JPH0798725B2 - Agricultural seed disinfectant efficacy enhancement method - Google Patents
Agricultural seed disinfectant efficacy enhancement methodInfo
- Publication number
- JPH0798725B2 JPH0798725B2 JP25634088A JP25634088A JPH0798725B2 JP H0798725 B2 JPH0798725 B2 JP H0798725B2 JP 25634088 A JP25634088 A JP 25634088A JP 25634088 A JP25634088 A JP 25634088A JP H0798725 B2 JPH0798725 B2 JP H0798725B2
- Authority
- JP
- Japan
- Prior art keywords
- seed
- rice
- paddy
- benzimidazole
- disease
- 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.)
- Expired - Fee Related
Links
- 239000000645 desinfectant Substances 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 6
- 241000209094 Oryza Species 0.000 claims description 35
- 235000007164 Oryza sativa Nutrition 0.000 claims description 35
- 235000009566 rice Nutrition 0.000 claims description 35
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- -1 aliphatic monocarboxylic acid Chemical class 0.000 claims description 10
- 230000000249 desinfective effect Effects 0.000 claims description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 28
- 201000010099 disease Diseases 0.000 description 25
- 241000894006 Bacteria Species 0.000 description 17
- 239000004563 wettable powder Substances 0.000 description 14
- 150000007524 organic acids Chemical class 0.000 description 12
- 206010039509 Scab Diseases 0.000 description 10
- 239000000203 mixture Substances 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 230000000855 fungicidal effect Effects 0.000 description 5
- 239000000417 fungicide Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 239000005842 Thiophanate-methyl Substances 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- RIOXQFHNBCKOKP-UHFFFAOYSA-N benomyl Chemical compound C1=CC=C2N(C(=O)NCCCC)C(NC(=O)OC)=NC2=C1 RIOXQFHNBCKOKP-UHFFFAOYSA-N 0.000 description 4
- MITFXPHMIHQXPI-UHFFFAOYSA-N benzoxaprofen Natural products N=1C2=CC(C(C(O)=O)C)=CC=C2OC=1C1=CC=C(Cl)C=C1 MITFXPHMIHQXPI-UHFFFAOYSA-N 0.000 description 4
- BCVNCJWDDOITBB-UHFFFAOYSA-N s-(dimethylcarbamoylsulfanyl) n,n-dimethylcarbamothioate;methyl n-[1-(butylcarbamoyl)benzimidazol-2-yl]carbamate Chemical compound CN(C)C(=O)SSC(=O)N(C)C.C1=CC=C2N(C(=O)NCCCC)C(NC(=O)OC)=NC2=C1 BCVNCJWDDOITBB-UHFFFAOYSA-N 0.000 description 4
- WQLUOXFADPZIRD-UHFFFAOYSA-N s-(dimethylcarbamoylsulfanyl) n,n-dimethylcarbamothioate;methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate Chemical compound CN(C)C(=O)SSC(=O)N(C)C.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WQLUOXFADPZIRD-UHFFFAOYSA-N 0.000 description 4
- 239000004308 thiabendazole Substances 0.000 description 4
- 235000010296 thiabendazole Nutrition 0.000 description 4
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 4
- 229960004546 thiabendazole Drugs 0.000 description 4
- QGHREAKMXXNCOA-UHFFFAOYSA-N thiophanate-methyl Chemical group COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC QGHREAKMXXNCOA-UHFFFAOYSA-N 0.000 description 4
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 4
- 229960002447 thiram Drugs 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- LDVVMCZRFWMZSG-OLQVQODUSA-N (3ar,7as)-2-(trichloromethylsulfanyl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)Cl)C(=O)[C@H]21 LDVVMCZRFWMZSG-OLQVQODUSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- 239000005745 Captan Substances 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- 241000221785 Erysiphales Species 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229940117949 captan Drugs 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000000361 pesticidal effect Effects 0.000 description 2
- 239000003495 polar organic solvent Substances 0.000 description 2
- BHFLSZOGGDDWQM-UHFFFAOYSA-N 1h-benzimidazole;carbamic acid Chemical compound NC(O)=O.C1=CC=C2NC=NC2=C1 BHFLSZOGGDDWQM-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000001089 [(2R)-oxolan-2-yl]methanol Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 235000018927 edible plant Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- BSYVTEYKTMYBMK-UHFFFAOYSA-N tetrahydrofurfuryl alcohol Chemical compound OCC1CCCO1 BSYVTEYKTMYBMK-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【発明の詳細な説明】 ［技術の分野］ 本発明は、イネ病害に対する耐性菌特にイネ馬鹿病耐性
菌により効力低下の著しい水稲用ベンツイミダゾール系
種子消毒剤の効力増強法に関する。Description: TECHNICAL FIELD The present invention relates to a method for enhancing the efficacy of a benzimidazole seed disinfectant for paddy rice, which is significantly reduced in efficacy by a resistant bacterium against a rice disease, particularly a rice stilt resistant bacterium.
［従来の技術とその問題点］ 今日、水稲の育苗は、農業の機械化に伴ない苗代育苗か
ら箱育苗に移行し、種子消毒剤の重要性が高められてい
る。その理由は、播種した後の育苗室内の栽培条件が、
各種病原菌の環境条件と合致するからであり、特に種子
同志が接触する過密播種を行なうため、いったん病菌が
発生するとたちまち蔓延する恐れがある。その代表例と
してイネ馬鹿苗病は大きな問題である。[Conventional Technology and Its Problems] Today, the importance of seed disinfectants is increasing, since rice seedlings have been replaced with box-type seedlings from the seedling-generation seedlings due to the mechanization of agriculture. The reason is that the cultivation conditions in the nursery room after sowing are
This is because it matches the environmental conditions of various pathogens, and in particular, since overseeding is carried out in which seeds come into contact with each other, once the disease fungus occurs, there is a risk that it will spread quickly. Rice scabbard disease is a major problem as a typical example.
そのような情勢の中、種々検討がなされ、水稲用種子消
毒剤としてベンツイミダゾール系殺菌剤、ベノミル、チ
オファネートメチル、又はチアベンダゾールを含む混合
剤（以下これらをベンツイミダゾール系種子消毒剤と呼
ぶ）たとえば、ベノミル20％＋チウラム20％混合水和剤
（以下ベンレートＴ水和剤と呼ぶ）、チオファネートメ
チル50％＋チウラム30％混合水和剤（以下ホーマイ水和
剤と呼ぶ）、チアベンダゾール20％＋キャプタン20％混
合水和剤（以下ケス水和剤と呼ぶ）が開発され大きな成
果を得ていた。Under such circumstances, various investigations have been made, and as a seed disinfectant for paddy rice, a benzimidazole fungicide, benomyl, thiophanate methyl, or a mixture containing thiabendazole (hereinafter, these are referred to as benzimidazole seed disinfectants), for example, benomyl. 20% + Thiuram 20% mixed wettable powder (hereinafter referred to as Benlate T wettable powder), Thiophanate methyl 50% + Thiuram 30% mixed wettable powder (hereinafter referred to as Homai wettable powder), Thiabendazole 20% + Captan 20% mixed A wettable powder (hereinafter referred to as a “quess wettable powder”) has been developed with great results.
しかし、最近、ベンツイミダゾール系種子消毒剤のイネ
馬鹿苗病に対する効力不足が問題となった。その原因と
しては種子消毒法の不完全が指摘されたが、それだけで
は説明できるものではなかった。However, recently, insufficient efficacy of the benzimidazole seed disinfectant against rice scab disease has become a problem. It was pointed out that the seed disinfection method was incomplete as the cause, but it could not be explained by itself.
その後、種々研究がなされ、ベンツイミダゾール系種子
消毒剤に対するイネ馬鹿苗病耐性菌（以下、イネ馬鹿苗
病耐性菌と呼ぶ）の出現が大きな原因であると言う事実
が明らかにされた。それ以来イネ馬鹿苗病耐性菌の分布
は拡大し年々大きな問題になりつつある。After that, various studies were conducted, and the fact that the emergence of rice stilt disease resistant bacteria (hereinafter referred to as rice stilt disease resistant bacteria) to benzimidazole seed disinfectants was clarified. Since then, the distribution of strains resistant to rice scabbard disease has expanded and is becoming a major problem year by year.
植物用殺菌剤と殺菌用補助剤としての有機酸とを組合せ
た食用植物用殺菌剤組成物（特開昭52-47919号）が知ら
れている。こゝで該殺菌剤としてはベンツイミダゾール
カルバミン酸エステルが用いられているが、有機酸の具
体例としては、グリコール酸およびグルコン酸であり、
他の極性基を有さない有機酸を使用した実施例はない。
また、病害の具体例としては各種の腐敗病、うどん粉病
およびさび病などであり、後述の本発明に係るイネ馬鹿
苗病に係る記述はない。There is known an edible plant fungicide composition (Japanese Patent Application Laid-Open No. 52-47919) in which a fungicide for plants and an organic acid as a bactericidal auxiliary are combined. Here, benzimidazole carbamic acid ester is used as the bactericide, and specific examples of the organic acid are glycolic acid and gluconic acid,
There is no example using an organic acid having no other polar group.
Further, specific examples of the diseases include various rot diseases, powdery mildew diseases, rust diseases and the like, and there is no description relating to rice scabbard disease according to the present invention described later.
また、特開昭58-210001号は、イミダゾール基を含有す
る少くとも一つの殺カビ剤を包含する塩基性含窒有害生
物殺滅活性成分を有機酸及び極性有機溶媒と組合せた有
害生物殺滅液体組成物を開示している。こゝで有機酸の
具体的記述としては、アルキル化ベンゼンスルホン酸又
はヒドロキシル化カルボン酸が挙げられ（註．特許請求
の範囲第６項）、極性有機溶剤としては、グリコールエ
ーテル及びテトラヒドロフルフリルアルコールが挙げら
れている（註．特許請求の範囲第７項）。Further, JP-A-58-210001 discloses a pesticidal composition in which a basic nitrogen-containing pesticidal active ingredient including at least one fungicide containing an imidazole group is combined with an organic acid and a polar organic solvent. A liquid composition is disclosed. Specific examples of the organic acid include alkylated benzenesulfonic acid and hydroxylated carboxylic acid (Note: Claim 6), and polar organic solvents include glycol ether and tetrahydrofurfuryl alcohol. Are listed (Note. Claim 7).
また、病害の種類としては、各種のサビ病、ウドンコ病
があげられているが、イネ馬鹿苗病に係る記述はない。In addition, although various rust diseases and powdery mildews are mentioned as types of diseases, there is no description relating to rice scabbard disease.
本発明者等はこうした事情を改善するために、イネ馬鹿
苗病耐性菌に対するベンツイミダゾール系種子消毒剤の
効力増強法の研究をかさねた結果、意外にもベンツイミ
ダゾール系種子消毒剤、ベンレートＴ水和剤、ホーマイ
水和剤、ケス水和剤の希釈剤に以下に示す有機酸を添加
混合して種子消毒をすることにより、イネ馬鹿苗病耐性
菌に対して驚くべき効果を発揮することを知見し、本発
明を完成した。In order to improve such circumstances, the present inventors have conducted research on a method for enhancing the efficacy of benzimidazole seed disinfectants against rice scab seedling resistant bacteria, and as a result, surprisingly, benzimidazole seed disinfectant, Benlate T water. By adding and mixing the following organic acids to the diluents for Japanese syrup, Homai wettable powder, and Kes wettable powder, and disinfecting the seeds, it is possible to exert a surprising effect against rice scab disease resistant bacteria. After finding out, the present invention was completed.
［問題を解決するための手段］ すなわち、本発明は、下記（１）および（２）の構成を
有する。[Means for Solving the Problem] That is, the present invention has the following configurations (1) and (2).
（１） ベンツイミタゾール系種子消毒剤と炭素数１〜
６の脂肪族モルカルボン酸若しくは炭素数７〜10の芳香
族モノカルボン酸を併用することを特徴とするイネ種籾
の消毒方法。(1) Benzimitazol-based seed disinfectant and 1 to 1 carbon atoms
6. A method for disinfecting rice seed rice, which comprises using together an aliphatic molcarboxylic acid of 6 or an aromatic monocarboxylic acid of 7 to 10 carbon atoms.
（２） ベンツイミダゾール系消毒剤100重量部と炭素
数１〜６の脂肪族モノカルボン酸若しくは炭素数７〜10
の芳香族モノカルボン酸１〜1,000重量部を組合わせて
なる農業用種子消毒剤。(2) 100 parts by weight of benzimidazole-based disinfectant and aliphatic monocarboxylic acid having 1 to 6 carbon atoms or 7 to 10 carbon atoms
Agricultural seed disinfectant which is a combination of 1 to 1,000 parts by weight of the aromatic monocarboxylic acid.
本発明に使用するベンツイミタゾール系種子消毒剤と
は、前述のようにベンツイミタゾール系殺菌剤、ベノミ
ル、チオファネートメチル、又はチアベンダゾールを含
む混合剤をいう。その具体例としては、前述のベンレー
トＴ水和剤（ベノミル20重量％とチウラム20重量％、以
下％は重量％を意味する。残分60％は、鉱物質等の希釈
剤、界面活性剤等の調合剤を意味する。以下の水和剤に
おいて同じ）、ホーマイ水和剤（チオファネートメチル
50％とチウラム30％）、およびケス水和剤（チアベンダ
ゾール20％＋キャプタン20％）を挙げることができる。The benzimidazole seed disinfectant used in the present invention refers to a mixture containing a benzimidazole fungicide, benomyl, thiophanate methyl, or thiabendazole as described above. Specific examples thereof include the above-mentioned Benlate T wettable powder (benomyl 20% by weight and thiuram 20% by weight, and the following% means% by weight. The remaining 60% means a diluent such as a mineral substance, a surfactant, etc. The same applies to the following wettable powders), Homai wettable powder (thiophanate methyl)
50% and thiuram 30%), and keth wettable powder (thiabendazole 20% + captan 20%).
本発明に使用する特定の有機酸としては、炭素数１〜６
の脂肪族モノカルボン酸若しくは炭素数７〜10の芳香族
モノカルボン酸である。The specific organic acid used in the present invention has 1 to 6 carbon atoms.
Is an aliphatic monocarboxylic acid or an aromatic monocarboxylic acid having 7 to 10 carbon atoms.
有機酸の炭素数が上記範囲を超えた場合、または、炭素
数が上記範囲内であってもカルボキシル基を１分子中に
２以上有するポリカルボン酸または、カルボキシル基以
外に他の官能基例えば水酸基有するカルボン酸は、本発
明に係るベンツイミダゾール系種子消毒剤との組合せに
よる効力増加がほとんど殆どないか又は極めて薄弱であ
るので好ましくない。When the number of carbon atoms of the organic acid exceeds the above range, or even when the number of carbon atoms is within the above range, a polycarboxylic acid having two or more carboxyl groups in one molecule or a functional group other than the carboxyl group such as a hydroxyl group The carboxylic acid that it has is not preferable because it has little or very little increase in efficacy due to the combination with the benzimidazole seed disinfectant according to the present invention.
かゝる有機酸の具体例としては限定されないが、酢酸、
プロピオン酸、ｎ−酪酸、ソルビン酸又は、安息香酸を
あげることができる。これらの有機酸は、一般的に軽微
な殺菌作用認められるものの、イネ馬鹿苗病菌に対する
殺菌効果は、きわめて小さく実用に供試し難い。ところ
が、本発明者らの研究により、イネ馬鹿苗病耐性菌に対
し実用性に乏しいベンツイミダゾール系種子消毒剤、ベ
ンレートＴ水和剤、ホーマイ水和剤、ケス水和剤の希釈
剤にこれら有機酸のいずれか１種を添加混合して種子消
毒することにより、イネ馬鹿苗病耐性菌に対し卓越した
相剰的効果を発揮する。Specific examples of such organic acid include, but are not limited to, acetic acid,
Mention may be made of propionic acid, n-butyric acid, sorbic acid or benzoic acid. Although these organic acids are generally recognized as having a slight bactericidal action, their bactericidal effect against rice scab disease is extremely small and it is difficult to put them to practical use. However, as a result of the research conducted by the present inventors, benzimidazole seed disinfectant, Benlate T wettable powder, Homai wettable powder, and Kes wettable powder, which are poorly practical against rice scab seedling resistant bacteria, are used as diluents for these organic compounds. By adding and mixing any one of the acids and disinfecting the seeds, an excellent additive effect is exhibited against rice scab seed disease resistant bacteria.
本発明に使用するベンツイミダゾール系種子消毒剤と有
機酸の使用比率および混合比率は特に限定されないが、
製剤としての前者に対し、水で希釈前の後者を重量比で
0.01〜10倍使用する、云い換えると前者100重量部に対
し、後者を１〜1,000重量部、好ましくは50〜500重量部
使用する。後者、すなわち有機酸は、水で希釈前のベン
ツイミダゾール系種子消毒剤に直接混合してもよいが、
好ましくは水で100〜1,000倍に希釈した後、ベンツイミ
ダゾール系種子消毒剤と混合する。かくして得られた本
発明の種籾消毒剤を用いて、常法により種籾の消毒を行
う。本発明の顕著な効果は、後述の実施例にあきらかで
ある。The use ratio and mixing ratio of the benzimidazole seed disinfectant and the organic acid used in the present invention are not particularly limited,
The weight ratio of the latter before dilution with water to the former as a formulation
It is used 0.01 to 10 times, in other words, the latter is used in an amount of 1 to 1,000 parts by weight, preferably 50 to 500 parts by weight, based on 100 parts by weight of the former. The latter, i.e. the organic acid, may be mixed directly with the benzimidazole seed disinfectant before dilution with water,
It is preferably diluted 100 to 1,000 times with water and then mixed with a benzimidazole seed disinfectant. The seed paddy disinfectant of the present invention thus obtained is used to disinfect the seed paddy by a conventional method. The remarkable effect of the present invention is obvious in the examples described later.
以下、この効果を実施例に基ずいて具体的に説明する。Hereinafter, this effect will be specifically described based on Examples.
実施例１、比較例１ 種籾（品種＝コシヒカリ）にイネ馬鹿苗病耐性菌を接種
した。この籾を水道水で、以下に示す所定濃度に希釈し
た供試薬剤液中に24時間浸漬し、室温で17時間風乾し
た。その後種籾をPSA培地の表面にのせ、25℃恒温器に
セットして菌糸を発育せしめ、経日的に病菌発生籾数を
調査した。その病菌検出籾率を表−１に示した。Example 1 and Comparative Example 1 Seed paddy (variety: Koshihikari) was inoculated with rice scab seed disease resistant bacteria. The paddy was immersed in tap water for 24 hours in a reagent solution diluted to the following predetermined concentration, and air-dried at room temperature for 17 hours. After that, the seed paddy was placed on the surface of PSA medium and set in a thermostat at 25 ° C to grow mycelium, and the number of paddy rice seeds was investigated daily. Table 1 shows the rate of unhulled rice detected by the disease.
実施例２ 種籾（品種＝コシヒカリ）にイネ馬鹿苗病耐性菌を接種
した。この籾を水道水で、以下に示す所定濃度に希釈し
た供試薬剤液中に24時間浸漬し、室温で17時間風乾し
た。その後種籾をPSA培地の表面にのせ、25℃恒温器に
セットして菌糸を発育せしめ、経日的に病菌発生籾数を
調査した。その病菌検出籾率を表−２に示した。 Example 2 A seed paddy (variety = Koshihikari) was inoculated with a rice scab seed disease resistant bacterium. The paddy was immersed in tap water for 24 hours in a reagent solution diluted to the following predetermined concentration, and air-dried at room temperature for 17 hours. After that, the seed paddy was placed on the surface of PSA medium and set in a thermostat at 25 ° C to grow mycelium, and the number of paddy rice seeds was investigated daily. Table 2 shows the paddy rate for detecting the disease bacteria.
実施例３ 種籾（品種＝コシヒカリ）にイネ馬鹿苗病耐性菌を接種
した。この籾を水道水で、以下に示す所定濃度に希釈し
た供試薬剤液中に24時間浸漬し、室温で17時間風乾し
た。その後種籾をPSA培地の表面にのせ、25℃恒温器に
セットして菌糸を発育せしめ、経日的に病菌発生籾数を
調査した。その病菌検出籾率を表−３に示した。 Example 3 A seed paddy (variety: Koshihikari) was inoculated with a rice scab seed disease resistant bacterium. The paddy was immersed in tap water for 24 hours in a reagent solution diluted to the following predetermined concentration, and air-dried at room temperature for 17 hours. After that, the seed paddy was placed on the surface of PSA medium and set in a thermostat at 25 ° C to grow mycelium, and the number of paddy rice seeds was investigated daily. Table 3 shows the paddy rate of the disease-detecting bacteria.
実施例４ 種籾（品種＝コシヒカリ）にイネ馬鹿苗病耐性菌を接種
した。この籾を水道水で、以下に示す所定濃度に希釈し
た供試薬剤液中に24時間浸漬し、室温で17時間風乾し
た。その後種籾をPSA培地の表面にのせ、25℃恒温器に
セットして菌糸を発育せしめ、経日的に病菌発生籾数を
調査した。その病菌検出籾率を表−４に示した。 Example 4 A seed paddy (variety: Koshihikari) was inoculated with a rice scab seed disease resistant bacterium. The paddy was immersed in tap water for 24 hours in a reagent solution diluted to the following predetermined concentration, and air-dried at room temperature for 17 hours. After that, the seed paddy was placed on the surface of PSA medium and set in a thermostat at 25 ° C to grow mycelium, and the number of paddy rice seeds was investigated daily. Table 4 shows the paddy rate of the disease-detecting bacteria.
参考例 種籾（品種＝コシヒカリ）にイネ馬鹿苗病耐性菌または
感受性菌を接種した。この籾を水道水で、以下に示す濃
度に希釈した供試薬剤液中に所定時間浸漬し、室温で17
時間風乾した。その後種籾をPSA培地の表面にのせ、25
℃恒温室にセットして菌糸を発育せしめ、経日的に病菌
発生籾数を調査した。その病菌検出籾率を表−５に示し
た。 Reference Example Seed rice (cultivar = Koshihikari) was inoculated with rice scabanae disease resistant bacteria or susceptible bacteria. Soak this paddy in tap water for a specified time in the reagent solution diluted to the concentration shown below, and leave at room temperature for 17 hours.
Air dried for hours. After that, seed rice is placed on the surface of PSA medium and
The mycelia were allowed to grow in a thermostatic chamber at ℃ and the number of paddy rice germs was investigated daily. Table 5 shows the rate of paddy rice detected for disease.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−5528（ＪＰ，Ａ) ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-50-5528 (JP, A)
Claims (2)
１〜６の脂肪族モノカルボン酸若しくは炭素数７〜10の
芳香族モノカルボン酸を併用することを特徴とするイネ
種籾の消毒方法。1. A method for disinfecting rice seed rice, which comprises using a benzimidazole seed disinfectant and an aliphatic monocarboxylic acid having 1 to 6 carbon atoms or an aromatic monocarboxylic acid having 7 to 10 carbon atoms in combination.
炭素数１〜６の脂肪族モノカルボン酸若しくは炭素数７
〜10の芳香族モノカルボン酸１〜1,000重量部を組合わ
せてなる農業用種子消毒剤。2. 100 parts by weight of a benzimidazole type disinfectant and an aliphatic monocarboxylic acid having 1 to 6 carbon atoms or 7 carbon atoms
Agricultural seed disinfectant comprising 1 to 1,000 parts by weight of 10 to 10 aromatic monocarboxylic acids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25634088A JPH0798725B2 (en) | 1988-10-12 | 1988-10-12 | Agricultural seed disinfectant efficacy enhancement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25634088A JPH0798725B2 (en) | 1988-10-12 | 1988-10-12 | Agricultural seed disinfectant efficacy enhancement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02104506A JPH02104506A (en) | 1990-04-17 |
| JPH0798725B2 true JPH0798725B2 (en) | 1995-10-25 |
Family
ID=17291314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25634088A Expired - Fee Related JPH0798725B2 (en) | 1988-10-12 | 1988-10-12 | Agricultural seed disinfectant efficacy enhancement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0798725B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2726156B1 (en) * | 1994-10-27 | 1999-04-30 | Xeda International | THIABENDAZOLE ACETATE SOLUTION IN ACETIC ACID / WATER MIXTURE AND USE THEREOF |
| JP2005350408A (en) * | 2004-06-11 | 2005-12-22 | Kyooei:Kk | Disinfectant and sterilization method for seed rice |
| FR3096872A1 (en) | 2019-06-05 | 2020-12-11 | UPL Corporation Limited | fungicidal composition for controlling zymoseptoria infection in plants |
-
1988
- 1988-10-12 JP JP25634088A patent/JPH0798725B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02104506A (en) | 1990-04-17 |
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