JP4804706B2 - Agricultural / horticultural fungicide composition - Google Patents

Agricultural / horticultural fungicide composition Download PDF

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Publication number
JP4804706B2
JP4804706B2 JP2003142744A JP2003142744A JP4804706B2 JP 4804706 B2 JP4804706 B2 JP 4804706B2 JP 2003142744 A JP2003142744 A JP 2003142744A JP 2003142744 A JP2003142744 A JP 2003142744A JP 4804706 B2 JP4804706 B2 JP 4804706B2
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compound
agricultural
component
formula
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JP2004345981A (en
JP2004345981A5 (en
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真喜一 高垣
一郎 三浦
孝三 永山
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Kumiai Chemical Industry Co Ltd
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Kumiai Chemical Industry Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、優れた殺菌活性を有し、また殺虫又は殺ダニ活性も向上させた農園芸用殺菌剤組成物に関するものである。
【0002】
【従来の技術】
農作物の病害防除には多くの農園芸用殺菌剤が市販されているが、これらの防除効果は十分とはいえず、例えば一般式(I−1)
【化4】

Figure 0004804706
(式中、Xはハロゲン原子、C〜Cアルキル基、C〜Cアルコキシ基、C〜Cハロアルキル基又はC〜Cハロアルコキシ基、Yはハロゲン原子、C〜Cアルキル基又はC〜Cアルコキシ基、kは0、1/2又は1、m及びnは各々独立に0又は1〜4の整数、RはC〜Cアルキル基、Rは水素原子、C〜Cアルキル基又はC〜Cハロアルキル基、TはN又はCH、H−Aは酸性物質を示す)
で表わされるイミノオキシメチル芳香族化合物が提案されているが(特許文献1)、これにもそのような傾向が認められ、また、有効な病害の対象範囲も限られ、コムギうどんこ病、コムギふ枯病、イネいもち病、キュウリ灰色かび病等には適用しうるが、キュウリべと病などの他の病害に用いるのは困難であるのを免れないという問題がある。
【0003】
【特許文献1】
特開2001−106666号公報(特許請求の範囲等)
【0004】
【発明が解決しようとする課題】
本発明は、このように従来の農園芸用殺菌剤では、農作物の病害防除効果は十分ではなかったのを克服し、病害防除の効力が増強され、また殺虫又は殺ダニ効果も向上させた農園芸用殺菌剤組成物を提供することを課題とするものである。
【0005】
【課題を解決するための手段】
本発明者らは、この課題達成のために鋭意研究した結果、下記一般式(I)で表わされるイミノオキシメチル芳香族化合物の少なくとも1種以上と、特定の殺虫又は殺ダニ性化合物の少なくとも1種以上とを併用することにより、多くの植物病害に対して極めて高い防除効果が得られ、また殺虫又は殺ダニ効果も向上することを見出し、この知見に基づいて本発明を完成するに至った。
【0006】
すなわち、本発明は、
(1)(A)一般式(I)
【化5】
Figure 0004804706
(式中、Xは塩素原子又はメチル基、Yは塩素原子、メチル基又はメトキシ基、kは0又は1、m及びnは各々独立に0〜2の整数、Rはメチル基、Rはメチル基、TはN又はCH、H−AはCFCOOHを示す)
で表わされるイミノオキシメチル芳香族化合物の少なくとも1種以上と、(B)N‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミド又はtert‐ブチル=(E)‐α‐(1,3‐ジメチル‐5‐フェノキシピラゾール‐4‐イルメチレンアミノオキシ)‐p‐トルアートの殺虫又は殺ダニ性化合物とを含有することを特徴とする農園芸用殺菌剤組成物、
を提供するものである。
【0007】
【発明の実施の形態】
本発明の好ましい態様としては、以下のものが挙げられる。
(2)(B)成分の化合物が、N‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミドである前記(1)記載の農園芸用殺菌剤組成物。
(3)(A)成分のイミノオキシメチル芳香族化合物として、一般式(I)中のTがNであるイミノオキシメチルピリジン化合物を用いる前記(1)又は(2)記載の農園芸用殺菌剤組成物。
)イミノオキシメチルピリジン化合物が、式
【化6】
Figure 0004804706
で表わされるものである前記()記載の農園芸用殺菌剤組成物。
)(A)成分のイミノオキシメチル芳香族化合物が、式
【化7】
Figure 0004804706
で表わされるもので、(B)成分の化合物がN‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミドである前記(1)記載の農園芸用殺菌剤組成物。
)(A)成分と(B)成分との配合比が質量基準で100:1〜1:1000の範囲である前記(1)ないし()のいずれかに記載の農園芸用殺菌剤組成物。
【0008】
本発明の農園芸用殺菌剤組成物(以下、本発明組成物という)における(A)成分として用いられる、一般式(I)で表わされるイミノオキシメチル芳香族化合物において、XやYがハロゲン原子の場合には好ましくは塩素やフッ素、中でも塩素が挙げられる。また、XやYやR1やR2が上記アルキル基の場合には好ましくはメチル基やエチル基、中でもメチル基が挙げられ、XやR2が上記ハロアルキル基の場合には好ましくはハロメチル基やハロエチル基、中でもクロロメチル基やフルオロメチル基が挙げられ、XやYが上記アルコキシ基の場合には好ましくはメトキシ基やエトキシ基、中でもメトキシ基が挙げられ、Xがハロアルコキシ基の場合には好ましくはハロメトキシ基やハロエトキシ基、中でもクロロメトキシ基やフルオロメトキシ基が挙げられる。H−Aの酸性物質で形成させた塩の形態とした場合、この酸性物質としては、例えば酢酸、トリフルオロ酢酸、安息香酸等のカルボン酸や、トルエンスルホン酸、p‐ラウリルベンゼンスルホン酸等のようなアルキルベンゼンスルホン酸、メタンスルホン酸のようなアルカンスルホン酸等のスルホン酸などが挙げられる。
【0009】
この(A)成分のイミノオキシメチル芳香族化合物としては、一般式(I)中のTがNであるイミノオキシメチルピリジン化合物が好ましい。さらに、このイミノオキシメチルピリジン化合物としては、一般式(I)中のXがハロゲン原子、nが1、Yがハロゲン原子、C1〜C6アルキル基又はC1〜C6アルコキシ基、mが0又は1、R1がC1〜C6アルキル基、R2が水素原子又はC1〜C6アルキル基であり、k及びH−Aは前記(1)記載のものと同じであるものが好ましく、中でも一般式(I)中のXがCl、nが1、YがCl、C1〜C6アルキル基又はC1〜C6アルコキシ基、mが1、R1がC1〜C6アルキル基、R2がC1〜C6アルキル基であり、k及びH−Aは前記(1)記載のものと同じであるもの、特に式
【化8】
Figure 0004804706
で表わされるものが好ましい。
【0010】
本発明組成物において(A)成分として用いられるイミノオキシメチル芳香族化合物の例を表1に示す。これら例示化合物は、一般式
【化9】
Figure 0004804706
で表わされるものから選ばれたものである。なお、表1における化合物番号は以下の記載において参照される。
【0011】
【表1】
Figure 0004804706
【0012】
本発明組成物において(B)成分として用いられる殺虫又は殺ダニ性化合物としては、以下に示すものから選ばれ、これらは単独で用いてもよいし、また2種以上を組み合わせて用いてもよい。その物性値を表2に示す。
なお、これらの化合物を示す、化合物イ〜化合物へは以下の記載において参照される。
【0013】
N‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミド(化合物イ)
tert‐ブチル=(E)‐α‐(1,3‐ジメチル‐5‐フェノキシピラゾール‐4‐イルメチレンアミノオキシ)‐p‐トルアート(化合物ロ)
2‐tert‐ブチル‐5‐(4‐tert‐ブチルベンジルチオ)‐4‐クロロピリダジン‐3(2H)‐オン(化合物ハ)
5‐クロロ‐N‐{2‐[4‐(2‐エトキシエチル)‐2,3‐ジメチルフェノキシ]エチル}‐6‐エチルピリミジン‐4‐アミン(化合物ニ)
4‐tert‐ブチルフェネチルキナゾリン‐4‐イルエーテル(化合物ホ)
4‐クロロ‐3‐エチル‐1‐メチル‐N‐[4‐(p‐トリルオキシ)ベンジル]ピラゾール‐5‐カルボキサミド(化合物ヘ)
これらのうち、化合物イ、化合物ロ、化合物ハが好ましく、特に化合物イが好ましい。
【0014】
【表2】
Figure 0004804706
【0015】
これらの殺虫・殺ダニ性化合物の物性については、特に限定されないが、logPが通常3.5〜6.5、好ましくは4.5〜6.5、中でも4.5〜5.5のものであり、また、水溶解度(25℃)が通常0.01〜50ppm、好ましくは0.01〜10ppm、より好ましくは0.1〜10ppm、中でも1〜10ppmのものである。
【0016】
本発明組成物は、少なくとも(A)成分と(B)成分を含む有効成分を不活性な液体または固体の担体で希釈し、必要に応じて界面活性剤、分散剤又は補助剤等を配合して、例えば、粒剤、粉剤、水和剤、フロアブル、又は乳剤等に製剤化して施用することが好ましい。ここで好適な担体としては、例えば、タルク、ベントナイト、クレー、カオリン、珪藻土、炭酸カルシウム、ホワイトカーボン、バーミキュライト、消石灰、珪砂、硫安、尿素等の固体担体、イソプロピルアルコール、キシレン、シクロヘキサノン、メチルナフタレン、脂肪酸エステル、植物油、鉱物油、動物油、水等の液体担体が挙げられる。界面活性剤及び分散剤としては、例えば、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンヒマシ油、ポリオキシエチレンアルキルエーテル、ポリオキシンエチレンアルキルフェニルエーテル、ポリオキシエチレンアルキルエーテルサルフェート、アルキルベンゼンスルホネート、ナフタレンスルホネートホルマリン縮合物、リグニンスルホネート、ポリオキシエチレンアルキルフェニルエーテルスルホネート等が挙げられる。補助剤としては、例えば、カルボキシメチルセルロース、ポリビニルアルコール、ポリエチレングルコール、プロピレングリコール、アラビアゴム、デキストリン、縮合リン酸塩等が挙げられる。これらの製剤は、適宜な濃度に希釈して散布されるか、又は、直接施用される。
【0017】
さらに、本発明組成物は必要に応じて殺虫剤、他の殺菌剤、除草剤、植物生長調節剤、肥料等と混用してもよい。
【0018】
本発明組成物を施用する場合は、粉剤、粒剤、微粒剤、錠剤、液剤、乳剤、水和剤、フロアブル、エアゾル等の製剤として、例えば種子処理、茎葉散布、土壌施用、苗箱施用または水面施用等の通常の施用方法で供することができる。
【0019】
本発明組成物の施用量は、組み合わされる化合物の種類、対象病害、その発生傾向、被害の程度、環境条件、使用される剤型などによって変動させるのがよい。前記(A)成分と(B)成分との配合比は質量基準で通常100:1〜1:1000、好ましくは50:1〜1:50、より好ましくは20:1〜1:20の範囲である。
本発明組成物を実際の圃場で使用する場合には、その用量は、10アール当たり、有効成分の量、好ましくは(A)成分と(B)成分の合計量で0.1〜500g、好ましくは1〜50gの範囲となるようにするのがよい。液剤、乳剤、水和剤及びフロアブル等を水で希釈して使用する場合には、その希釈濃度は通常1〜5000ppm、好ましくは10〜1000ppmの範囲である。
【0020】
【実施例】
次に、実施例により本発明をさらに詳細に説明するが、本発明はこれらの例によりなんら限定されるものではない。
以下の説明において部は質量部を示す。
【0021】
先ず、本発明組成物の代表的な製剤例を示す。これらの例に限らず、製剤中の混合割合及び補助剤等は広い範囲で変更することができる。
製剤例1(水和剤)
化合物286を10部、化合物イを5部、ナフタレンスルホン酸ホルマリン縮合物ナトリウム塩を1.5部、ポリオキシエチレンアルキルアリールを1.5部、珪藻土を26部、クレーを56部それぞれ用い、これらを均一に混合粉砕して水和剤とした。
【0022】
製剤例2(粒剤)
化合物417を5部、化合物イを2部、ラウリルアルコール硫酸エステルのナトリウム塩を2部、リグニンスルホン酸ナトリウム塩を5部、カルボキシメチルセルロースを2部、クレーを84部それぞれ用い、これらを均一に混合粉砕した。この混合物100質量部に水20質量部を加えて練合し、押出式造粒機を用いて14〜32メッシュの粒状に加工したのち、乾燥して粒剤とした。
【0023】
製剤例3(フロアブル)
化合物285を10部、化合物ロを5部、リグニンスルホン酸ナトリウム塩を6部、ポリオキシエチレンアルキルナフタレンスルホン酸ナトリウム塩を1部、キサンタンガムを0.1部それぞれ用い、これらに水を77.9部加えて混合粉砕しフロアブル剤とした。
【0024】
次に、本発明組成物を施用した病害防除の試験例を示すが、これらの例に限定されるものではない。
個々の化合物の組み合わせにより期待される防除効果を、以下のコルビー(Colby)の計算式より求めた。
【0025】
【数1】
Figure 0004804706
式中、Xは化合物Aをm ppmの濃度で用いた場合の無処理対照の百分率で表される防除効果(防除価)、Yは化合物Bをn ppmの濃度で用いた場合の無処理対照の百分率で表される防除効果(防除価)、Eは化合物Aをm ppm、化合物Bをn ppmの濃度で混合して用いた場合の無処理対照の百分率で表される防除効果(防除価)をそれぞれ示す。
【0026】
本発明組成物の防除効果(防除価)がコルビーの計算式より求めた防除効果(防除価)の計算値(E)よりも大きい場合は、この組み合わせによる病害防除効果は相乗効果を示すことになる。
【0027】
試験例1 チャ輪斑病菌に対する菌糸生育阻害試験
製剤例1に準じて調製した各製剤を最終濃度の10倍濃度の有効成分濃度に殺菌水で希釈し、これを、滅菌後に55℃に冷ましたジャガイモ・ブドウ糖寒天培地(PDA培地)と1:9の割合で混合し、直径9cmの滅菌シャーレに15mlずつ分注した。寒天の固化後に、予めPDA培地にて27℃で5日間前培養しておいたチャ輪斑病菌(Pestalotiopsis longiseta)の菌叢先端を直径4mmのコルクボーラーで打ち抜き、その菌叢ディスクを寒天上に置床した。27℃で6日間培養し、菌叢の直径を測定し、置床した菌叢ディスクの直径4mmを引いた数値を菌叢の長さとし、数2の式により阻害率を算出した。試験によって得られた実験値の阻害率とコルビーの計算式により求めた計算値の阻害率を表3に示す。
【0028】
【数2】
Figure 0004804706
【0029】
【表3】
Figure 0004804706
【0030】
試験例2 トマト疫病予防効果試験
直径12cmの素焼き鉢にトマト苗(品種:ポンテローザ)を1本ずつ移植し、温室内で育成させ、複葉が6〜7枚に展開してから供試した。製剤例1に準じて調製した各製剤を所定濃度の有効成分になるように水で希釈し、これを1鉢当たり20ml噴霧散布した。風乾後、トマト疫病菌(Phytophthorainfestans)の遊走子のう懸濁液を噴霧接種し、直ちに18℃の湿室内に入れた。3日後に各葉の発病程度を下記の発病指数の基準に従って判定し、その指数値をもとに、数3の式により発病度を求め、さらに数4の式により防除価を求めた。試験によって得られた実験値の防除価とコルビーの計算式により求めた計算値の防除価を表4に示す。
【0031】
発病指数0:発病を認めず
発病指数1:葉面積の5%未満の発病面積
発病指数2:葉面積の5%以上、33.3%未満の発病面積
発病指数3:葉面積の33.3%以上、66.6%未満の発病面積
発病指数4:葉面積の66.6%以上の発病面積
【0032】
【数3】
Figure 0004804706
【0033】
【数4】
Figure 0004804706
【0034】
【表4】
Figure 0004804706
【0035】
試験例3 キュウリべと病予防効果試験
9cm×9cmのプラスチック鉢にキュウリ種子(品種:相模半白)を10粒ずつ播種し、温室内で7日間育成させ、子葉が展開したキュウリ幼苗を供試植物として用いた。製剤例1に準じて調製した各製剤を所定濃度の有効成分になるように水で希釈し、これを1鉢当たり15ml噴霧散布した。風乾後、キュウリべと病菌(Pseudoperonospora cubensis)の分生胞子懸濁液を噴霧接種し、直ちに20℃の接種室内に24時間入れた。その後温室内に移し、7日後に各子葉の発病程度を試験例2に示した発病指数の基準に従って判定し、その指数値をもとに試験例2と同様の方法で発病度及び防除価を求めた。試験によって得られた実験値の防除価とコルビーの計算式により求めた計算値の防除価を表5に示した。
【0036】
【表5】
Figure 0004804706
【0037】
これら表3〜5より、本発明組成物は、有効成分の個々の化合物でもある程度の防除効果を示すものの、それらを組み合わせたことにより、単なる個々の化合物の防除価の合計を遥かに凌駕する高い防除価を示し、明らかに相乗効果を奏することが分かる。
【0038】
【発明の効果】
本発明組成物は非常に優れた殺菌活性を有し、例えば卵菌類(Oomycetes)に属する菌、子のう菌類(Ascomycetes)に属する菌、担子菌類(Basdiomycetes)に属する菌、不完全菌類(Deuteromycetes)に属する菌等に起因する各種植物病害を防除することができ、また殺虫又は殺ダニ効果も向上させることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an agricultural and horticultural fungicide composition having excellent fungicidal activity and improved insecticidal or acaricidal activity.
[0002]
[Prior art]
Many agricultural and horticultural fungicides are commercially available for controlling diseases of agricultural crops, but their controlling effect is not sufficient. For example, the general formula (I-1)
[Formula 4]
Figure 0004804706
(In the formula, X is a halogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a C 1 -C 6 haloalkyl group or a C 1 -C 6 haloalkoxy group, Y is a halogen atom, C 1- A C 6 alkyl group or a C 1 -C 6 alkoxy group, k is 0, 1/2 or 1, m and n are each independently 0 or an integer of 1-4, R 1 is a C 1 -C 6 alkyl group, R 2 represents a hydrogen atom, a C 1 -C 6 alkyl group or a C 1 -C 6 haloalkyl group, T represents N or CH, and HA represents an acidic substance)
Has been proposed (Patent Document 1). However, such a tendency is also recognized, and the target range of effective diseases is limited. Wheat powdery mildew, wheat Although it can be applied to blight, rice blast, cucumber gray mold, etc., there is a problem that it cannot be used for other diseases such as cucumber downy mildew.
[0003]
[Patent Document 1]
JP 2001-106666 A (Claims etc.)
[0004]
[Problems to be solved by the invention]
Thus, the present invention overcomes the fact that the conventional agricultural and horticultural fungicides did not have sufficient disease control effects on agricultural crops, enhanced the effectiveness of disease control, and improved the insecticidal or acaricidal effect. An object of the present invention is to provide a horticultural fungicide composition.
[0005]
[Means for Solving the Problems]
The present inventors have conducted intensive studies and as a result for this assignment achievement, at least one of the at least one or more and the specific insecticidal or acaricidal compounds of imino oxymethyl aromatic compound represented by the following general formula (I) By using in combination with more than species, it was found that an extremely high control effect was obtained against many plant diseases, and that insecticidal or acaricidal effects were also improved, and the present invention was completed based on this finding. .
[0006]
That is, the present invention
(1) (A) General formula (I)
[Chemical formula 5]
Figure 0004804706
Wherein X is a chlorine atom or a methyl group, Y is a chlorine atom, a methyl group or a methoxy group, k is 0 or 1, m and n are each independently an integer of 0 to 2, R 1 is a methyl group, R 2 Is a methyl group, T is N or CH, and HA is CF 3 COOH)
At least one iminooxymethyl aromatic compound represented by the formula: and (B) N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide or tert-butyl. = (E) -α- (1,3-dimethyl-5-phenoxypyrazol-4-ylmethyleneaminooxy) -p-toluate insecticidal or acaricidal compound, characterized in that it contains agricultural and horticultural sterilization Agent composition,
Is to provide.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The following are mentioned as a preferable aspect of this invention.
(2) The agricultural and horticultural sterilization according to the above (1), wherein the compound of component (B) is N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide Agent composition.
(3) The agricultural and horticultural fungicide according to (1) or (2) above, wherein an iminooxymethylpyridine compound in which T in formula (I) is N is used as the iminooxymethyl aromatic compound of component (A) Composition.
( 4 ) The iminooxymethylpyridine compound has the formula
Figure 0004804706
The agricultural and horticultural fungicide composition as described in ( 3 ) above, which is represented by:
( 5 ) The iminooxymethyl aromatic compound of component (A) is represented by the formula:
Figure 0004804706
Wherein the compound of the component (B) is N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide; Disinfectant composition.
( 6 ) The agricultural and horticultural fungicide according to any one of (1) to ( 5 ), wherein the blending ratio of the component (A) and the component (B) is in the range of 100: 1 to 1: 1000 on a mass basis. Composition.
[0008]
In the iminooxymethyl aromatic compound represented by the general formula (I) used as the component (A) in the agricultural and horticultural fungicide composition of the present invention (hereinafter referred to as the present composition), X and Y are halogen atoms. In this case, chlorine and fluorine are preferable, and chlorine is particularly preferable. Further, when X, Y, R 1 or R 2 is the above alkyl group, preferably a methyl group or an ethyl group, particularly a methyl group is mentioned, and when X or R 2 is the above haloalkyl group, preferably a halomethyl group. And haloethyl group, especially chloromethyl group and fluoromethyl group. When X and Y are the above alkoxy group, preferably methoxy group and ethoxy group, especially methoxy group, and when X is haloalkoxy group. Is preferably a halomethoxy group or a haloethoxy group, particularly a chloromethoxy group or a fluoromethoxy group. In the case of a salt formed with an acidic substance of HA, examples of the acidic substance include carboxylic acids such as acetic acid, trifluoroacetic acid and benzoic acid, toluenesulfonic acid, p-laurylbenzenesulfonic acid and the like. Examples thereof include sulfonic acids such as alkylbenzenesulfonic acid and alkanesulfonic acid such as methanesulfonic acid.
[0009]
The iminooxymethyl aromatic compound of component (A) is preferably an iminooxymethylpyridine compound in which T in the general formula (I) is N. Further, as the imino oxymethyl pyridine compounds, X is a halogen atom in the formula (I), n is 1, Y is a halogen atom, C 1 -C 6 alkyl or C 1 -C 6 alkoxy group, m is 0 or 1, R 1 is a C 1 -C 6 alkyl group, R 2 is a hydrogen atom or a C 1 -C 6 alkyl group, and k and HA are the same as those described in (1) above. Among them, in general formula (I), X is Cl, n is 1, Y is Cl, C 1 -C 6 alkyl group or C 1 -C 6 alkoxy group, m is 1, and R 1 is C 1 -C 6. An alkyl group, R 2 is a C 1 -C 6 alkyl group, and k and HA are the same as those described in (1) above, in particular
Figure 0004804706
Is preferred.
[0010]
Table 1 shows examples of iminooxymethyl aromatic compounds used as the component (A) in the composition of the present invention. These exemplary compounds have the general formula
Figure 0004804706
Is selected from those represented by In addition, the compound number in Table 1 is referred in the following description.
[0011]
[Table 1]
Figure 0004804706
[0012]
The insecticidal or acaricidal compound used as the component (B) in the composition of the present invention is selected from those shown below, and these may be used alone or in combination of two or more. . The physical property values are shown in Table 2.
In addition, it refers to the following description to the compound a-compound which shows these compounds.
[0013]
N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide (Compound A)
tert-Butyl = (E) -α- (1,3-Dimethyl-5-phenoxypyrazol-4-ylmethyleneaminooxy) -p-toluate (compound b)
2-tert-Butyl-5- (4-tert-butylbenzylthio) -4-chloropyridazin-3 (2H) -one (Compound C)
5-Chloro-N- {2- [4- (2-ethoxyethyl) -2,3-dimethylphenoxy] ethyl} -6-ethylpyrimidin-4-amine (Compound D)
4-tert-butylphenethylquinazolin-4-yl ether (compound e)
4-Chloro-3-ethyl-1-methyl-N- [4- (p-tolyloxy) benzyl] pyrazole-5-carboxamide (compound)
Of these, Compound A, Compound B, and Compound C are preferable, and Compound A is particularly preferable.
[0014]
[Table 2]
Figure 0004804706
[0015]
The physical properties of these insecticidal and acaricidal compounds are not particularly limited, but the log P is usually 3.5 to 6.5, preferably 4.5 to 6.5, and more preferably 4.5 to 5.5. In addition, the water solubility (25 ° C.) is usually 0.01 to 50 ppm, preferably 0.01 to 10 ppm, more preferably 0.1 to 10 ppm, especially 1 to 10 ppm.
[0016]
In the composition of the present invention, an active ingredient containing at least the component (A) and the component (B) is diluted with an inert liquid or solid carrier, and a surfactant, a dispersant or an auxiliary agent is blended as necessary. For example, it is preferable to formulate and apply to granules, powders, wettable powders, flowables, or emulsions. Suitable carriers here include, for example, solid carriers such as talc, bentonite, clay, kaolin, diatomaceous earth, calcium carbonate, white carbon, vermiculite, slaked lime, silica sand, ammonium sulfate, urea, isopropyl alcohol, xylene, cyclohexanone, methylnaphthalene, Examples include liquid carriers such as fatty acid esters, vegetable oils, mineral oils, animal oils, and water. Examples of the surfactant and dispersant include polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene castor oil, polyoxyethylene alkyl ether, polyoxyethylene ethylene alkyl phenyl ether, polyoxyethylene alkyl ether sulfate, and alkylbenzene. Sulfonate, naphthalene sulfonate formalin condensate, lignin sulfonate, polyoxyethylene alkylphenyl ether sulfonate and the like can be mentioned. Examples of the adjuvant include carboxymethyl cellulose, polyvinyl alcohol, polyethylene glycol, propylene glycol, gum arabic, dextrin, condensed phosphate and the like. These preparations are sprayed after being diluted to an appropriate concentration or applied directly.
[0017]
Furthermore, the composition of the present invention may be mixed with insecticides, other fungicides, herbicides, plant growth regulators, fertilizers and the like as necessary.
[0018]
When applying the composition of the present invention, preparations such as powders, granules, fine granules, tablets, solutions, emulsions, wettable powders, flowables, aerosols, etc., for example, seed treatment, foliage application, soil application, seedling box application or It can be provided by a normal application method such as water surface application.
[0019]
The application amount of the composition of the present invention is preferably varied depending on the type of compound to be combined, target disease, occurrence tendency, degree of damage, environmental conditions, dosage form used, and the like. The blending ratio of the component (A) and the component (B) is usually in the range of 100: 1 to 1: 1000, preferably 50: 1 to 1:50, more preferably 20: 1 to 1:20 on a mass basis. is there.
When the composition of the present invention is used in an actual field, the dose is 10 to 100 g of active ingredient, preferably 0.1 to 500 g, preferably (A) and (B). Is preferably in the range of 1 to 50 g. When liquids, emulsions, wettable powders, flowables and the like are used after being diluted with water, the dilution concentration is usually in the range of 1 to 5000 ppm, preferably 10 to 1000 ppm.
[0020]
【Example】
EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.
In the following description, “part” means “part by mass”.
[0021]
First, typical preparation examples of the composition of the present invention are shown. Not limited to these examples, the mixing ratio and adjuvants in the preparation can be varied within a wide range.
Formulation Example 1 (wettable powder)
10 parts of Compound 286, 5 parts of Compound I, 1.5 parts of Naphthalenesulfonic acid formalin condensate sodium salt, 1.5 parts of polyoxyethylene alkylaryl, 26 parts of diatomaceous earth, 56 parts of clay, Was mixed and ground uniformly to obtain a wettable powder.
[0022]
Formulation Example 2 (Granule)
Using 5 parts of Compound 417, 2 parts of Compound A, 2 parts of sodium salt of lauryl alcohol sulfate, 5 parts of sodium lignin sulfonate, 2 parts of carboxymethylcellulose, and 84 parts of clay, these were uniformly mixed. Crushed. 20 parts by mass of water was added to 100 parts by mass of the mixture, kneaded, processed into granules of 14 to 32 mesh using an extrusion granulator, and dried to form granules.
[0023]
Formulation Example 3 (Flowable)
10 parts of Compound 285, 5 parts of Compound B, 6 parts of lignin sulfonic acid sodium salt, 1 part of polyoxyethylene alkylnaphthalene sulfonic acid sodium salt and 0.1 part of xanthan gum were used, respectively, and 77.9 water. Part was added and mixed and pulverized to obtain a flowable agent.
[0024]
Next, although the test example of disease control which applied this invention composition is shown, it is not limited to these examples.
The control effect expected by the combination of the individual compounds was determined from the following Colby formula.
[0025]
[Expression 1]
Figure 0004804706
In the formula, X is a control effect (control value) expressed as a percentage of the untreated control when Compound A is used at a concentration of m ppm, and Y is an untreated control when Compound B is used at a concentration of n ppm. The control effect (control value) expressed as a percentage of the untreated control when compound A is mixed at a concentration of m ppm and compound B is used at a concentration of n ppm. ) Respectively.
[0026]
When the control effect (control value) of the composition of the present invention is greater than the calculated value (E) of the control effect (control value) obtained from Colby's formula, the disease control effect of this combination exhibits a synergistic effect. Become.
[0027]
Test Example 1 Mycelial growth inhibition test against tea ring spot fungus Each preparation prepared according to Preparation Example 1 was diluted with sterilized water to an active ingredient concentration 10 times the final concentration, and this was cooled to 55 ° C. after sterilization The mixture was mixed with a potato / glucose agar medium (PDA medium) at a ratio of 1: 9, and dispensed into a sterile petri dish having a diameter of 9 cm. After the agar has solidified, the tip of the flora of the tea leaf spot fungus (Pestarotropis longiseta) that has been pre-cultured in PDA medium at 27 ° C. for 5 days in advance is punched out with a cork borer having a diameter of 4 mm, and the flora disc is placed on the agar. Placed. After culturing at 27 ° C. for 6 days, the diameter of the flora was measured, and the value obtained by subtracting the diameter of 4 mm of the placed flora disk was taken as the length of the flora, and the inhibition rate was calculated by the formula (2). Table 3 shows the inhibition rate of the experimental value obtained by the test and the inhibition rate of the calculated value obtained by Colby's formula.
[0028]
[Expression 2]
Figure 0004804706
[0029]
[Table 3]
Figure 0004804706
[0030]
Test Example 2 Tomato Blight Prevention Effect Test Tomato seedlings (variety: Ponterosa) were transplanted one by one in an unglazed pot having a diameter of 12 cm, grown in a greenhouse, and developed after 6-7 leaves were developed. Each formulation prepared according to Formulation Example 1 was diluted with water so as to be an active ingredient with a predetermined concentration, and sprayed with 20 ml per bowl. After air drying, a zoospore suspension of Phytophthora infestans was spray-inoculated and immediately placed in a humid chamber at 18 ° C. Three days later, the degree of disease on each leaf was determined according to the following criteria of disease index, and based on the index value, the disease severity was determined by Equation (3), and the control value was determined by Equation (4). Table 4 shows the control value of the experimental value obtained by the test and the control value of the calculated value obtained by the calculation formula of Colby.
[0031]
Onset index 0: No disease onset Onset index 1: Onset area less than 5% of leaf area Onset index 2: Onset area of 5% or more of leaf area and less than 33.3% Onset index 3: Onset of leaf area 33.3 % Of disease, disease area of less than 66.6%, disease incidence index 4: disease area of 66.6% or more of leaf area [0032]
[Equation 3]
Figure 0004804706
[0033]
[Expression 4]
Figure 0004804706
[0034]
[Table 4]
Figure 0004804706
[0035]
Test Example 3 Cucumber downy mildew prevention effect test 10 seeds of cucumber seeds (variety: Sagamihanjiro) were sown in a 9 cm x 9 cm plastic pot, grown in a greenhouse for 7 days, and used as cucumber seedlings with cotyledons. Used as a plant. Each formulation prepared according to Formulation Example 1 was diluted with water so as to be an active ingredient with a predetermined concentration, and sprayed with 15 ml per bowl. After air drying, a conidial spore suspension of Pseudoperonospora cubensis was spray-inoculated and immediately placed in a 20 ° C. inoculation chamber for 24 hours. After that, it was transferred to the greenhouse, and after 7 days, the degree of disease of each cotyledon was determined according to the criteria of disease index shown in Test Example 2, and the disease severity and control value were determined in the same manner as in Test Example 2 based on the index value. Asked. Table 5 shows the control value of the experimental value obtained by the test and the control value of the calculated value obtained by Colby's formula.
[0036]
[Table 5]
Figure 0004804706
[0037]
From Tables 3 to 5, although the composition of the present invention shows a certain degree of control effect even with the individual compounds of the active ingredients, the combination of them makes it much higher than the total control value of the individual compounds. It shows a control value and clearly shows a synergistic effect.
[0038]
【The invention's effect】
The compositions of the invention have very good fungicidal activity, for example, bacteria belonging to Oomycetes (Oomycetes), bacteria belonging to ascomycetes fungi (Ascomycetes), bacteria belonging to Basidiomycetes (Bas i diomycetes), Deuteromycetes Various plant diseases caused by bacteria belonging to (Deuteromycetes) can be controlled, and insecticidal or acaricidal effects can also be improved.

Claims (6)

(A)一般式(I)
Figure 0004804706
(式中、Xは塩素原子又はメチル基、Yは塩素原子、メチル基又はメトキシ基、kは0又は1、m及びnは各々独立に0〜2の整数、Rはメチル基、Rはメチル基、TはN又はCH、H−AはCFCOOHを示す)
で表わされるイミノオキシメチル芳香族化合物の少なくとも1種以上と、(B)N‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミド又はtert‐ブチル=(E)‐α‐(1,3‐ジメチル‐5‐フェノキシピラゾール‐4‐イルメチレンアミノオキシ)‐p‐トルアートの殺虫又は殺ダニ性化合物とを含有することを特徴とする農園芸用殺菌剤組成物。
(A) General formula (I)
Figure 0004804706
Wherein X is a chlorine atom or a methyl group, Y is a chlorine atom, a methyl group or a methoxy group, k is 0 or 1, m and n are each independently an integer of 0 to 2, R 1 is a methyl group, R 2 Is a methyl group, T is N or CH, and HA is CF 3 COOH)
At least one iminooxymethyl aromatic compound represented by the formula: and (B) N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide or tert-butyl. = (E)-.alpha.-agricultural and horticultural a (1,3-dimethyl-5-phenoxy-4-yl-methylene aminooxy)-p-Torua bets characterized by containing the insecticidal or acaricidal compound Disinfectant composition.
(B)成分の化合物が、N‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミドである請求項1記載の農園芸用殺菌剤組成物。  The agricultural and horticultural fungicide composition according to claim 1, wherein the compound of component (B) is N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide. (A)成分のイミノオキシメチル芳香族化合物として、一般式(I)中のTがNであるイミノオキシメチルピリジン化合物を用いる請求項1又は2記載の農園芸用殺菌剤組成物。  The agricultural and horticultural fungicide composition according to claim 1 or 2, wherein an iminooxymethylpyridine compound in which T in formula (I) is N is used as the iminooxymethyl aromatic compound of component (A). イミノオキシメチルピリジン化合物が、式
Figure 0004804706
で表わされるものである請求項3記載の農園芸用殺菌剤組成物。
The iminooxymethylpyridine compound has the formula
Figure 0004804706
The fungicide composition for agricultural and horticultural use according to claim 3, which is represented by:
(A)成分のイミノオキシメチル芳香族化合物が、式
Figure 0004804706
で表わされるもので、(B)成分の化合物がN‐(4‐tert‐ブチルベンジル)‐4‐クロロ‐3‐エチル‐1‐メチルピラゾール‐5‐カルボキサミドである請求項1記載の農園芸用殺菌剤組成物。
The iminooxymethyl aromatic compound of component (A) has the formula
Figure 0004804706
The compound for component (B) is N- (4-tert-butylbenzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide. Disinfectant composition.
(A)成分と(B)成分との配合比が質量基準で100:1〜1:1000の範囲である請求項1ないし5のいずれかに記載の農園芸用殺菌剤組成物。  The agricultural and horticultural fungicide composition according to any one of claims 1 to 5, wherein the blending ratio of the component (A) to the component (B) is in the range of 100: 1 to 1: 1000 on a mass basis.
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