JPS5925309A - Agent for controlling plant blight caused by algal fungi - Google Patents

Agent for controlling plant blight caused by algal fungi

Info

Publication number
JPS5925309A
JPS5925309A JP13615382A JP13615382A JPS5925309A JP S5925309 A JPS5925309 A JP S5925309A JP 13615382 A JP13615382 A JP 13615382A JP 13615382 A JP13615382 A JP 13615382A JP S5925309 A JPS5925309 A JP S5925309A
Authority
JP
Japan
Prior art keywords
agent
fungi
algal fungi
blight
acid amide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13615382A
Other languages
Japanese (ja)
Inventor
Yukio Ishikuri
石栗 幸男
Hideo Kosaka
香坂 秀雄
Mitsuru Sasaki
満 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP13615382A priority Critical patent/JPS5925309A/en
Publication of JPS5925309A publication Critical patent/JPS5925309A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To provide the titled controlling agent effective not only to prevent the plant blight caused by algal fungi, such as downy mildew, late blight, etc., but also to remedy the blight, by using a thionophosphoric acid amide derivative as an active component. CONSTITUTION:The objective agent for controlling the plant blights caused by algal fungi contains the thionophosphoric acid amide derivative of formula (R1 and R2 are lower alkyl; X is methoxy, methyl, ethyl or halogen) (e.g. the compound wherein R1 and R2 are C2H5 and X is OCH3). The content of the thionophosphoric acid amide derivative of formula used as an active component in the composition is 0.1-99.9wt%, preferably 2.0-80.0wt%. The plant blight caused by algal fungi is e.g. downey mildew of algal fungi, radish, spinach, tobacco, cucumber, grape, Apiaceae plants, etc., and late blight of apple, strawberry, etc.

Description

【発明の詳細な説明】 本発明は、一般式 〔式中、kI およびに2は同一または相異なり低級ア
ルキル基を表わし、Xはメトキシ基、メチル基、エチル
基またはハロゲン原子を表わす。〕 で示されるチオノリン酸アミド誘導体を有効成分として
含有することを特徴とする藻菌類に起因する植物病害の
防除剤に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the general formula [where kI and 2 are the same or different and represent a lower alkyl group, and X represents a methoxy group, a methyl group, an ethyl group, or a halogen atom. ] The present invention relates to an agent for controlling plant diseases caused by algae and fungi, which is characterized by containing a thionolinic acid amide derivative represented by the following as an active ingredient.

一般式〔■〕で示されるチオノリン酸アミド誘導体は特
公昭47−1289号、特公昭48−18462号、特
公昭49−36228号、特公昭49−86712号、
特開昭50−77348号公報などに記載されている。
The thionolinic acid amide derivatives represented by the general formula [■] are listed in Japanese Patent Publications No. 47-1289, Japanese Patent Publications No. 18462-1982, Japanese Patent Publications No. 36228-1977, Japanese Patent Publications No. 86712-1987,
It is described in Japanese Patent Application Laid-Open No. 50-77348.

しかしなから、これらの化合物がべと病菌、疫病菌など
の藻菌類に起因する植物病害の防除剤として有用である
ことは何ら記載されていない。
However, there is nothing described that these compounds are useful as control agents for plant diseases caused by algal fungi such as downy mildew and Phytophthora.

さらに、一般に従来の藻菌類番こ起因する植物114害
の防除剤の多くは病+1.i菌か植物体内に侵入した後
(こ施用した場合、その防除効果が期待できないが、一
般式(I)で示されるチオノリン酸アミド誘導体はべと
病菌、疫病菌などの藻菌類に起因する植物病害に対して
予防効果ばかりでなく治療効果も有することを見出し、
本発明を完成するに至った。
Furthermore, in general, many of the conventional control agents for plant damage caused by algae and fungi contain diseases + 1. After the fungus invades the plant body (if applied, no control effect can be expected; however, the thionolinic acid amide derivative represented by the general formula (I) can be used against plants caused by algal fungi such as downy mildew and Phytophthora. It was discovered that it has not only a preventive effect but also a therapeutic effect against diseases.
The present invention has now been completed.

藻菌類に起因する植物病害には、藻菌類、ダイコン類の
へと病(Peronospora brassioae
)、ホウL/7草ノヘと病(Peronospora 
5pinaciae)、タバコのべと病(Perono
spora tabacina)、キュウリのべと病(
Pseudoperonospora cubensi
s)、ブドウのべと病(Plasmopara vit
icola) 、セリ科植物のべと病(PlaSmop
ara n1vea)、リンゴ、イチゴ、ヤクヨウニン
ジンの疫病 (Phytophthora cactorum)、ト
マト、キュウリの灰色疫病(Phytophthora
 capsici)、パイナ、プ/l/(7)疫病(P
hytophthora cinnamomi)、ジャ
ガイモ、トマト、ナスの疫病(Phytophtbor
ainfestansχタバコ、ソラマメ、ネギの疫病
(円1ytophthora n1cotianac 
var n1cotianae)、 キュウリ苗立枯f
4 (1’ytbium aphanidermat+
nn)、ホウレンソウ立枯病(Pythium sp、
)、 コムギ褐色雪腸病(Pylium sp、)タバ
コ苗立枯病(1’ythium debaryanum
)、ダイズのPythium Rot(Pythium
 aphaniderrnatu+n 1’、 dcb
aryanumPirregularel  P、my
riotylum%  P、  ultimum)など
がある。
Plant diseases caused by algal fungi include Peronospora brassioae and radish diseases.
), Peronospora L/7 Peronospora
5 pinaciae), tobacco downy mildew (Perono.
spora tabacina), downy mildew of cucumber (
Pseudoperonospora cubensi
s), downy mildew of grapes (Plasmopara vit
icola), downy mildew of Apiaceae plants (PlaSmop)
ara n1vea), late blight of apples, strawberries, and ginseng (Phytophthora cactorum), and gray late blight (Phytophthora cactorum) of tomatoes and cucumbers.
capsici), paina, pu/l/(7) plague (P
phytophthora cinnamomi), late blight of potatoes, tomatoes, and eggplants (Phytophthora cinnamomi)
ainfestans χ Late blight of tobacco, broad beans, and green onions (ytophthora n1 cotianac
var n1cotianae), cucumber seedling withering f
4 (1'ytbium aphanidermat+
nn), spinach damping-off (Pythium sp.
), wheat brown snow enteritis (Pylium sp,) tobacco seedling damping-off (1'ythium debaryanum)
), soybean Pythium Rot (Pythium
aphaniderrnatu+n 1', dcb
aryanumPirregularel P, my
riotylum% P, ultimum), etc.

本発明の藻菌類に起因する植物病害の防除剤の有効成分
である一般式〔■〕で示されるチオノリン酸アミド誘導
体は、1?I記の日本特許公報および公開特許公報に記
載の製造法で製造しうるが、そのいくつかを第1表に示
す。
1? They can be produced by the production methods described in the Japanese Patent Publications and Published Patent Applications No. I, some of which are shown in Table 1.

前記一般式CI)で示されるチオノリン酸アミド誘導体
を藻菌類に起因する植物病害の防除剤の有効成分として
用いる場合は、他の何らの成分も加えず、そのまま用い
てもよいし、あるいは固体担体、成体担体、界面活性剤
その他の製剤用補助剤と混合して粉剤、粒剤、水和剤、
乳剤、微粒剤、フロアブル、エアゾール等に製剤して用
いてもよい。
When the thionolinic acid amide derivative represented by the above general formula CI) is used as an active ingredient of a control agent for plant diseases caused by algae, it may be used as it is without adding any other ingredients, or it may be used as it is without adding any other ingredients, or it may be used as a solid carrier. , powders, granules, wettable powders, etc. by mixing with adult carriers, surfactants, and other formulation auxiliaries.
It may be used in formulations such as emulsions, fine granules, flowables, and aerosols.

各製剤中Iこは有効成分として前記一般式CI”Jで表
わされるチオノリン酸アミド誘導体を重憤比で0.1〜
999%、好ましくは2.0〜80.0%含有する。
Each preparation contains a thionolinamide derivative represented by the general formula CI''J as an active ingredient in a weight ratio of 0.1 to 1.
999%, preferably 2.0 to 80.0%.

固体担体には、植物性担体(たとえばタバコ、トウモロ
コシ、コムギ粉、タイズ粉、クルミ殻粉、木粉、繊維素
粉)、合成樹脂(たとえば塩化ビニル、ポリスチレン、
ポリエチレン、石/ll]樹脂)、鉱物質(たとえばア
タパルガスクレー、カオリンクレー、ベントナイト、酸
性白土、セリサイト、バーミキュライトなどの粘土用お
よび葉ロウ石、タルク、寒水石、珪藻土、沸石、軽石、
硼砂、活性炭、ホワイトカーボン、石膏)、肥料(たと
えば硫安、燐安、硝安、塙安、尿素またはこれらの化成
肥料)などがある。
Solid carriers include vegetable carriers (e.g., tobacco, corn, wheat flour, rice flour, walnut shell flour, wood flour, cellulose powder), synthetic resins (e.g., vinyl chloride, polystyrene,
minerals (for example, attapulgus clay, kaolin clay, bentonite, acid clay, sericite, vermiculite and other clays, phyllite, talc, anhydrite, diatomaceous earth, zeolite, pumice,
Borax, activated carbon, white carbon, gypsum), fertilizers (for example, ammonium sulfate, ammonium phosphorus, ammonium nitrate, Hanan, urea, or their chemical fertilizers).

成体担体に脂肪族および脂環式炭化水素(タトえば灯油
、マシン油、ミネラルスピリット、溶剤ナフサ)、芳香
族炭化水素(たとえばキシレン、メチルナフタレン、ノ
ニルフェノール)、アルコール(たとえばメチルアルコ
ール、エチルアルコール、エチレンクリコール、ポリエ
チレングリコール、ポリプロピレングリコール)、エー
テル(たとえばジオキサン、セロソルブ)、ケトン(た
とえばメチルエチルケトン、メチルイソブチルケトン、
シクロヘキサノン、イ′ノホロン)、ハロゲン化炭化水
素(たとえばジクロロエタン、トリクロロエタン、四塩
化炭素)、エステル、ニトリル、アミドおよびその他の
溶剤(たとえばジオクチルフタレート、トリクレジルホ
スフェート、アセトニトリル、ジメチルホルムアミド、
ジメチルスルホキシド、油脂類)および水などかある。
Solid carriers include aliphatic and cycloaliphatic hydrocarbons (e.g. kerosene, machine oil, mineral spirits, solvent naphtha), aromatic hydrocarbons (e.g. xylene, methylnaphthalene, nonylphenol), alcohols (e.g. methyl alcohol, ethyl alcohol, ethylene). glycol, polyethylene glycol, polypropylene glycol), ethers (e.g. dioxane, cellosolve), ketones (e.g. methyl ethyl ketone, methyl isobutyl ketone,
cyclohexanone, i'nophorone), halogenated hydrocarbons (e.g. dichloroethane, trichloroethane, carbon tetrachloride), esters, nitriles, amides and other solvents (e.g. dioctyl phthalate, tricresyl phosphate, acetonitrile, dimethylformamide,
dimethyl sulfoxide, oils and fats) and water.

製剤用補助剤、たとえば界面活性剤、湿展剤、固着剤、
分散剤、増粘剤、安定剤には、アルキルスルホン酸塩、
スルホコハク酸塩、アルキルアリールスルホン酸塩、エ
ステル硫酸塩、アルキル硫酸塩、エーテル硫酸塩、アル
キルアリールエーテル硫酸塩などの硫酸エステル塩、ア
ルキルアリールエーテルリン酸塩などのリン酸エステル
塩、ホルマリン縮合スノψホン酸塩、その他のカルボン
酸塩などのアニオン界面活性剤、アルキルおよびアルキ
や ルアリールポリオキシエチレンエーテルおポリオキシプ
ロピレンを親油基とするブロック、t? IJママ−ど
のエーテル、ソルビタンエステルのポリオキシエチレン
エーテル、ポリオキシエチレンフェニルフェノールポリ
マー、ソルビトールポリオキシエチレンエーテルのエス
テルなどのエーテルエステル、ポリオキシエチレン1脂
肪酸エステル、グリセリンエステル、ソルビタンエステ
ル、シサ糖エステルなどのエステル等の7ニオン界面活
性剤、カゼイン、ゼラチン、でんぷん、CMC(カルボ
キシメチルセルロース)、PVA(ポリビニルアルコー
ル)、アラビヤゴム、アルギン酸、糖蜜、寒天などの水
溶性高分子やリグニンスルホン酸カルシウム、リグニン
スルホン酸ナトリウム、ステアリン酸、オレイン酸、パ
ルミチン酸、松根浦、トール油、パイン浦、大σ油など
各種脂肪埃酸またはそのエステル類、IN dtパラフ
ィン、エポキシ化油、1’CP(IJン酸トリクレジル
)、PAP(酸性リン酸イ′ノプロピル)、ベントナイ
トなどがある。
Formulation auxiliaries, such as surfactants, wetting agents, fixing agents,
Dispersants, thickeners, and stabilizers include alkyl sulfonates,
Sulfuric acid ester salts such as sulfosuccinates, alkylaryl sulfonates, ester sulfates, alkyl sulfates, ether sulfates, alkylaryl ether sulfates, phosphate ester salts such as alkylaryl ether phosphates, formalin condensation sulfonates Anionic surfactants such as phonates and other carboxylates, alkyl and alkyl polyoxyethylene ethers, polyoxypropylene-based lipophilic blocks, t? IJ Mama - Which ethers, ether esters such as sorbitan ester polyoxyethylene ether, polyoxyethylene phenylphenol polymer, sorbitol polyoxyethylene ether ester, polyoxyethylene monofatty acid ester, glycerin ester, sorbitan ester, cisasugar ester, etc. 7-ion surfactants such as esters of esters, water-soluble polymers such as casein, gelatin, starch, CMC (carboxymethylcellulose), PVA (polyvinyl alcohol), gum arabic, alginic acid, molasses, agar, calcium lignosulfonate, ligninsulfonic acid Sodium, stearic acid, oleic acid, palmitic acid, various fatty acid acids or their esters such as Matsuneura, tall oil, Pineura, Oσ oil, IN dt paraffin, epoxidized oil, 1'CP (IJ tricresyl phosphate) , PAP (inopropyl acid phosphate), bentonite, etc.

これらの製剤は、そのままであるいは水で希釈して施用
する。もちろん、他の殺菌剤、殺ダニ剤、殺線虫剤、殺
虫剤、種子消毒剤、除草剤、肥料または土嬢改良剤等と
混合して、または混合せずに同時に施用することもでき
る。
These preparations are applied neat or diluted with water. Of course, it can also be applied simultaneously with or without mixing with other fungicides, acaricides, nematicides, insecticides, seed disinfectants, herbicides, fertilizers, soil conditioners, etc.

次に製剤例を示す。なお、化合物乞は第1表の化合物番
号によって示す。
Examples of formulations are shown below. In addition, compounds are indicated by compound numbers in Table 1.

製剤例1 粉  剤 化合Fn(t8)2tlflt!:部、カオリンクレー
88Ettm部およびタルク10重証部をよく粉砕混合
すれは2%の粉剤を得る。
Formulation Example 1 Powder Compound Fn(t8)2tlflt! : parts, 88 parts of kaolin clay, and 10 parts of talc are thoroughly ground and mixed to obtain a 2% powder.

製剤例2 水 和 剤 化合物(t)3重重口部、珪藻土45車量部、ホワイト
カーホン20重り部、湿展剤(ラウリル硫酸ソーダ)3
鉱酸部および分散剤(リグニンスルホン酸カルシウム)
2重を部をよく粉砕混合すれば30%の水相剤を得る。
Formulation Example 2 Wetting agent compound (t) 3 parts, diatomaceous earth 45 parts, white carbon 20 parts, wetting agent (sodium lauryl sulfate) 3 parts
Mineral acid part and dispersant (calcium lignin sulfonate)
By thoroughly grinding and mixing the two parts, a 30% aqueous phase agent can be obtained.

製剤例8 水 和 剤 化合物(5150重量部、珪藻土45重り部、7’t 
展剤(アルキルベンゼンスルホン酸カルシウム)25中
一部および分散剤(リグニンスルホン酸カルシウム)2
.5重1部をよく粉砕混合すれば50%の水相剤を得る
Formulation Example 8 Hydrating agent compound (5150 parts by weight, 45 parts by weight of diatomaceous earth, 7't
Part of spreading agent (calcium alkylbenzenesulfonate) 25 and dispersing agent (calcium ligninsulfonate) 2
.. By thoroughly grinding and mixing 1 part of 5 parts, a 50% aqueous phase agent can be obtained.

製剤例4 乳  剤 化合物(39)20市量部、キシレン60車一部および
乳化剤(ポリオキシエチレンフェニルフェノールポリマ
ー)20mM部を混和すれは、20%の乳剤を得る。
Formulation Example 4 Emulsion 20 parts by mass of compound (39), 60 parts of xylene and 20 mM parts of emulsifier (polyoxyethylene phenylphenol polymer) are mixed to obtain a 20% emulsion.

囚 本発明の藻菌類に起体する植物病害の防除剤の施用lは
、通常10ア゛−ル当り12〜200vであり、その施
用濃度は水相剤、乳剤等として水で希釈して施用する場
合、0.001〜0.2%である。また、粉?t’11
、粒剤等の場合は、通常何ら希釈せず、そのままで施用
する。これらの施用量、施用濃度は、製剤の種類によっ
て異なり、また施用の時期、施用の場所、施用の方法、
病害の種類、病害の程度、他の状況によっても異なり、
また作物の種類によっても異なり、さらに上記の範囲に
拘わることなく増減し、変更してもよい。
The application rate of the agent for controlling plant diseases caused by algae and fungi of the present invention is usually 12 to 200v per 10 acres, and the application concentration is diluted with water as an aqueous phase agent, emulsion, etc. If so, it is 0.001 to 0.2%. Also, powder? t'11
In the case of granules, etc., they are usually applied as is without any dilution. The amount and concentration of these applications vary depending on the type of formulation, and also depend on the time of application, place of application, method of application,
It varies depending on the type of disease, severity of disease, and other circumstances.
It also varies depending on the type of crop, and may be increased or decreased or changed without being limited to the above range.

次に藻菌類に起因する植物病害の防除効果を試験例によ
り示す。
Next, the effect of controlling plant diseases caused by algae and fungi will be shown using test examples.

なお、供試化合物のうち一般式CI)で示されるチオノ
リン酸アミド誘導体は第l表の化合物番号で比較対照の
ために用いた化合物は第2表の化合物記号で示す。
Among the test compounds, the thionolinamide derivatives represented by the general formula CI) are shown by the compound numbers in Table 1, and the compounds used for comparison are shown by the compound symbols in Table 2.

第    2    表 試験例1 キュウリへと病防除効果(予防効果試駆) プラスチック製ポット]こ砂壌土をつめキュウリ(品質
、相模半白)を播種した。これを温室で14日間栽培し
、子葉か展開したキュウリ幼苗に前記製剤例に準じて乳
剤または水和剤に調製した供試化合物の水希釈液を、葉
面に薬液か十分付肯するように茎葉散布した。集成散布
後5日間温室で栽培した幼苗にキュウリへと病菌(Ps
 eudope−ronospora cubensi
s)の分生胞子懸濁液を# * wc種した。これを2
0℃多湿条件下に3日間置き、つついて20℃蛍光灯照
明下で3日間栽培して発病させたのち、その発病状態を
観、察した。
Table 2 Test Example 1 Disease control effect on cucumbers (trial of preventive effect) Cucumbers (quality, Sagami Hanshiro) were sown in plastic pots filled with sandy loam soil. This was cultivated in a greenhouse for 14 days, and a water diluted solution of the test compound prepared as an emulsion or a wettable powder according to the above formulation example was applied to the cucumber seedlings whose cotyledons had developed, making sure that the medicinal solution was sufficiently applied to the leaf surface. Sprayed on foliage. Disease bacteria (Ps.
eudope-ronospora cubensi
The conidial suspension of S) was seeded with #*wc. This 2
The plants were placed under humid conditions at 0°C for 3 days, then plucked and cultivated for 3 days under fluorescent lighting at 20°C to induce disease, and the disease state was observed and observed.

発病度は下記の方法によって算出した。The disease severity was calculated by the following method.

すなわち、調査葉の病斑出現度に応じて、010.5.
112.4の指数に分類し、次式1こよって発病度を算
出した。
That is, depending on the degree of lesion appearance on the investigated leaves, 010.5.
The disease severity was calculated using the following formula 1.

(発病指数)   (発病状態) 0    葉面上(こ菌叢または病斑を認めない。(Incidence index) (Infection state) 0 On the leaf surface (no bacterial flora or lesions observed.

05   梱面上番こ葉面積の5%未満に@叢または病
斑を認みる。
05 Complexes or lesions are observed on less than 5% of the upper leaf area on the packing surface.

1    葉面上に葉面積の20%未満に菌叢または病
斑を認める。
1. Bacterial flora or lesions are observed on the leaf surface in less than 20% of the leaf area.

2    葉面上に葉面積の50%未満(こ菌叢または
病斑を認める。
2 Less than 50% of the leaf area (bacterial flora or lesions are observed on the leaf surface).

4    葉面上に葉面積の50%以上に閉設または病
斑を認める。
4. Closure or lesions are observed on the leaf surface over 50% of the leaf area.

つついて防除価を次式より求めた。The pest control value was calculated from the following formula.

結果を第3表にボす。The results are shown in Table 3.

第3表 試験例2 キュウリベと病防除効果(治療効果試験) プラスチック製ポットに砂壌土をつめ、キュウリ(品種
:相模半白)を播種した。
Table 3 Test Example 2 Cucumber and disease control effect (therapeutic effect test) A plastic pot was filled with sandy loam and cucumbers (variety: Sagami Hanshiro) were sown.

これを温室で14日間栽培し、子葉が展開したキュウリ
幼苗を得た。この幼苗キュウリニヘと病M (Pseu
doperonospora cubensis)の分
生胞子懸濁液を噴霧接種し、20℃多湿条件下に1白首
いた。その後この幼苗に!1 前記製剤例に準じて乳水または水和剤に調製した供試化
合物の水希釈液を葉面に薬液が七分に付着するように草
葉散布した。これを5日間20℃、蛍光灯照明下で栽培
して発病させたのち、その発病状態を観察した。発病度
および防除価の算出は試験例1と同様に行なった。結果
を第4表に示す。
This was cultivated in a greenhouse for 14 days to obtain cucumber seedlings with expanded cotyledons. This young cucumber seedling and Pseu
A conidial suspension of Doperonospora cubensis was inoculated by spraying, and one white head was grown under humid conditions at 20°C. Then to this young seedling! 1 A water-diluted solution of the test compound prepared as a milk solution or a hydrating powder according to the above formulation example was sprayed on grass leaves so that the drug solution was adhered to the leaves 70% of the way. The plants were cultivated for 5 days at 20° C. under fluorescent lamp illumination to develop the disease, and then the disease state was observed. The disease severity and control value were calculated in the same manner as in Test Example 1. The results are shown in Table 4.

@4表 試験例3 ブドウベと病防除効果(治療効果試験) プラスチック製ポットに砂壌土をつめ、ブドウ(品種:
デラウエア)を播種した。
@Table 4 Test Example 3 Grapevine disease control effect (therapeutic effect test) A plastic pot was filled with sandy loam soil and grapes (variety:
Delaware) was sown.

これを温室で約1ケ月間栽培し、木葉2〜3葉が展開し
たブドウ幼苗を得た。この幼苗にブドウベと病菌(Pl
asmopara viticola)の分生胞子顕濁
液を噴霧接種し、28℃で1日多湿条件下に置いた。そ
の後この幼苗に前記製剤例(こ準じて乳剤または水和剤
にa+g製した供試化合物の水希釈液を、葉面に薬液が
十分に付着するように茎葉散布した。
This was cultivated in a greenhouse for about one month to obtain grape seedlings with two to three leaves developed. Grape beetles and disease bacteria (Pl) are added to these young seedlings.
A conidial suspension of Asmopara viticola was spray-inoculated and kept at 28° C. for 1 day under humid conditions. Thereafter, a water-diluted solution of the test compound prepared in an emulsion or a wettable powder according to the above-mentioned formulation example (a+g) was sprayed onto the seedlings so that the chemical solution was sufficiently adhered to the leaf surface.

その後14日間23℃、蛍光灯照明下で栽培し、発病さ
せたのち、発病状態を観察した。発病度および防除価の
麗出は試験例1と同様に行なった。結果を第5表に示す
Thereafter, the plants were cultivated for 14 days at 23° C. under fluorescent lamp illumination to induce disease, and then the disease state was observed. The disease severity and control value were determined in the same manner as in Test Example 1. The results are shown in Table 5.

第5表 試験例4 ジャガイモ疫病防除効果(治療効果試験) ワグネルポットに砂壌土をつめジャガイモ塊茎(品種・
男爵)を播種した。これを温室で2’7−月間栽培した
。この苗にジャガイモ疫病菌(1)hytophtho
ra 1nfestans)  (7)遊走子懸濁液を
噴霧接種し、20℃で20時間多湿に保ったのち、前記
製剤例に準じて乳剤または水和剤に調製した供試化合物
の水希釈液を、葉面に葉液が十分に付着するように茎葉
散布した。その後20℃、温室で6日間栽培し、発病さ
せたのち発病状態を観察した。発病度および防除価の算
出は試験例1と同様(こ行なった。結果を第6表番こ示
す。
Table 5 Test Example 4 Potato Phytophthora control effect (therapeutic effect test) Potato tubers (variety/
Baron) was sown. This was grown in a greenhouse for 2'7 months. Potato Phytophthora (1) phytophtho is present on this seedling.
ra 1nfestans) (7) After spray inoculation with the zoospore suspension and keeping it humid at 20°C for 20 hours, a water dilution of the test compound prepared as an emulsion or wettable powder according to the above formulation example, The foliage was sprayed so that the leaf sap was sufficiently attached to the leaf surface. Thereafter, the plants were cultivated in a greenhouse at 20°C for 6 days to induce disease, and then the disease state was observed. The calculation of the disease severity and control value was carried out in the same manner as in Test Example 1. The results are shown in Table 6.

第6表Table 6

Claims (1)

【特許請求の範囲】 一般式 〔式中、R1およびに2は同一または相異なり低級アル
キル基を表わし、Xはメトキシ基、メチル基、エチル基
またはハロゲン原子を表わす。〕 で示されるチオノリン酸アミド誘導体を有効成分として
含有することを特徴とする藻菌類に起因する植物病害の
防除剤。
[Claims] General formula [wherein R1 and 2 are the same or different and represent a lower alkyl group, and X represents a methoxy group, a methyl group, an ethyl group or a halogen atom. ] A control agent for plant diseases caused by algae and fungi, characterized by containing a thionolinic acid amide derivative represented by the following as an active ingredient.
JP13615382A 1982-08-03 1982-08-03 Agent for controlling plant blight caused by algal fungi Pending JPS5925309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13615382A JPS5925309A (en) 1982-08-03 1982-08-03 Agent for controlling plant blight caused by algal fungi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13615382A JPS5925309A (en) 1982-08-03 1982-08-03 Agent for controlling plant blight caused by algal fungi

Publications (1)

Publication Number Publication Date
JPS5925309A true JPS5925309A (en) 1984-02-09

Family

ID=15168547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13615382A Pending JPS5925309A (en) 1982-08-03 1982-08-03 Agent for controlling plant blight caused by algal fungi

Country Status (1)

Country Link
JP (1) JPS5925309A (en)

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