JPH08113505A - Antimicrobial agent composition for agriculture and horticulture - Google Patents

Abstract

PURPOSE: To obtain an antimicrobial agent composition for agriculture and horticulture, having excellent control effects not only on chemical agent-resistant pathogenic microbes but also on conventional wide range pathogenic microbes. CONSTITUTION: This antimicrobial agent composition for agriculture and horticulture contains (A) 1,1'-iminiodi(octamethylene) diguanidine acid adduct salt, preferably a dicarboxylate salt (especially acetate salt), a sulfonate salt (especially an alkylbenzene sulfonate salt wherein the alkyl group has 10-13 carbons), and (B) an ethylenebisdithiocarbamate antimicrobial agent, preferably zinc ion-coordinated manganese ethylenebisdithiocarbamate (manzeb), bismethyldithiocarbamoyl zinc ethylene bisdithiocarbamate (polycarbamate) in an A:B weight ratio of 1:0.1-100, especially 1:1-10. The composition is preferably diluted with water for spraying. The concentrations of the active ingredients A and B on the spraying are 25-800ppm and 100-2500ppm, respectively.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an agricultural and horticultural fungicide composition having an excellent controlling effect.

[0002]

2. Description of the Related Art Acid addition salts of 1,1'-iminiodi (octamethylene) diguanidine are known to be effective against a wide range of diseases occurring in useful plants (Japanese Patent Laid-Open No. 62-62).
209003). On the other hand, ethylenebisdithiocarbamate-based fungicides include methyl = N- (2-methoxyacetyl) -N- (2,6-xylyl) -DL-alaninate (hereinafter referred to as metalaxyl) and 2-methoxy-N-.
As a mixture with an acylalanine compound such as (2-oxo-1,3-oxazolidin-3-yl) aceto-2 ', 6'-xylide, it is widely used in vegetables, potatoes and the like, which are difficult to control diseases. Used for certain plagues and downy mildews. However, lately, epidemics and downy mildews resistant to acylalanine fungicides have appeared, and the deadlock of control with such a mixture is becoming serious.

[0003]

Therefore, the problem to be solved by the present invention is to show an excellent control effect not only against general plant disease fungi but also against drug-resistant fungi, and effective against a wide range of diseases. To provide new drugs.

[0004]

Means for Solving the Problems As a result of various studies to solve the above problems, the present inventors have found that an acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine (hereinafter referred to as iminoctadine) A mixture with an ethylene bisdithiocarbamate fungicide is effective not only against general plant disease fungi but also against acylalanine fungicide-resistant fungi, and an excellent control effect against epidemics and downy mildews. And has an excellent control effect against diseases such as powdery mildew and gray mold that cannot be controlled by a mixture of an ethylenebisdithiocarbamate fungicide and an acylalanine fungicide. The present invention has been completed.

That is, the present invention relates to an agricultural and horticultural fungicide composition containing an acid addition salt of iminoctadine and an ethylenebisdithiocarbamate fungicide.
Examples of the acid addition salt of iminoctadine used in the present invention include carboxylates such as acetate, oxalate, laurate and oleate, sulfonates such as alkylsulfonate and alkylbenzenesulfonate, and hydrochloric acid. salt,
Examples thereof include carbonates, lauryl sulfates, sulfates and phosphates. Preferred are carboxylic acid salts and sulfonic acid salts,
Of these, 1,1′-iminiodi (octamethylene) diguanidinium = triacetate, which is an acetate, and 1,1′-, which is an alkylbenzene sulfonate, are preferable.
Iminiodi (octamethylene) diguanidinium = trisalkylbenzenesulfonate can be mentioned. The alkyl group of the alkylbenzene sulfonate has preferably 1 to 18 carbon atoms, and more preferably 10 to 13 carbon atoms. Particularly preferably, the alkyl group has 10 to 13 carbon atoms.
1,1′-iminiodi (octamethylene) diguanidinium = trisalkylbenzenesulfonate (hereinafter referred to as iminoctadine albesylate).

Examples of the ethylenebisdithiocarbamate fungicides used in the present invention include diammonium ethylenebisdithiocarbamate, zinc ethylenebisdithiocarbamate (hereinafter referred to as "geneb"), manganese ethylenebisdithiocarbamate (hereinafter referred to as "geneb"). , Manneb), zinc ion-coordinated manganese ethylene bisdithiocarbamate (hereinafter referred to as manzeb), bismethyldithiocarbamoyl zinc ethylene bisdithiocarbamate (hereinafter referred to as polycarbamate), and the like. Preferred are zineb, manneb, manzeb and polycarbamate, and particularly preferred are manzeb and polycarbamate.

[0007] The mixing ratio of the acid addition salt of iminoctadine, which is the active ingredient of the bactericide composition of the present invention, and the ethylenebisdithiocarbamate bactericide is 1: 0.1 by weight.
The range is 1: 100, preferably 1: 0.25 to 1:40, particularly preferably 1: 1 to 1:10.

The fungicide composition for agricultural and horticultural use according to the present invention can be used as it is without adding other components, but since it is easy to use as a fungicide, it can be used in various dosage forms. In addition to the components, a filler, a surfactant, other additives, and a suitable carrier such as water are mixed according to the purpose of use,
For example, it is possible to formulate wettable powder, flowable powder, powder, emulsion, oil, tablet, granule, aerosol, etc.,
A wettable powder is preferable from the viewpoint of the effect.

Examples of the extender include clay, talc,
Bentonite, kaolin and the like, and the surfactants include, for example, sodium salt of naphthalene formalinic acid condensate, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene dinonylphenyl ether sulfate ammonium salt, lauryl. Examples thereof include sodium sulfate and ligninsulfonic acid sodium salt, and examples of other additives include polyvinyl alcohol and white carbon.

In general, the above-mentioned active ingredient is contained in the above-mentioned preparation in an amount of 30 to 90% by weight, preferably 50 to 80% by weight. Further, the fungicidal composition for agricultural and horticultural use of the present invention can be used as a mixture with other known fungicides, insecticides and the like.

The fungicide composition for agricultural and horticultural use according to the present invention is a tomato blight, gray mold, leaf mold, leaf spot, anthracnose,
Ring spot disease, cucumber downy mildew, mildew, gray mold,
Anthracnose, vine wilt, plague, scab, brown spot, asparagus stem blight, leaf spot, gray mold, strawberry anthracnose, gray mold, squash powdery mildew, anthracnose , Downy mildew, vine wilt, plague, cabbage sclerotium, downy mildew, shungiku anthracnose, downy mildew, watermelon powdery mildew, sclerotium, anthracnose, downy mildew, vine Blight, plague, brown spot bacterial disease, onion vitiligo leaf blight, downy mildew, rust, black spot, gray rot, gray mold, white blight, eggplant powdery mildew, gray mold, black spot Disease, downy mildew of welsh onion, rust, black spot, downy mildew of Chinese cabbage, white spot, black spot, pepper sclerot, gray mold,
Downy mildew of spinach, powdery mildew of anemone, anthracnose, downy mildew, vine blight, plague, melon powdery mildew, anthracnose, downy mildew, vine blight, plague, brown spot bacterial disease , Lettuce gray mold, plum scab, gray mold, oyster powdery mildew, anthracnose, gray mold, leaf drop, scab, citrus gray mold, sunspot, yellow spot, small sunspot Disease, freckle disease, red flower disease, anthracnose, pear red scab, scab, black spot,
Ring-spot, Gray mold of grape, Late rot, Brown spot, Rust, Mildew, Black scab, Vine wilt, Cluster blight, Branch swelling, Peach scab, Orchard, Homopsis Rot, anthracnose, rust, leaflet, apple scab, spot leaf spot, ring spot, brown spot, soot spot, soot spot, black spot disease, red star disease, monilia disease, potato Plague, summer epidemic, adzuki bean stem blight, rust, anthracnose, gray mold, sclerotium, kidney bean anthracnose, rust, gray mold, sclerotium, broad bean rust,
Ring-spot, Purpura of soybean, powdery mildew of tobacco, red star disease, brown spot of sugar beet, leaf spot, anthracnose of tea, ring spot,
Excellent for controlling plant pathogens and drug-resistant bacteria that cause shoot blight, gray mold, scab, rust, downy mildew, anthracnose, gray mold, powdery mildew, etc. Asparagus, strawberry, pumpkin, cabbage, cucumber, composition
Chrysanthemum, watermelon, onion, tomato, eggplant, leeks,
Chinese cabbage, bell pepper, spinach, squirrel, melon, lettuce, plum, oyster, citrus, pear, grape, peach, apple, potato, adzuki bean, kidney bean, fava bean, soybean, tobacco, sugar beet, tea, flower (rose,
It can be applied during the growing season of crops such as chrysanthemum, carnation, cyclamen, and gentian).

The agricultural and horticultural germicide composition of the present invention is preferably diluted with water and sprayed. At this time, it can be sprayed by mixing it with an insecticide, a bactericide or the like. The active ingredient concentration at the time of spraying varies depending on the time of use, method, place, dosage form, target disease, target crop, etc., but the acid addition salt of iminoctadine is 25 ppm to 800 ppm, preferably 50 pp.
m to 400 ppm, particularly preferably 60 ppm to 200
ppm, and the ethylenebisdithiocarbamate fungicide is 100 ppm to 2500 ppm, preferably 100
ppm-2000 ppm, particularly preferably 150 ppm
Is in the range of up to 1500 ppm.

The amount of application varies depending on the time of use, method, place, dosage form, target disease, target crop, etc., but when sprayed on tomato, for example, the agent having the above-mentioned effective ingredient concentration is 150 to 300 L per 10 ares, and persimmon oysters. 20 when sprayed on
It is preferable to spray 0 to 700 L.

[0014]

EXAMPLES Next, the present invention will be specifically described with reference to examples and test examples, but the present invention is not limited to the examples and test examples. The "parts" in the text are based on weight. [Example 1] Wettable powder 1 Iminoctadine albesylate 100 parts Zineb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ───── ────────────────────────────── After putting 1000 parts or more into a ribbon mixer and mixing well, pulverize thoroughly with an atomizer. To obtain a wettable powder.

[Example 2] Wettable powder 2 Iminoctadine albesylate 100 parts Manneb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ── ───────────────────────────────── After adding 1000 parts or more to the ribbon mixer and mixing well, use an atomizer. It was sufficiently pulverized to obtain a wettable powder.

[Example 3] Wettable powder 3 Iminoctadine albesylate 100 parts Manzeb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ── ───────────────────────────────── After adding 1000 parts or more to the ribbon mixer and mixing well, use an atomizer. It was sufficiently pulverized to obtain a wettable powder.

[Example 4] Wettable powder 4 iminoctadine albesylate 100 parts Polycarbamate 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ─ ────────────────────────────────── After adding 1000 parts or more to the ribbon mixer and mixing well, add to the atomizer. And sufficiently pulverized to obtain a wettable powder.

[Example 5] Wettable powder 5 Iminoctadine acetate 100 parts Manzeb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ──── ─────────────────────────────── After mixing 1000 parts or more into a ribbon mixer and mixing well, thoroughly pulverize with an atomizer. To obtain a wettable powder.

[Example 6] Wettable powder 6 Iminoctadine carbonate 100 parts Manzeb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ──── ─────────────────────────────── After mixing 1000 parts or more into a ribbon mixer and mixing well, thoroughly pulverize with an atomizer. To obtain a wettable powder.

[Example 7] Wettable powder 7 Iminoctadine sulfate 100 parts Manzeb 375 parts Clay 335 parts Lignin sulfonic acid sodium salt 20 parts Polyoxyethylene alkylphenyl ether 50 parts Polyvinyl alcohol 20 parts White carbon 100 parts ──── ─────────────────────────────── After mixing 1000 parts or more into a ribbon mixer and mixing well, thoroughly pulverize with an atomizer. To obtain a wettable powder.

Example 8 Wettable powder 8 Iminoctadine albesylate 100 parts Manzeb 250 parts Clay 470 parts Sodium sulfate of naphthalene formalin condensate 50 parts Sodium lauryl sulfate 30 parts White carbon 100 parts ───── ────────────────────────────── After putting 1000 parts or more into a ribbon mixer and mixing well, pulverize thoroughly with an atomizer. To obtain a wettable powder.

[Example 9] Wettable powder 9 Iminoctadine Arbesylate 100 parts Polycarbamate 250 parts Clay 470 parts Sodium sulfate of naphthalene formalin condensate 50 parts Sodium lauryl sulfate 30 parts White carbon 100 parts ──── ─────────────────────────────── After mixing 1000 parts or more into a ribbon mixer and mixing well, thoroughly pulverize with an atomizer. To obtain a wettable powder.

[Comparative Agent 1] Iminoctadine Arbesylate Wettable Powder Iminoctadine Arbesylate 400 parts Polyoxyethylene lauryl ether 50 parts Clay 150 parts White carbon 400 parts ─────────────── ───────────────────── 1000 parts or more were put into a ribbon mixer and mixed well, and then thoroughly pulverized with an atomizer to obtain a wettable powder.

[Comparative Agent 2] A commercially available iminoctadine acetate liquid agent (manufactured by Dainippon Ink and Chemicals, Inc.) was tested.

[Comparative Agent 3] A commercially available Manzeb wettable powder (manufactured by Tokyo Organic Chemical Industry Co., Ltd.) was tested.

[Comparative drug 4] A commercially available manzeb / metalaxyl wettable powder (manufactured by Sankyo Co., Ltd.) was tested.

[Comparative Drug 5] Commercially available 6-methylquinoxaline-2,3-dithiocarbonate (hereinafter referred to as quinomethionate) wettable powder (manufactured by Japan Bayer Agrochem).
Was tested.

[Comparative Drug 6] Commercially available 1- (4-chlorophenoxy) -3,3-dimethyl-1- (1,2,4-triazol-1-yl) -2-butanone (hereinafter referred to as triadimefone) ) A wettable powder (manufactured by Nihon Bayer Agrochem) was tested.

[Comparative Drug 7] Commercially available 3- (3,5-dichlorophenyl) -N-isopropyl-2,4-dioxoimidazolidine-1-carboxamide (hereinafter referred to as iprodione) wettable powder (Nissan Chemical Industry) (Made by the company) was tested.

[Test Example 1] Tomato epidemic control effect test Tomato (cultivar: Toyofuku) cultivated in a polypot with a diameter of 9 cm was tested on 9 strains per drug. Each drug was diluted with water so that the active ingredient had the values shown in Tables 1 and 2, and tomatoes at the 3.5 leaf stage at the start of the test were uniformly sprayed with a water dilution of each drug using a spray gun. did. After air-drying, spray-inoculate a zoospore suspension of Phytophthora infestans (metalaxyl-resistant bacterium) to 25
It was allowed to stand in a humidity chamber at ℃ for 24 hours. After culturing in a greenhouse for 6 days, the disease state was investigated according to the following criteria, the disease index was calculated, the disease degree was calculated by Formula 1, the control value was calculated by Formula 2, and the expected control value was calculated by Formula 3. The results are shown in Tables 1 and 2.

Disease occurrence index 0: No disease occurrence 1: Lesion area is less than 10% of the strain 2: Lesion area is 10% or more and less than 25% of the strain 3: Lesion area is 25% or more and less than 50% of the strain 4: The lesion area is more than 50% of the strain

[0032]

[Equation 1]

[0033]

[Equation 2]

[0034]

(Equation 3) However, m and n are the control value of each single agent

[0035]

[Table 1]

[0036]

[Table 2]

The control values of the wettable powders 1 to 7 against the metalaxyl-resistant tomato epidemic were superior to those of the single-agent comparative agents 1 to 3 and to the conventional combination agent of the comparative agent 4. Furthermore, the control values of the wettable powders 3 and 5 were higher than the expected control values obtained from the control values of the comparative agents 1 and 3 and the comparative agents 2 and 3, respectively, and the synergistic effect of the mixture was observed.

[Test Example 2] Cucumber downy mildew control effect test Cucumber (cultivar: Angkor 10) under conventional cultivation in a greenhouse was tested for 16 strains per drug. Table 3 shows the active ingredients
Each drug was diluted with water so that the value shown in Table 1 was obtained, and a water-diluted solution of each drug was sprayed on cucumber at the 10-leaf stage at the start of the test three times at 1-week intervals using a power sprayer. Final application 14
After a day, the onset state of downy mildew naturally occurring on the top 10 leaves was determined by the same disease index as in Test Example 1, and the degree of disease was calculated by Formula 4, the control value was calculated by Formula 2, and the expected control value was calculated by Formula 3. It was Table 3 shows the results.

[0039]

[Equation 4]

[0040]

[Table 3] The control effects of the wettable powders 8 and 9 are superior to those of the single-agent comparative agents 1 and 3, respectively, and the conventional combination agent of the comparative agent 4
It was better. Furthermore, the control value of wettable powder 8 is
It was higher than the expected control value obtained from the control values of 3 and 3, and the synergistic effect of the mixture was observed.

[Test Example 3] Cucumber powdery mildew control effect test Cucumber (cultivar: Sharp 1) under conventional cultivation in a greenhouse was tested for 12 strains per drug. Each drug was diluted with water so that the active ingredient had the values shown in Table 4, and cucumber at the 10-leaf stage at the start of the test was diluted with a water-diluted solution of each drug three times at 1-week intervals using a power sprayer. Sprayed. Four days after the final spraying, the pathogenic state of naturally occurring powdery mildew was investigated by the same method as in Test Example 2, and the degree of onset was determined by Formula 4. The results are shown in Table 4.

[0042]

[Table 4] The control effects of the wettable powders 8 and 9 were superior to those of the known comparative drugs 5 and 6 useful for powdery mildew.

[Test Example 4] Tomato gray mold control effect test Tomatoes under conventional cultivation in greenhouse (variety: first)
12 strains were tested per drug. Each drug was diluted with water so that the active ingredient had the values shown in Table 5, and the
Further, tomatoes in the flowering stage of the third flower cluster were sprayed with a water dilution of each drug 5 times at 1-week intervals using a power sprayer. The number of diseased fruits and the number of disease-free fruits were investigated from the start date of the test to 13 days after the final application, and the diseased fruit rate was calculated by Formula 5.
The results are shown in Table 5.

[0044]

(Equation 5)

[0045]

[Table 5] The control effects of the wettable powders 8 and 9 were superior to those of the known comparative drug 7 useful for Botrytis cinerea.

[0046]

The agricultural / horticultural fungicide composition containing the acid addition salt of iminoctadine and the ethylenebisdithiocarbamate fungicide is effective not only against drug-resistant pathogens but also against a wide range of conventional pathogens. It has an excellent control effect.

Claims (9)

[Claims] 1. A fungicidal composition for agricultural and horticultural use, comprising an acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine and an ethylenebisdithiocarbamate fungicide as active ingredients. 2. The agricultural / horticultural fungicide composition according to claim 1, wherein the acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine is a galbonate. 3. The agricultural / horticultural fungicide composition according to claim 1, wherein the acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine is a sulfonate. 4. The agricultural / horticultural fungicide composition according to claim 2, wherein the acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine is 1,1′-iminiodi (octamethylene) diguanidinium = triacetate. 5. The agricultural / horticultural fungicide composition according to claim 3, wherein the acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine is 1,1′-iminiodi (octamethylene) diguanidinium = trisalkylbenzenesulfonate. Stuff. 6. The alkyl group of 1,1′-iminiodi (octamethylene) diguanidinium = trisalkylbenzenesulfonate has 10 to 13 carbon atoms.
The agricultural and horticultural fungicide composition described. 7. An ethylenebisdithiocarbamate fungicide is zinc ethylenebisdithiocarbamate, manganese ethylenebisdithiocarbamate, zinc ion coordination manganese ethylenebisdithiocarbamate, bismethyldithiocarbamoyl zinc ethylenebisdithio. 2. The one selected from the group consisting of carbamates.
The agricultural / horticultural fungicide composition according to any one of claims 1 to 6. 8. The agricultural / horticultural fungicide composition according to claim 7, wherein the ethylenebisdithiocarbamate fungicide is zinc ion-coordinated Manganese ethylenebisdithiocarbamate or bismethyldithiocarbamoyl zinc ethylenebisdithiocarbamate. Stuff. 9. The mixing ratio of the acid addition salt of 1,1′-iminiodi (octamethylene) diguanidine and the ethylenebisdithiocarbamate fungicide is from 1: 1 by weight.
The agricultural / horticultural fungicide composition according to any one of claims 1 to 8, which is 1:10.