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JP2008056602A - Grass disease-controlling composition - Google Patents

Grass disease-controlling composition Download PDF

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Publication number
JP2008056602A
JP2008056602A JP2006234781A JP2006234781A JP2008056602A JP 2008056602 A JP2008056602 A JP 2008056602A JP 2006234781 A JP2006234781 A JP 2006234781A JP 2006234781 A JP2006234781 A JP 2006234781A JP 2008056602 A JP2008056602 A JP 2008056602A
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disease
grass
parts
turf
azoxystrobin
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JP5034023B2 (en
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Tsunehiro Yoshida
恒洋 吉田
Yutaka Wada
豊 和田
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Nihon Green and Garden Corp
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Nihon Green and Garden Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a grass disease-controlling technology, etc., having a higher glass disease-controlling effect and without causing phytotoxic hazard to the grass. <P>SOLUTION: This grass disease-controlling composition is characterized by containing azocystrobin and tolclofosmethyl as an active ingredients by (5:2) to (1:25) weight ratio of the azocystrobin to tolclofosmethyl. The method for controlling the grass disease is characterized by applying the effective amounts of the simultaneously or jointly used combination of (a) the azocystrobin and (b) tolclofosmethyl to the grass or soil where grass disease microorganisms live, and also the use, etc., of the combination of (a) the azocystrobin and (b) tolclofosmethyl as the active ingredients of the grass disease-controlling composition are provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、芝病害防除組成物等に関する。   The present invention relates to a lawn disease control composition and the like.

公園又はゴルフ場等の芝生を健全な状態に育成管理し、有効に利用するために多くの技術が開発利用されてきた。特に、芝の栽培においては美しく見えることが重要視されており、芝が病害に犯され被害症状が発生した場合には、審美性が大きく損なわれるため、芝病害の発生を抑制するために各種の農薬が開発され利用されている。
中でもトルクロホスメチルは、ゴルフ場での雪腐れ病をはじめとして多くの芝病害に対して長く使用されている。(例えば、特許文献1、2及び3参照)
Many techniques have been developed and utilized to cultivate and manage lawns such as parks or golf courses in a healthy state and to use them effectively. Especially, it is important to look beautiful in turf cultivation. When turf is violated by a disease and a symptom of damage occurs, aesthetics are greatly impaired. Agricultural chemicals have been developed and used.
Among them, tolcrofos methyl has long been used for many turf diseases such as snow rot at golf courses. (For example, see Patent Documents 1, 2, and 3)

特公昭54−17804号公報Japanese Patent Publication No.54-17804 特開平5−213708号公報JP-A-5-213708 特開平6−345609号公報JP-A-6-345609

しかしながら、各々単独での施用では、如何なる条件においても、常に十分な芝病害防除効果が維持されるとは言いがたい状況があった。
本発明では、より芝病害防除効果が高く、芝に対し薬害の問題を生じることがない芝病害防除技術等を提供することを課題とする。
However, it has been difficult to say that a sufficient lawn disease control effect is always maintained under any condition in each application.
An object of the present invention is to provide a turf disease control technique or the like that has a higher turf disease control effect and does not cause a problem of chemical damage to the turf.

本発明者らは、かかる状況の下、鋭意研究を行った結果、有効成分としてアゾキシストロビンとトルクロホスメチルとを組み合わせて用いることにより、芝病害防除効果が維持されるとともに投下薬剤量を減少させることが可能となることを見出し、本発明に至った。
即ち、本発明は、
1.有効成分として、アゾキシストロビンとトルクロホスメチルとを含有することを特徴とする芝病害防除組成物(以下、本発明組成物と記すこともある。);
2.アゾキシストロビンとトルクロホスメチルとを重量比で5:2〜1:25の割合で含有することからを含むことを特徴とする前項1記載の芝病害防除組成物;
3.アゾキシストロビンとトルクロホスメチルとを重量比で2:5〜1:20の割合で含有することからを含むことを特徴とする前項1記載の芝病害防除組成物;
4.前項1、2又は3記載の芝生病害防除組成物、或いは、同時に若しくは併用して(a)アゾキシストロビンと(b)トルクロホスメチルとの組み合わせ、の有効量を芝又は芝生病害微生物が生息する土壌に施用することを特徴とする芝病害防除方法(以下、本発明方法と記すこともある。);
5.芝病害防除組成物の有効成分としての、アゾキシストロビンと(b)トルクロホスメチルとの組み合わせの使用(以下、本発明使用と記すこともある。);
等を提供するものである。
As a result of intensive studies under these circumstances, the present inventors have used a combination of azoxystrobin and torquelofosmethyl as active ingredients to maintain the lawn disease control effect and reduce the amount of drug to be dropped. As a result, the present invention has been found.
That is, the present invention
1. A lawn disease control composition comprising azoxystrobin and tolcrofosmethyl as active ingredients (hereinafter sometimes referred to as the present composition);
2. The composition for controlling turf disease according to item 1 above, comprising azoxystrobin and tolcrofosmethyl in a weight ratio of 5: 2 to 1:25;
3. The composition for controlling turf disease according to item 1 above, comprising azoxystrobin and tolcrofosmethyl in a weight ratio of 2: 5 to 1:20;
4). Lawn disease control microorganisms according to the preceding paragraph 1, 2, or 3, or lawn or lawn disease microorganisms inhabit an effective amount of (a) azoxystrobin and (b) tolcrofosmethyl combination simultaneously or in combination. Lawn disease control method characterized by being applied to soil (hereinafter sometimes referred to as the method of the present invention);
5. Use of a combination of azoxystrobin and (b) torquelofosmethyl as an active ingredient of a turf disease control composition (hereinafter sometimes referred to as use of the present invention);
Etc. are provided.

本発明により、十分な芝病害防除効果が維持されるとともに投下薬剤量を減少させることが可能となる。   According to the present invention, it is possible to maintain a sufficient lawn disease control effect and reduce the amount of drug dropped.

以下、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail.

本発明組成物は、広範囲の芝病害に対し防除効果を有し、芝に対し問題となるような薬害を生じない。
本発明組成物において使用できる「アゾキシストロビン」(IUPAC:メチル=(E)−2−{2−[6−(2−シアノフェノキシ)ピリミジン−4−イルオキシ]フェニル}−3−メトキシアクリラート)(即ち、化合物A)は、ファ−ム ケミカルズ ハンドブック(マイスタープロ インフォメーション リソーシズ発行)〔Farm Chemical Handbook(Meister Pro Imformation Resources発行)〕2002年度版第c50頁、ザ ペスティサイド マニュアル サーティンス エディション(ブリティッシュ クロップ プロテクション カウンシル発行)〔The Pesticide Manual Thirteenth Edition(British Crop Protection Council発行)〕2003年第52頁に記載の化合物である。
一方、他の一つの有効成分である「トルクロホスメチル」(即ち、化合物B)は、ファ−ム ケミカルズ ハンドブック(マイスタープロ インフォメーション リソーシズ発行)〔Farm Chemical Handbook(Meister Pro Imformation Resources発行)〕2002年度版第c396頁、ザ ペスティサイド マニュアル サーティンス エディション(ブリティッシュ クロップ プロテクション カウンシル発行)〔The Pesticide Manual Thirteenth Edition(British Crop Protection Council発行)〕2003年第979頁に記載の化合物である。
The composition of the present invention has a control effect on a wide range of turf diseases, and does not cause phytotoxicity that causes problems on the turf.
“Azoxystrobin” (IUPAC: methyl = (E) -2- {2- [6- (2-cyanophenoxy) pyrimidin-4-yloxy] phenyl} -3-methoxyacrylate which can be used in the composition of the present invention ) (Ie, Compound A), Farm Chemicals Handbook (published by Meister Pro Information Resources) [Farm Chemical Handbook (published by Meister Pro Information Resources)] 2002, p. Issued by the Council) [The Pesticide Manual Thirtainent Edition (British Crop Protection C uncil issued)] which is a compound according to the 52 page 2003.
On the other hand, “torquelophosmethyl” (that is, compound B), which is another active ingredient, is the Farm Chemicals Handbook (issued by Meister Pro Information Resources) [Farm Chemical Handbook (issued by Meister Pro Information Resources)] 2002 edition The compound described in p. 396, The Pesticide Manual, Thirty Edition (published by The British Crop Protection Council) [The Pesticide Manual Thirteenth Edition (published by British Crop Protection Council)], p. 979.

本発明組成物は、例えば、芝又は芝病害微生物が生息する土壌に施用すればよいが、特に、芝の茎葉に対して散布処理することが好ましい。
本発明組成物の施用量は、アゾキシストロビンとトルクロホスメチルとの混合比、気象条件、製剤形態、施用時期、施用方法、施用場所、防除対象病害、対象作物等により異なるが、例えば、アゾキシストロビンとトルクロホスメチルとの混合割合は、重量比で約5:2〜1:25、好ましくは約2:1〜1:20、より好ましくは約2:5〜1:20、特に好ましくは約1:4〜1:20の割合で、通常10アール当たり有効成分としては約1g〜10kg、好ましくは約100g〜1kgである。水和剤及び顆粒水和剤等を水で希釈して施用する場合には、その施用濃度は約0.0001重量%〜1重量%、好ましくは約0.01重量%〜0.5重量%である。勿論、場合によっては、水等で希釈することなくそのまま施用することも可能である。
The composition of the present invention may be applied to, for example, the soil where turf or turf-causing microorganisms inhabit, but it is particularly preferable to spray the turf foliage.
The application amount of the composition of the present invention varies depending on the mixing ratio of azoxystrobin and tolcrofosmethyl, weather conditions, formulation form, application time, application method, application place, disease to be controlled, target crop, etc. The mixing ratio of xystrobin and torquelofosmethyl is about 5: 2 to 1:25, preferably about 2: 1 to 1:20, more preferably about 2: 5 to 1:20, particularly preferably, by weight. The ratio of about 1: 4 to 1:20 is usually about 1 g to 10 kg, preferably about 100 g to 1 kg as an active ingredient per 10 ares. When applying wettable powder, granulated wettable powder and the like diluted with water, the applied concentration is about 0.0001 wt% to 1 wt%, preferably about 0.01 wt% to 0.5 wt%. It is. Of course, in some cases, it can be applied as it is without being diluted with water or the like.

本発明における芝地に用いられる芝草としては、ノシバ、ビロードシバ、コウライシバ、ベントグラス、ブルーグラス、バミューダグラス、ライグラス、センチピードグラス、セントオーガスチングラス、バヒアグラス、ダリスグラス、フェスク等を挙げることができる。   Examples of the turfgrass used in the turf according to the present invention include wild buckwheat, velvety buckwheat, yellow mulberry, bentgrass, bluegrass, bermudagrass, ryegrass, centipedegrass, st.

対象となる芝病害としては、例えば、葉枯病(Curvularia geniculata, Helminthosporium-hagare-byo)、ダラースポット病(Sclerotinia homoeocarpa)、擬似葉腐病(Ceratobasidium spp.)、葉腐病(Rhizoctonia solani)、雪腐小粒菌核病(Typhula incarnata, Typhula ishikariensis)、炭そ病(Colletotrichum graminicola)、紅色雪腐病(Monographella nivalis)等、褐色雪腐れ病(Pythium spp.)を挙げることができる。   Examples of turf diseases that are targeted include leaf blight (Curvularia geniculata, Helminthosporium-hagare-byo), dollar spot disease (Sclerotinia homoeocarpa), pseudoleaf rot (Ceratobasidium spp.), Leaf rot (Rhizoctonia solani), Examples include snow rot (Typhula incarnata, Typhula ishikariensis), anthrax (Colletotrichum graminicola), red snow rot (Monographella nivalis), and brown snow rot (Pythium spp.).

製剤化された本発明組成物は、そのままで又は水等で希釈して、植物体又は土壌に施用される。施用場所としては、例えば、公園、ゴルフ場、運動場、道路、家庭の庭等の芝生が挙げられる。更に、他の殺菌剤、殺虫剤、除草剤、肥料、土壌改良剤等と併用してもよい。このような殺菌剤としては、例えば、ベノミル、チオファネートメチル、イミノクタジンアルベシル酸塩、イミノクタジン酢酸塩、水和硫黄、ミクロブタニル、チフルザミド、ピリブチルカルブ、キャプタン、有機銅、ホセチル、イソプロチオラン、フルトラニル、メプロニル、トリフミゾール、チラウム、ヒドロキシイソキサゾール、ポリカーバメイト、メタラキシル、オキシカルボキシン、トリホリン、エクロメゾール、プロシミドン、ペンシクロン、シプロコナゾール、クロロネブ、TPN、テブコナゾール、イプロジオン、バリダマイシン、プロピコナゾール、フェリムゾン、ベテルタノール、トリアジメホン、シメコナゾール、プロパモカルブ塩酸塩、ポリオキシン、テトラコナゾール、イミベンコナゾール、メトコナゾール、フェナリモル、マンゼブ等が挙げられ、殺虫剤としては、例えば、モノクロトホス、アセタミプリド、ダイアジノン、ペルメトリン、ピリダフェンチオン、アセフェート、CVMP、テブフェノジド、イソキサチオン、PHC、シハロトリン、エトフェンプロックス、MEP、CYAP、テフルベンズロン、シラフルオフェン、トラロメトリン、クロルピリホス、DDVP、イミダクロプリド、DEP、NAC、ビフェントリン、プロチオホス、チアメトキサム、CVP、クロチアニジン、フェノブカルブ、MIPC、メソミル、チオジカルブ、ベンスルタップ等が挙げられる。また、除草剤としては、例えば、シンメチリン、トリアジフラム、イマゾスルフロン、プロジアミン、ビフェノックス、ペンディメタリン、ピリブチカルブ、イマゼキンアンモニウム、プロピザミド、DBN、ナプロパミド、DCBN、ハロスルフロンメチル、シアナジン、テニルクロール、カフェンストロール、トリアジフラム、SAP、CAT、メチルダイムロン、イソキサベン、クロルフタリム、ブタミホス、ジチオピル、シデュロン、アミプロホスメチル、インダノファン、ジチオピル、ベスロジン、アラクロール、オキサジクロメホン、オルソベンカーブ、シアナジン、レナシル、アシュラム、ピラゾスルフロンエチル、MCPP、エンドタール二ナトリウム塩、エトキシスルフロン、メトスルフロンメチル、トリクロピル、フラゾスルフロン、シノスルフロン、シクロスルファンムロン、イマザキン、2,4PA、MDBA、リムスルフロン、MCPイソプロピルアミン塩、フロラスラム、ピリデート等が挙げられる。   The formulated composition of the present invention is applied to a plant or soil as it is or diluted with water or the like. As an application place, lawns, such as a park, a golf course, a playground, a road, a home garden, are mentioned, for example. Furthermore, you may use together with another fungicide, an insecticide, a herbicide, a fertilizer, a soil improvement agent, etc. Such fungicides include, for example, benomyl, thiophanate methyl, iminotadine arbesylate, iminotazine acetate, hydrated sulfur, microbutanyl, tifluzamide, pyributylcarb, captan, organocopper, fosetyl, isoprothiolane, flutolanil, mepronil, trifumizole , Tiraum, Hydroxyisoxazole, Polycarbamate, Metalaxyl, Oxycarboxin, Triphorine, Echromezol, Procymidone, Pencyclon, Cyproconazole, Chloroneb, TPN, Tebuconazole, Iprodione, Validamycin, Propiconazole, Ferimzone, Betertanol, Triazimephone, Cimeconazole, propamocarb hydrochloride, polyoxin, tetraconazole, imibenconazole, metconazole, fume Examples include insecticides such as monocrotophos, acetamiprid, diazinon, permethrin, pyridafenthion, acephate, CVMP, tebufenozide, isoxathione, PHC, cyhalothrin, etofenprox, MEP, CYAP, teflufenslon, silafluotron Examples include tralomethrin, chlorpyrifos, DDVP, imidacloprid, DEP, NAC, bifenthrin, prothiophos, thiamethoxam, CVP, clothianidin, fenobucarb, MIPC, mesomil, thiodicarb, bensultap, and the like. As herbicides, for example, symmetrine, triadifram, imazosulfuron, prodiamine, biphenoxine, pendimethalin, pyributycarb, imazekin ammonium, propyzamide, DBN, napropamide, DCBN, halosulfuronmethyl, cyanazine, tenylchlor, caffanetrol, triadifram , SAP, CAT, methyl dimuron, isoxaben, chlorphthalim, butamifos, dithiopyr, ciduron, amiprophosmethyl, indanophan, dithiopyr, veslodin, alachlor, oxadichrome mehon, orthobencarb, cyananadine, lenacyl, ashram, pyrazosulfuron ethyl, MCPP , Endotal disodium salt, ethoxysulfuron, metsulfuron methyl, triclopyr, fura Surufuron, cinosulfuron, cycloalkyl sulfates Fanmu Ron, imazaquin, 2,4PA, MDBA, rimsulfuron, MCP isopropylamine salt, florasulam, pyridate, and the like.

本発明組成物の施用量は、有効成分である化合物Aと化合物Bとの混合割合、気象条件、製剤形態、施用時期、施用方法、施用場所、防除対象雑草、対象作物により変わり得るが、1ヘクタール当り有効成分の合計量は、通常、1gから5000g、好ましくは5gから2000gである。その所定量を1ヘクタール当り通常100〜1000リットルの水で希釈して施用する。また、本発明組成物を芝に茎葉処理する場合には、本発明組成物の希釈水にさらにアジュバントを加え、芝に対する効力の増強を期待することができる。
また、本発明においては上述の本発明組成物の使用量、使用形態等に準じて有効成分である化合物Aと化合物Bとを施用時に併用して芝に有効量処理することによっても優れた芝病害防除効果を発揮し得る。
The application amount of the composition of the present invention may vary depending on the mixing ratio of compound A and compound B, which are active ingredients, weather conditions, formulation form, application time, application method, application place, weeds to be controlled, and target crops. The total amount of active ingredients per hectare is usually 1 g to 5000 g, preferably 5 g to 2000 g. The predetermined amount is diluted with 100 to 1000 liters of water per hectare and applied. In addition, when the composition of the present invention is treated with foliage on the turf, an adjuvant can be further added to the diluted water of the composition of the present invention to increase the efficacy against the turf.
Further, in the present invention, an excellent lawn can be obtained by treating the lawn with an effective amount of Compound A and Compound B, which are active ingredients, according to the use amount, usage form, and the like of the present invention. Can exert disease control effect.

本発明組成物に含有される有効成分は、通常、固体担体、液体担体等と混合し、必要により界面活性剤、その他の製剤用補助剤等を添加して、乳剤、水和剤、懸濁剤、粒剤、顆粒水和剤、懸濁液剤、粉剤、液剤、エマルジョン剤、マイクロカプセル等に製剤化して用いられる。これらの製剤中には、化合物Aと化合物Bとの合計量が一般に、約0.01〜99.9重量%、好ましくは約0.05〜80重量%含有される。   The active ingredient contained in the composition of the present invention is usually mixed with a solid carrier, a liquid carrier, etc., and if necessary, a surfactant, other formulation adjuvants, etc. are added to the emulsion, wettable powder, suspension. It is formulated into a preparation, granule, wettable powder, suspension, powder, liquid, emulsion, microcapsule and the like. In these preparations, the total amount of Compound A and Compound B is generally about 0.01 to 99.9% by weight, preferably about 0.05 to 80% by weight.

製剤する際に用いられる固体担体としては、例えば、粘土類(カオリナイト、珪藻土、合成含水酸化珪素、クレー、ベントナイト、酸性白土等)、タルク、その他の無機鉱物(セリサイト、石英粉末、活性炭、炭酸カルシウム等)、化学肥料(硫安、燐安、硝安、塩安、尿素等)等の微粉末や粒状物等が挙げられる。
界面活性剤としては、例えば、公知の陰イオン界面活性剤、非イオン界面活性剤、陽イオン界面活性剤、両性界面活性剤等が挙げられる。具体的には例えば、アルキル硫酸エステル類、アルキルスルホン酸塩、アルキルアリ−ルスルホン酸塩、アルキルアリールエーテル類及びそのポリオキシエチレン化物、ポリエチレングリコールエーテル類、多価アルコールエステル類、糖アルコール誘導体等が挙げられる。
その他の製剤用補助剤としては、例えば、カゼイン、ゼラチン、多糖類(澱粉、アラビアガム、セルロース誘導体、アルギン酸等)、リグニン誘導体、合成水溶性高分子(ポリビニルアルコール、ポリビニルピロリドン、ポリアクリル酸等)等の固着剤や分散剤、PAP(酸性リン酸イソプロピル)、BHT(2,6−ジ−tert−ブチルー4−メチルフェノール)、BHA(2−/3−tert−ブチル−4−メトキシフェノール)、植物油、鉱物油、脂肪酸、脂肪酸エステル等の安定剤が挙げられる。
Examples of solid carriers used in the preparation include clays (kaolinite, diatomaceous earth, synthetic silicon hydroxide, clay, bentonite, acidic clay), talc, and other inorganic minerals (sericite, quartz powder, activated carbon, And fine powders and granules of chemical fertilizers (such as ammonium sulfate, phosphorous acid, ammonium nitrate, ammonium chloride, urea).
Examples of the surfactant include known anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants. Specifically, for example, alkyl sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl aryl ethers and polyoxyethylenated products thereof, polyethylene glycol ethers, polyhydric alcohol esters, sugar alcohol derivatives, etc. Can be mentioned.
Other formulation adjuvants include, for example, casein, gelatin, polysaccharides (starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, synthetic water-soluble polymers (polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, etc.) Fixing agents and dispersants such as PAP (isopropyl acid phosphate), BHT (2,6-di-tert-butyl-4-methylphenol), BHA (2- / 3-tert-butyl-4-methoxyphenol), Stabilizers such as vegetable oil, mineral oil, fatty acid, fatty acid ester and the like can be mentioned.

本発明組成物は、夫々の有効成分を前記の製剤手法により製剤した後、これらを混合することにより調製することもできる。
このようにして製剤化された本発明組成物は、そのまま散布してもよいし、水等で希釈して希釈液とした後に、土壌若しくは植物体に散布してもよい。
The composition of the present invention can be prepared by formulating each active ingredient by the above-described formulation technique and then mixing them.
The composition of the present invention thus formulated may be sprayed as it is, or after diluting with water or the like to form a diluted solution, it may be sprayed on soil or plants.

以下に製剤例及び試験例等の実施例を挙げ、本発明を更に具体的に説明するが、本発明はこれらに限定されるものではない。以下の説明において「部」は重量部を意味する。   Examples of formulation examples and test examples are given below to further illustrate the present invention, but the present invention is not limited to these examples. In the following description, “parts” means parts by weight.

製剤例1 アゾキシストロビン2.7部、トルクロホスメチル50部、合成含水酸化珪素42.3部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
製剤例2 アゾキシストロビン12.1部、トルクロホスメチル50部、合成含水酸化珪素32.9部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
製剤例3 アゾキシストロビン25部、トルクロホスメチル11.7部、合成含水酸化珪素58.3部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
製剤例4 アゾキシストロビン2部、トルクロホスメチル30部、合成含水酸化珪素63部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
製剤例5 アゾキシストロビン2部、トルクロホスメチル38.3部、合成含水酸化珪素54.7部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
製剤例6 アゾキシストロビン10部、トルクロホスメチル23.9部、合成含水酸化珪素61.1部、リグニンスルホン酸カルシウム3部及びラウリル硫酸ナトリウム2部をよく粉砕混合して水和剤を得る。
Formulation Example 1 2.7 parts of azoxystrobin, 50 parts of tolcrophos methyl, 42.3 parts of synthetic hydrous silicon oxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate are thoroughly pulverized and mixed to obtain a wettable powder.
Formulation Example 2 12.1 parts of azoxystrobin, 50 parts of tolcrofosmethyl, 32.9 parts of synthetic hydrous hydroxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate are thoroughly pulverized and mixed to obtain a wettable powder.
Formulation Example 3 A wettable powder is obtained by thoroughly grinding and mixing 25 parts of azoxystrobin, 11.7 parts of tolcrophos methyl, 58.3 parts of synthetic hydrous silicon oxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate.
Formulation Example 4 A wettable powder is obtained by thoroughly pulverizing and mixing 2 parts of azoxystrobin, 30 parts of tolcrofosmethyl, 63 parts of synthetic hydrous silicon oxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate.
Formulation Example 5 A wettable powder is obtained by thoroughly grinding and mixing 2 parts of azoxystrobin, 38.3 parts of tolcrofosmethyl, 54.7 parts of synthetic hydrous silicon oxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate.
Formulation Example 6 A wettable powder is obtained by thoroughly grinding and mixing 10 parts of azoxystrobin, 23.9 parts of tolcrofosmethyl, 61.1 parts of synthetic hydrous silicon oxide, 3 parts of calcium lignin sulfonate and 2 parts of sodium lauryl sulfate.

試験例1 (ポット試験:ベントグラスの葉腐病(ブラウンパッチ)に対する防除効果試験)
ベントグラス(ペンクロス)の種をプラスチックポットに播種し、温室内で約1ヶ月栽培し、当該芝の草丈を5mm程度にハサミを用いて刈り込した。その後、製剤例1〜2で調製された本発明組成物を、所定濃度になるように水で希釈した後、当該薬液を当該芝の茎葉に対して、液量が500ml/mになるように散布した。芝の茎葉に付着した薬液が風乾した後、V8フスマ培地で2週間培養されたRhizoctonia solaniの乾燥粉砕菌体をそのまま芝の茎葉表面に散粒接種した。その後、過湿条件下で14日間置くことにより、発病を促進させた。当該薬液の病害防除効果を調べるために、発病面積率を目視調査し、下記式に基づき防除価を求めた。
Test Example 1 (Pot Test: Bentgrass Leaf Blight (Brown Patch) Control Effect Test)
Bentgrass (pencloth) seeds were sown in a plastic pot, cultivated in a greenhouse for about 1 month, and the grass height of the grass was trimmed to about 5 mm using scissors. Then, after diluting the composition of the present invention prepared in Formulation Examples 1 and 2 with water to a predetermined concentration, the amount of the chemical solution is 500 ml / m 2 with respect to the grass foliage. Sprayed on. After the chemical adhering to the shoots and leaves of the turf was air-dried, dry crushed cells of Rhizoctonia solani cultured for 2 weeks in V8 bran medium were inoculated on the surface of the shoots and leaves as they were. Thereafter, the disease was promoted by placing it for 14 days under excessive humidity. In order to examine the disease control effect of the chemical solution, the disease area ratio was visually examined, and the control value was determined based on the following formula.

防除価(%)=100×(P−W)/P
P:無処理区発病面積率(%)
W:各薬剤処理区発病面積率(%)
E:コルビーの理論値=(X+Y)−(X×Y)/100
X:A剤の防除価
Y:B剤の防除価
Control value (%) = 100 × (P−W) / P
P: Untreated area disease area rate (%)
W: Disease area ratio (%)
E: Theoretical value of Colby = (X + Y) − (X × Y) / 100
X: Control value of agent A Y: Control value of agent B

Figure 2008056602
Figure 2008056602

その結果、驚くべきことに本発明防除剤は、相乗効果として当業者により予想される防除効果(即ち、コルビーの理論値)に対して15.3ポイント、29.1ポイントも優れた効果(即ち相乗効果)を示した。 As a result, surprisingly, the control agent of the present invention has 15.3 points and 29.1 points which are superior to the control effect expected by those skilled in the art as a synergistic effect (that is, the theoretical value of Colby) (ie, A synergistic effect).

試験例2(ポット試験:ベントグラスの紅色雪腐病に対する防除効果試験)
ベントグラス(ペンクロス)の種をプラスチックポットに播種し、温室内で約1ヶ月栽培し、当該芝の草丈を10mm程度にハサミを用いて刈り込した。その後、製剤例5〜6で調製された本発明組成物を、所定濃度になるように水で希釈した後、当該薬剤を当該芝の茎葉に対して、液量が500ml/mになるように散布した。芝の茎葉に付着した薬液が風乾した後、PDA培地で2週間培養されたMonographella nivalisの胞子懸濁液(105cfu/ml)を、そのまま芝の茎葉表面に1ポット当たり2ml噴霧接種した。その後、過湿条件下で14日間置くことにより、発病を促進させた。当該薬剤の病害防除効果を調べるために、発病を目視調査し、下記式に基づき防除価を求めた。
Test Example 2 (Pot test: Bentgrass control test against red snow rot)
Bentgrass (pencloth) seeds were sown in a plastic pot, cultivated in a greenhouse for about 1 month, and the grass height of the grass was cut to about 10 mm using scissors. Then, after diluting the composition of the present invention prepared in Formulation Examples 5 to 6 with water to a predetermined concentration, the amount of the drug is 500 ml / m 2 with respect to the grass foliage. Sprayed on. After the chemical solution adhering to the shoots and leaves of the turf was air-dried, the spore suspension of Monographella nivalis (10 5 cfu / ml) cultured in PDA medium for 2 weeks was spray-inoculated on the surface of the shoots and leaves as it was. Thereafter, the disease was promoted by placing it for 14 days under excessive humidity. In order to investigate the disease control effect of the drug, the disease was visually examined and the control value was determined based on the following formula.

調査基準 0:発病無し、1:発病面積率25%未満、2:発病面積率25%以上50%未満、4:発病面積率50%以上
発病度=(発病指数×該当ポット数)/4×調査ポット数
防除価(%)=100×(P−W)/P
P:無処理区発病度
W:各薬剤処理区発病度
E:コルビーの理論値=(X+Y)−(X×Y)/100
X:A剤の防除価
Y:B剤の防除価
Survey Criteria 0: No disease, 1: Disease area rate of less than 25%, 2: Disease area rate of 25% or more and less than 50%, 4: Disease area rate of 50% or more, Disease severity = (Pathogenesis index x number of pots) / 4x Survey pot number control value (%) = 100 × (P−W) / P
P: Untreated section disease severity W: Each drug treatment district disease severity E: Theoretical value of Colby = (X + Y) − (X × Y) / 100
X: Control value of agent A Y: Control value of agent B

Figure 2008056602
Figure 2008056602

その結果、驚くべきことに本発明防除剤は、相乗効果として当業者により予想される防除効果(即ち、コルビーの理論値)に対して29.2ポイント、18.7ポイントも優れた効果(即ち、相乗効果)を示した。
以上の2つの試験結果より、コルビーの理論値(E)と比較して顕著に高い防除価を示したことから、本発明組成物は優れた相乗作用を有することが示された。従って本発明により、単に混合した時に得られる相加効果以上の相乗効果を得ることができ、防除可能な病害の種類が多くなるとともに、その施用量を減少させることを可能とした。
As a result, surprisingly, the control agent of the present invention has an excellent effect of 29.2 points and 18.7 points on the control effect expected by those skilled in the art as a synergistic effect (ie, the theoretical value of Colby) (ie, A synergistic effect).
From the above two test results, since the control value was significantly higher than the theoretical value (E) of Colby, it was shown that the composition of the present invention has an excellent synergistic effect. Therefore, according to the present invention, it is possible to obtain a synergistic effect that is greater than the additive effect obtained by simply mixing, to increase the types of diseases that can be controlled, and to reduce the application rate.

本発明により、十分な芝病害防除効果が維持されるとともに投下薬剤量を減少させることが可能となる。   According to the present invention, it is possible to maintain a sufficient lawn disease control effect and reduce the amount of drug dropped.

Claims (5)

有効成分として、アゾキシストロビンとトルクロホスメチルとを含有することを特徴とする芝病害防除組成物。   A lawn disease control composition comprising azoxystrobin and tolcrofosmethyl as active ingredients. アゾキシストロビンとトルクロホスメチルとを重量比で5:2〜1:25の割合で含有することからを含むことを特徴とする請求項1記載の芝病害防除組成物。   2. The lawn disease control composition according to claim 1, comprising azoxystrobin and tolcrofosmethyl in a weight ratio of 5: 2 to 1:25. アゾキシストロビンとトルクロホスメチルとを重量比で2:5〜1:20の割合で含有することからを含むことを特徴とする請求項1記載の芝病害防除組成物   The composition for controlling turf disease according to claim 1, comprising azoxystrobin and tolcrofosmethyl in a weight ratio of 2: 5 to 1:20. 請求項1、2又は3記載の芝生病害防除組成物、或いは、同時に若しくは併用して(a)アゾキシストロビンと(b)トルクロホスメチルとの組み合わせ、の有効量を芝又は芝生病害微生物が生息する土壌に施用することを特徴とする芝病害防除方法。   The lawn disease control composition according to claim 1, 2 or 3, or the effective amount of (a) azoxystrobin and (b) tolcrofosmethyl in combination with or simultaneously with turf or lawn disease microorganisms A lawn disease control method characterized by being applied to soil. 芝病害防除組成物の有効成分としての、アゾキシストロビンと(b)トルクロホスメチルとの組み合わせの使用。   Use of a combination of azoxystrobin and (b) torquelofosmethyl as an active ingredient of a turf disease control composition.
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WO2010137675A1 (en) * 2009-05-25 2010-12-02 Sumitomo Chemical Company, Limited Composition and method for controlling plant diseases
KR20160111496A (en) * 2014-01-23 2016-09-26 유니버시티 오브 서섹스 Antifungal composition

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JP2005194223A (en) * 2004-01-06 2005-07-21 Sumitomo Chemical Co Ltd Disease injury-controlling agent for lawn

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JP2005097169A (en) * 2003-09-25 2005-04-14 Nihon Green & Garden Corp Lawn disease injury-controlling agent
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Publication number Priority date Publication date Assignee Title
WO2010137675A1 (en) * 2009-05-25 2010-12-02 Sumitomo Chemical Company, Limited Composition and method for controlling plant diseases
US8669205B2 (en) 2009-05-25 2014-03-11 Sumitomo Chemical Company, Limited Composition and method for controlling plant diseases
KR20160111496A (en) * 2014-01-23 2016-09-26 유니버시티 오브 서섹스 Antifungal composition
JP2017505307A (en) * 2014-01-23 2017-02-16 ザ ユニバーシティー オブ サセックス Antifungal composition
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