:

The herbicidal composition of the present invention contains a non-selective herbicide and a specific adjuvant, and exhibits a surprisingly rapid herbicidal action and an excellent herbicidal effect as compared with the case where each drug is used alone. It is useful as a herbicide because it has

Claims

The scope of the claims

1. Organic silicone, polyoxyethylene tridecanol ether, polyoxyethylene dodecyl ether, tallow amino ether, E0 / P0 block copolymer, E0 P0 A herbicidal composition comprising at least one adjuvant selected from the group consisting of aliphatic alcohol ethers and polyoxyethylene nonyl phenyl ether, and a non-selective herbicide.

2. It contains one kind of adjuvant selected from the group consisting of organic silicone, polyoxyethylene isotridecanol monoether, and polyoxetylene dodecyl ether, and a non-selective herbicide. Herbicidal composition.

3. The herbicidal composition according to claim 1, wherein the non-selective herbicide is a mixture containing glufosinate and DCMU or a mixture containing bialaphos and DCMU.

4. Claim 1 0 adjuvants described. 0 1 to 1 0 weight ° ₀ nonselective herbicide aqueous spray composition for you, characterized in that it contains.