JPS6048905A - Herbicidal composition - Google Patents

Abstract

PURPOSE:A herbicidal composition, containing a specific pyrazolesulfonylurea derivative (a herbicide) and a specific herbicide, e.g. N-phosphonomethylglycine together, and having synergistically enhanced herbicidal effects of the respective herbicides. CONSTITUTION:A herbicidal composition containing (A) a compound of the formula (A, B and R are lower alkyl; Z is N or CH; X and Y are lower alkyl or lower alkoxyl) and (B) one of N-phosphonomethylglycine, ammonium-(3-aminocarboxypropyl)-methyl phosphinate or (2-amino-4-methylphosphino-butyryl)-alanylalanine in an amount of 0.0001-50pts.wt., preferably 0.001-10pts.wt. component (A) based on 1pt.wt. component (B) as active constituents. The above-mentioned composition is capable of exhibiting improved synergistic effect and controlling completely weeds ranging from annual to perennial weeds even in small amounts of the herbicidal chemicals. Thus, the amounts of the above-mentioned respective herbicidal chemicals to be used can be reduced.

Description

[Detailed description of the invention] The present invention is based on the general formula (■): Eight [In the formula, A, B, and R represent a lower alkyl group.

2 represents a nitrogen atom or a CH group. X and Y each independently represent a lower alkyl group or a lower alkoxy group. ] Pyrazolesulfonylurea derivative represented by and N-phosphonomethylglycine (hereinafter referred to as glyphosate),
Ammonium-(3-aminocarboxyprobyl)-methylphosphinate (hereinafter referred to as glufosinate) or (2-amino-4-methylphosphino-butyryl)
The present invention relates to a herbicidal composition containing as an active ingredient one type of alanylalanine (hereinafter referred to as Bialafos).

As a result of many years of research and development into herbicides, a wide variety of herbicides have been put into practical use, and these herbicides have contributed to labor-saving weed control operations and improved productivity of agricultural and horticultural crops. Even today, there is a demand for the development of new drugs with better herbicidal properties.

The compound represented by the general formula H) exhibits an excellent herbicidal effect at a very low dose compared to conventional herbicides, but the present inventor has found that the herbicidal effect of the compound represented by the general formula (T) is As a result of conducting research in order to increase They discovered that a synergistic herbicidal effect appears and completed the present invention.

This synergistic effect is great, and the composition of the present invention can completely control both annual and perennial weeds with a low dose, making the present invention extremely useful. Moreover, the above-mentioned mixed application also makes it possible to reduce the amount of the conventionally used herbicide contained in the composition of the present invention, which is extremely useful.

The herbicide composition of the present invention is effective even when treated before and after weed germination, and is highly effective when treated with soil or with foliage and soil treatment. It can also be applied to control various weeds in agricultural and horticultural fields such as fields and orchards, as well as non-agricultural lands such as playgrounds, vacant lots, forestlands, tank yards, and railway edges, and exhibits great economic effects in weed control.

Compositions according to the invention may vary depending on the relative activity of each component.
Generally, 0.0001 to 50 parts by weight, preferably 0.001 to 10 parts by weight of the compound represented by general formula (1) per 1 part by weight of glypose-1, glufosinate, or bialaphos.
Contains parts by weight. In many cases, the greatest advantage of the combined herbicides of the invention is when the proportion of compounds of formula (I) is relatively low compared to other herbicides, e.g. The compound represented by (1) is o, ooi to 0.
It is obtained in 1 part by weight.

The amount of ff1l of the mixture to be applied will depend on a number of factors, such as the type of the particular hM substance whose growth is to be inhibited, but in general amounts of 0.001 to] OKg/ha are usually suitable. Those skilled in the art can readily determine appropriate usage rates by routine, standardized tests without the need for extensive experimentation.

The compositions of the invention are preferably used in the form of a composition in which the active ingredient is mixed with a carrier consisting of a solid or liquid diluent. Preferably, the composition further comprises a surfactant.

Next, Table 1 shows representative examples of the compound represented by the general formula (1) in the present invention. Although the following compounds are included in the compounds represented by the general formula (1), they are also included in the compounds represented by the general formula (1).
The compounds represented by 1) are not limited to these.

Table 1 in the margin below Me: Methyl group Et: Ethyl group Individual active compounds often exhibit drawbacks in their herbicidal activity, but in such cases, the herbicidal activity when two types of active compounds are combined is When the activity of two compounds is greater than the simple sum of their respective activities (expected activity), this is called synergism. The expected activity of a particular combination of two herbicides can be calculated as follows.

(Colby S, R, Calculation of synergistic and antagonistic responses of herbicide combinations rkleed J vol. 15, pp. 20-22,
(See 1967) α: Inhibition rate when herbicide A is treated at a Kg/ha amount β: Suppression rate when herbicide B is treated at bKg/ha amount E: Herbicide A is aKg7ha, weed control Agent B bKg/ha
If the expected inhibition rate, that is, the actual inhibition rate when treated with the above amount, is greater than the above calculation, it can be said that the combined activity exhibits a synergistic effect.

Hereinafter, the present invention will be explained in more detail with reference to Examples.
The compounds, dosage amounts, dosage forms, etc. in the present invention are not limited to the examples.

In addition, all "parts" mean parts by weight.

Distributor Flowable Compound No. 1 -------------------
−−−−−− 5 parts glyphosate −−−−−−−−111−−−−−−−−−−20 parts Ageliseal T3−
71.0------ 10 parts (Nonionic surfactant: Kao Atlas Shin) Brand name) Lunox I OOOC-
---1--------0, 5 parts (anionic surfactant: Toho Chemical (trade name) 1% Rhodobol water----
−−−−−−−−−−−−−−−−20 parts (thickener: Lone Boulin product name) water −−−−−−−−−−−
-------44. 5 parts or more are mixed uniformly to form a flowable agent.

Flowable Compound Destruction 2 −−−−−−−−−−−−−−−−−−−
−−−−−−−−−−0,' 5 part gripose 1~
−−−−−−1−=−−−−−−−−−−−−−−−2
5 parts Ageli Seal B -710--9, 5 parts (Nonionic surfactant: Kao Atlas 01 brand name) Lunosox 1000 C-----0, 5 parts (
Anionic surfactant: Toho Chemical ■Product name) 1% Rhodobol water −−−−−−−−−−−−−−−20
Part (thickener: Lone Boulin product name) Water ~---
--------------44. 5 parts or more are mixed uniformly to form a flowable agent.

ML scrap skin l Flowable compound No. 6 ----------11------
−−−−−−−−−1 part glyphosate −1−−−−−
−−−−−−−−−−−−−−−−1・−25 parts Ageli Seal B-710−−−−−−−−−−−− 10 parts (
Non-ionic surfactant: Kao Atlas■Product name) Lunosox 1000 C-1--------・---------・-0
, 5 parts (anionic surfactant: Toho Chemical (■Product name)
1% rhodobol water
-----20 parts (thickener: Lone Boulin product name)
Water −−−−−−−−−−−−−−−−−−−43,
Mix 5 parts or more uniformly to make a flowable agent.

Sake settles- Flowable compound positive 3
--------, 2nd part glufosinate------
-1---------
Non-ionic surfactant - Kao Atlas brand name) Lunosox 100OC・-----0, 5 parts (anionic surfactant: Toho Chemical brand name) 1% Rhodobol water--- −−−−−−−−−−−−−−−−−−−20 parts (thickener: product name of Lorne Boulin Co.) Water −−−11−−−−−−−−−−−− 44. 5 parts or more are mixed uniformly to make a flowable agent.

11th example Flowable compound interval 4
−−−−−−−− 1 part gluposinate −−−−−−−
−−−−−−−−−−−−−−1,8 parts Ageli Seal B
-710--------- 10 parts (Nonionic surfactant: Kao Atlas Q not yet a trade name) Lunosox 100
0 C--1 to ---0.5 parts (anionic surfactant: Toho Chemical ■trade name) 1% Rhodobol water ---
−−〜−−−−−−−−−−−−20 parts (thickener: product name of Lorne Boulin Co.) Water −1−−−−−−−−−
------- 50.5 parts or more are mixed uniformly to form a flowable agent.

Father plate t Floor λ compound shade 8
−−−−−−−Two-part glufosinate −−−−−−−−
-----------23 parts Ageli Seal B-710-
---------- 1.0 part (nonionic surfactant -
Kao Atlas Q'l) Product name) 0 Lunosox 100OC-------------0,
5 parts (anionic surfactant: Toho Chemical brand name) 1%
Rhodoball water --・−−−−−−−−−−−−−−−−
20 parts (thickener: Lone Boulin Co., Ltd. product name) water -1---・----------------------44, mix 5 parts or more uniformly, and mix with the flowable agent. do.

Kaikait Flowable Compound NQ, 1------------------
−−−−−−−−−− 1 part Bialaphos −・〜・−・
----1・-----35 parts Ageli Seal B
-710-・----5 parts (Nonionic surfactant: Kao Atlas ■Product name) Lunosox 1000 C
−−−−−−−−−−−−−−0, 5 parts (anionic surfactant: Toho Chemical brand name) 1% Rhodobol water -
−−−−−−−−−−−−−−−−14 parts (thickener: product name of Lorne Boulin Co.) Water −1−−−−−・−・−
......44.5 parts or more are mixed uniformly to form a flowable agent.

No. 1 example j - Flowable compound positive 7 -------------
−−−−−−−−− 5 parts Bialaphos −−−−−−−
----------------25 parts 1 Agelisil B-710-He---5 parts (nonionic surfactant: Kao Atlas brand name) Lunosox 1000 C----0.5 parts (anionic surfactant: Toho Chemical ■trade name) 1% rhodobol water ---
−−−−−−−−−−−−−−20 parts (thickener: product name of Lorne Boulin Co.) Water −−−1−−−−−−−−・
----44.5 parts or more are mixed uniformly to form a flowable agent.

Hasun Plate Weeding effect test by stem leaf and soil treatment Edge 15cm
Fill a plastic box 12 cm wide and 6 deep with sterilized diluvial soil, plant 5 rhizomes each cut into 10 cm pieces of rhizomes collected from the field, and cover with about 1.5 cm of soil. did. After 30 days of planting, the raw active ingredients were uniformly sprayed on the foliage and soil surface at a predetermined ratio. The chemical solution used for spraying was the '1!3 clouding agent of the above formulation example diluted with water and sprayed using a small sprayer over the entire surface of the soil and the stems and leaves of various weeds. Four weeks after spraying the chemical solution, the weight of the above-ground living weeds was weighed, and the ratio of the remaining weeds to the weight of surviving weeds in the untreated area was expressed as a percentage, and the killing effect was judged according to the following criteria. The results are shown in Tables 2 and 3.

Score Weed killing rate 0 0-9% 1 10-19% 2 20-29% 3 30-39% 4 40-49% 5 50-59% 6 60-69% 7 70-79% 8 80-89% 9 90 ~99% 10 100% 3 Table 2 4 15 Table 3 (Continued) 6 Table 3 (Continued) In the table, the calculated values indicate the expected values calculated from the formula of (:olby).

As is clear from the above table, the composition of the present invention has greater synergistic herbicidal activity than the simple sum of the activities of the compound represented by general formula (I) and the conventionally known herbicides. Furthermore, target weeds can be completely controlled with a low dose.

Patent applicant: Nissan Chemical Industries, Ltd. 7

Claims (1)

[Claims] General formula (■): 8 [In the formula, A, B, and R represent a lower alkyl group. 2 represents a nitrogen atom or a CIT group. X and Y each independently represent a lower alkyl group or a lower alkoxy group. ] A pyrazole sulfonylurea derivative represented by
-Amino-4-methylphosphino-butyryl)-alanylalanine as an active ingredient.