JPS6048909A - Herbicidal composition - Google Patents

Abstract

PURPOSE:A herbicidal composition, containing a specific pyrazolesulfonylurea derivative and an ammonium-ethyl-carbamoyl phosphonate together, and having synergistically enhanced herbicidal effects of the respective herbicides. CONSTITUTION:A herbicidal composition containing (A) a pyrazolesulfonylurea derivative expressed by 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) ammonium-ethyl-carbamoyl phosphonate in an amount of 0.0001-50pts.wt., preferably 0.001-10pts.wt. component (A) based on 1pt.wt. component (A) as active constituents. The above- mentioned composition is capable of exhibiting improved synergistic weeding 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

【発明の詳細な説明】 本発明は一般式（Ｔ）： 八 〔式中Ａ、ＩＩ、Ｒは低級アルキル基を示す。[Detailed description of the invention] The present invention relates to the general formula (T): Eight [In the formula, A, II, and R represent a lower alkyl group.

Ｚは窒素原子もしくはＣＩ＋基を示す。ＸおよびＹはそ
れぞれ独立して、低級アルキル基または低級アルコキシ
基を示す。〕 で表されるピラゾールスルホニルウレア誘導体とアンモ
ニウム−エチル−カルバモイルホスホネート（以下ホサ
ミンと称する。）とを有効成分として含有することを特
徴とする除草用組成物に関する。Z represents a nitrogen atom or a CI+ group. X and Y each independently represent a lower alkyl group or a lower alkoxy group. ] The present invention relates to a herbicidal composition containing a pyrazolesulfonylurea derivative represented by the following and ammonium-ethyl-carbamoylphosphonate (hereinafter referred to as fosamine) as active ingredients.

長年にわたる除草剤の研究開発のなかから多種多様な薬
剤が実用化され、これら除草剤は５：１を草防除作業の
省力化や農園芸作物の生産性向−ヒに寄与してきた。今
日においても、より優れた除草特性を有する新規薬剤の
開発が要望されている。Through 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 savings in weed control work and improved productivity of agricultural and horticultural crops by a ratio of 5:1. Even today, there is a demand for the development of new drugs with better herbicidal properties.

一般式（Ｔ）で表される化合物は従来の除草剤に比して
非常に低薬量で優れた除草効果をあげるが本発明者は、
前記一般式（Ｉ）で表される化合物の除草効果を増大さ
せるべく研究を行った峙果、一般式（Ｉ）で表される化
合物に、従来使用されている前記除草剤を配合すると、
それぞれの除草効果が単に相加的にえられるのみならず
、相乗的殺草効果が現れる事を見出し本発明を完成した
。The compound represented by the general formula (T) has excellent herbicidal effects at a very low dose compared to conventional herbicides, but the present inventors
Research has been conducted to increase the herbicidal effect of the compound represented by the general formula (I), and when the conventionally used herbicide is added to the compound represented by the general formula (I),
The present invention was completed by discovering that the herbicidal effects of each species are not only additive, but also synergistic.

この相乗効果は大きく、本発明組成物により、低薬量で
一年生雑草から多年生雑草まで完全に防除でき、本発明
の有用性は非常に大きい。また上記の混合施用によって
、本発明組成物中に含まれる従来用いられてきた前記除
草剤の使用薬量の低減をも、可能とし、極めて有用性が
高い。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, and is extremely useful.

本発明除草剤組成物は、雑草の発芽前および発芽後に処
理しても効果を有し、土壌処理、茎葉兼土壌処理でも高
い効果が得られる。畑地、果樹園などの農園芸分野及び
運動場、空き地、林地、タンクヤード、線路端などの非
農耕地における各種雑草の防除にも適用でき、雑草防除
にあたって大きな経済的効果を示す。The herbicide composition of the present invention is effective even when treated before and after weed germination, and is highly effective when treated in soil or in 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.

本発明による組成物は各成分の相対的活性にも、１；る
が、一般にはボサミンを１重量部当たり一般式（’　、
Ｔ　）で表される化合物ｏ、ｏｏｏ＋〜５ｏ市量部、好
適には０．００１〜１０重量部含んでいる。多くの場合
本発明の配合除草剤の最高の利点は式（１）で表される
化合物の割合が他の除草剤よりも比較的低い時、例えば
他の除草剤１重量部当たり一般式（１）で表される化合
物が０．００１〜０．１重量部のときに得られる。The composition according to the present invention also depends on the relative activity of each component; however, in general, bosamine is added per part by weight of the general formula (',
It contains 0.001 to 10 parts by weight, preferably 0.001 to 10 parts by weight of the compound represented by T) o, ooo+ to 5o. In many cases, the greatest advantage of the combined herbicide of the invention is when the proportion of the compound of formula (1) is relatively low compared to other herbicides, e.g. ) is obtained when the amount of the compound represented by 0.001 to 0.1 part by weight is 0.001 to 0.1 part by weight.

適用すべき混合物の量は、多数の因子、例えば生育を阻
止すべき特定の対象植物の種類などにより左右されるが
、一般に０．００１〜１１０１（／ｈａの量が普通は適
当である。当業者であれば標準化された通常のテストに
より特に多数の実験を行わなくても適当な使用割合が容
易に決定出来る。The amount of mixture to be applied will depend on a number of factors, such as the particular species of target plant to be inhibited, but generally amounts of 0.001 to 1101/ha are usually suitable. A person skilled in the art can easily determine the appropriate usage rate by using standard and ordinary tests without having to perform a large number of experiments.

本発明組成物は、活性成分を固体または液体希釈剤から
なるキャリヤーと混合した組成物の形態で使用するのが
好ましい。組成物は更に界面活性剤を含むのが好ましい
。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.

次ぎに本発明における一般式（Ｉ）で表される化合物の
代表例を第１表に示す。以下の化合物は一般式（１）で
表される化合物に包含されるものではあるが、一般式（
１）で表される化合物はこれらに限定されるものではな
い。Next, Table 1 shows representative examples of the compounds represented by the general formula (I) 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.

以下余白 第１表 Ｍｅ：メチル基　Ｅｔ：エチル基 個々の活性化合物は、その除草活性にそれぞれ欠点を示
す場合が多くあるが、その場合２種の活性化合物を組合
せた場合の除草活性が、その２種の化合物の各々の活性
の単純な合計（期待される活性）よりも大きくなる場合
にこれを相乗作用という。２種の除草剤の特定組合せに
より期待される活性は、次のようにして計算することが
できる。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.

（Ｃｏｌｈｙ　Ｓ、Ｒ，除草剤の組合せの相乗及び拮抗
作用反応の計算ｒＷｅｅｄＪ　１５巻２０〜２２頁、１
９６７年を参照）α：除草剤Ａをａ　Ｋｇ　／　ｈａの
量で処理した時の抑制率 β：除草剤ＢをｂＫｇ／ｈａの量で処理した時の抑制率 Ｅ：除草剤ＡをａＫｇ／ｈａ、除草剤ＢをｂＫｇ／ｈａ
Ｏ量で処理した場合に期待される抑制率即ち、実際の抑
制率が上記計算より大きいならば組合せによる活性は相
乗作用を示すということができる。(Colhy S, R, Calculation of synergistic and antagonistic reactions of herbicide combinations rWeedJ vol. 15, pp. 20-22, 1
(see 967) α: Inhibition rate when herbicide A is treated at an amount of a Kg/ha β: Inhibition rate when herbicide B is treated at an amount of bKg/ha: Herbicide A is a Kg/ha ha, herbicide B bKg/ha
If the expected inhibition rate when treated with the amount of O, that is, the actual inhibition rate is greater than the above calculation, it can be said that the combined activity exhibits a synergistic effect.

以下本発明を実施例によりさらに具体的に説明するが、
本発明における化合物、製剤量、剤型等は実施例のみに
限定されるものではない。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.

尚、「部」は全て重量部を意味する。In addition, all "parts" mean parts by weight.

況治１り土　フロアブル 化合物Ｎｏ、　１−−−−−−−−−−−−−−−−−
−−−−−−−−２．５部ホサミン　−−−−−−−−
−’−−−−−−−−−−３５部アゲリシールＢ　−７
１０−−−−−−−−−−−１０部（非イオン性界面活
性剤：花王アトラス側商品名）ルノソクス１０００　Ｃ
−−−−−−−−−０、５部（アニオン性界面活性剤：
東邦化学（番増商品名）１％ロドボール水−＝−−一一
−−−−一−−−−−−−−−・−２０部（増粘剤：ロ
ーン・ブーラン社商品名）水　−−−−−−−−−−−
−一一−−−、−３２部以上を均一に混合し、フロアブ
ル剤とする。Kyōji 1ri Soil Flowable Compound No. 1------------------
−−−−−−−−2.5 parts fosamine −−−−−−−−
-'---------35 parts Ageli Seal B -7
10 parts (nonionic surfactant: Kao Atlas brand name) Lunosox 1000 C
----------0, 5 parts (anionic surfactant:
Toho Chemical (Banmasu brand name) 1% Rhodobol water - = - - 11 - - - - 1 - - - - - - - 20 parts (thickener: Lone-Boulin brand name) water - −−−−−−−−−−
-11---, -32 parts or more are mixed uniformly to form a flowable agent.

酒ｄ１す１　フロアブル 化合物Ｎｏ、３　−・−−−−−−−−−−−−−−−
−−−−−−−−−２、５部ホサミン　−−−−−−−
−−−−−−−−−−４０部アゲリシールＢ−７１０−
−−−−−−−−−−　．５部（非イオン性界面活性剤
：花王アトラス側商品名）ルノソクス１０００　Ｃ−−
−−−−−−−−０、５部（アニオン性界面活性剤：東
邦化学ａ…商品名）１％ロドボール水−・−−−−−−
−−−−−−−−−−２０部（増粘剤：ローン・ブーラ
ン社商品名）水　−−−一・−−−−−・−−−−−−
・−３２部以上を均一に混合し、フロアブル剤とする。Sake d1s1 Flowable compound No. 3 -・----------------
−−−−−−−−−2, 5 parts fosamine −−−−−−−
-----------40 parts Ageli Seal B-710-
−−−−−−−−−− ． 5 parts (nonionic surfactant: Kao Atlas brand name) Lunosox 1000 C--
----------0, 5 parts (anionic surfactant: Toho Chemical a...trade name) 1% rhodobol water -------
−−−−−−−−−−20 parts (thickener: Lone Boulin product name) Water −−−1・−−−−−・−−−−−−
-Mix 32 parts or more uniformly to make a flowable agent.

ｊＥＸ桝　茎葉兼土壌処理による除草効果試験縁１５ｃ
ｍ、横２２ｃｍ、深さ６　ｃｍのプラスチック製箱に殺
菌した洪積土壌を入れ、野外から採集したチガヤ、ヨモ
ギの地下茎１０ｃｍづつに切断したものを各々５本づつ
それぞれ植付け、約１．５ｃｍ　ＴＲ土した。植付は後
３０日回定有効成分量が所定の割合となるように茎葉部
および土壌表面へ均一に散布した。散布の際の薬液は、
前記配合例の懸濁剤を水で希釈して小型スプレーで各種
雑草の茎葉部及び土壌表面の全面に散布した。薬液散布
４週間後に地上部生存雑草重量を秤量し、無処理区の生
存雑草重量に対する残存雑草の割合を百分率で表し下記
の判定基準に従って枯殺効果を判定した。結果を第２表
および第３表に示す。jEX box Weeding effect test by stem leaf and soil treatment Edge 15c
Fill a plastic box measuring 22 cm wide and 6 cm deep with sterilized diluvial soil, and plant 5 rhizomes of Chigaya and Mugwort cut into 10 cm pieces each, collected from the field, to a height of approximately 1.5 cm TR. It was soil. After planting, the active ingredients were uniformly sprayed on the foliage and soil surface at a predetermined ratio for 30 days. The chemical solution used during spraying is
The suspending agent of the above formulation example was diluted with water and sprayed using a small sprayer over the foliage of various weeds and the entire surface of the soil. 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 living 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.

評点　殺草率 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％ ０ 第２表 １１ ２ 第　３　表（続き） 表中、計算値は前記Ｃｏ１ｂｙの式よりめた期待値を示
す。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% 0 Table 2 11 2 Table 3 (Continued) In the table, the calculated values indicate the expected values calculated from the Colby equation.

以上の表から明らかなように、本発明組成物は、一般式
（１）で表される化合物及び従来公知の除草剤それぞれ
の活性の単純な合計にとどまらず、より大きな相乗的除
草活性を有しており更にかつ低薬量で対象雑草を完全に
防除することができる。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 (1) and the conventionally known herbicides. Furthermore, target weeds can be completely controlled with a low dose.

特許出願人　日産化学工業株式会社 ３Patent applicant: Nissan Chemical Industries, Ltd. 3

Claims (1)

【特許請求の範囲】 一般式（■）： 八 〔式中Ａ、Ｂ、Ｒは低級アルキル基を示す。 Ｚは窒素原子もしくはＣ１１基を示す。ＸおよびＹはそ
れぞれ独立して、低級アルキル基または低級アルコキシ
基を示す。〕 で表されるピラゾールスルホニルウレア誘導体とアンモ
ニウム−エチル−カルバモイルホスホネートを有効成分
として含有することを特徴とする除草用組成物。[Claims] General formula (■): 8 [In the formula, A, B, and R represent a lower alkyl group. Z represents a nitrogen atom or a C11 group. X and Y each independently represent a lower alkyl group or a lower alkoxy group. ] A herbicidal composition comprising a pyrazolesulfonylurea derivative represented by the following and ammonium-ethyl-carbamoylphosphonate as active ingredients.