JP4960302B2 - 除草性5−ベンジルオキシメチル−1,2−イソオキサゾリン誘導体化合物の用途 - Google Patents
除草性5−ベンジルオキシメチル−1,2−イソオキサゾリン誘導体化合物の用途 Download PDFInfo
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- JP4960302B2 JP4960302B2 JP2008131188A JP2008131188A JP4960302B2 JP 4960302 B2 JP4960302 B2 JP 4960302B2 JP 2008131188 A JP2008131188 A JP 2008131188A JP 2008131188 A JP2008131188 A JP 2008131188A JP 4960302 B2 JP4960302 B2 JP 4960302B2
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
<実施例1:5−(2,6−ジフルオロベンジル)オキシメチル−5−メチル−3−(4−メチルチオフェン−5−イル)−1,2−イソオキサゾリン(以下、‘試験物質’)の畑条件での除草活性の測定>
本発明で使用された試験物質は、韓国特許第0392072号明細書の出願人である韓国化学研究院から提供されたものを使用した。
実施例1の結果から、本発明の試験物質は、メヒシバのようなイネ科雑草に対する高い防除効果を有するということが確認された。一方、メヒシバは、穀物において防除されねばならない重要な雑草であるが、芝(ゴルフ場、造景地)においても防除されねばならない重要な雑草である。したがって、本発明では、芝に対する安全性があれば、芝生用除草剤として使用することができるので、数種の暖地型芝及び寒地型芝を利用して試験物質の安全性を測定した。
芝で発生する代表的なイネ科雑草としては、メヒシバの外にスズメノカタビラがある。メヒシバは、主に春期に発生する夏季1年生雑草である。一方、スズメノカタビラは、秋期に発芽して越冬する越年生雑草であって、南部地方では、温度条件が合えば、冬及び春先にも発芽する問題性の雑草である。試験物質は、表1において、種蒔前処理に比べて発芽後処理は、その効果が低下したが、薬量を増加させれば、生育中の雑草も防除能力を有したので、本発明では、メヒシバ及びスズメノカタビラを対象として処理時期別の効果をさらに精密に検討した。
韓国特許第0392072号明細書に記載されている水田用除草剤としての用途とは、具体的には、稲において薬剤を水面に処理する条件を言い、韓国及び日本で典型的に使用されている方式である。同じ稲であっても、米洲、ヨーロッパ、東南アジアなどでは、稲を直播し、除草剤は、畑作物と同様にスプレーする方式が一般的であり、韓国及び日本の方式とは全く異なる方式である。
Claims (10)
- 請求項1に記載の一般式(I)の化合物または請求項2に記載の式(II)の化合物を有効成分として含み、固体担体、液体担体または界面活性剤を含むことを特徴とする芝生用除草剤。
- 固体担体は、カオリン、ベントナイト、モンモリロナイト、滑石、珪藻土、雲母、石こう、炭酸カルシウム、燐灰石またはシリコンヒドロキシドである無機粉末;豆粉、小麦粉、大鋸屑、タバコ粉、澱粉または結晶性セルロースである植物粉末;石油樹脂、塩化ビニル樹脂またはケトン樹脂である高分子物質;酸化アルミニウム;または密蝋であることを特徴とする請求項3に記載の芝生用除草剤。
- 液体担体は、メタノール、エチルアルコール、エチレングリコール、またはベンジルアルコールであるアルコール類;トルエン、ベンゼン、キシレン、またはメチルナフタレンである芳香族炭化水素;クロロホルム、四塩化炭素、またはコロロベンゼンであるハロゲン化炭化水素;ジオキサンまたはテトラヒドロフランであるエーテル類;アセトン、メチルエチルケトンまたはシクロヘキサノンであるケトン類;酢酸エチル、酢酸ブチルまたはエチレングリコールアセテートであるエステル類;ジメチルホルムアミドであるアミド類;アセトニトリルであるニトリル類;エチルグリコールまたはエチルエーテルであるエーテルアルコール類;または水であることを特徴とする請求項3に記載の芝生用除草剤。
- 界面活性剤は、ブロモセチルトリメチルアンモニウム塩である陽イオン性界面活性剤;アルキルアリールスルホン酸、アルキルオキシスルホン酸、アリールスルホン酸、アルカリ金属塩、アルカリ土金属塩、またはアンモニウム塩である陰イオン性界面活性剤;または脂肪族アルコール、キャスター・オイル、または、ナフタレンまたはナフタレンスルホン酸とフェノールまたはホルムアルデヒドの縮合物である非イオン性界面活性剤であることを特徴とする請求項3に記載の芝生用除草剤。
- 一般式(I)の化合物または式(II)の化合物を、単一有効成分として最終製品に対して1ないし80重量%を含むことを特徴とする請求項3に記載の芝生用除草剤。
- 一般式(I)の化合物または式(II)の化合物を、混合剤の一つの有効成分として最終製品に対して1ないし40重量%を含むことを特徴とする請求項3に記載の芝生用除草剤。
- 一般式(I)の5−ベンジルオキシメチル−1,2−イソオキサゾリン誘導体化合物を、高麗芝、暖地型芝、ベントグラス、ケンタッキーブルーグラス、ペレニアルライグラスのような西洋芝または寒地型芝で発芽前処理または発芽後処理によってメヒシバまたはスズメノカタビラを選択的に除草することを特徴とする請求項1に記載の芝生用除草剤。
- 請求項1に記載の一般式(I)の化合物または請求項2に記載の式(II)の化合物を、高麗芝、暖地型芝、ベントグラス、ケンタッキーブルーグラス、ペレニアルライグラスのような西羊芝または寒地型芝で発芽前処理または発芽後処理してメヒシバまたはスズメノカタビラを選択的に除草する方法。
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