JPS58208202A - Agricultural and horticultural germicidal composition - Google Patents

Abstract

PURPOSE:The titled composition, containing a polyoxin complex mixed with a specific compound as active constituents, capable of controlling a wide range of plant blights, e.g. powdery mildew (Podosphaera leucotricha) of apples, and exhibiting improved synergistic controlling effects. CONSTITUTION:An agricultural and horticultural germicidal composition prepared by incorporating (E)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1- yl)-1-penten-3-ol having powerful preventing and remedial effects on many plant blights, e.g. grains, fruit trees, vegetables, etc. with a polyoxin complex of formula I (R<1> is hydroxymethyl, carboxyl, CH3 or H; R<2> is OH or polyoximic acid residue; R<3> is OH or H) having powerful germicidal efficacies against plant blights caused by fungi belonging to the genus Alternaria and powdery mildew, etc. as active constituents at 1:(0.1-10) weight ratio. A carrier or an adjuvant is added to give 0.1-99.9wt% resultant mixture, and the resultant germicide is formulated in the dosage form of a granule or wettable powder, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides (El-1-(2,4-dichlorotunyl)
-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-1-penten-8-ol (hereinafter referred to as compound diagram) and the general formula [wherein R' is hydroxymethyl represents a group, a carboxyl group, a methyl group or a hydrogen atom, or represents a hydrogen atom. ] The present invention relates to a disinfectant composition for agricultural and horticultural use (hereinafter referred to as the composition of the present invention) containing a polyoxin polymer (hereinafter referred to as polyoxin) as an active ingredient.

Polyoxin, which is one of the active ingredients of the composition of the present invention, has a strong bactericidal effect against plant diseases caused by the genus Alternaria and powdery mildew, but the range of plant diseases for which its practical control effect can be expected is not wide. (edited by Fusui Fu, Pesticide Handbook, Japan Plant Protection Association, 1976) The compound diagram (described in Japanese Patent Application Laid-open No. 124771/1982) is effective against many plant diseases such as grains, fruit trees, and vegetables.
It is known to have strong preventive and therapeutic effects. However, sufficient control effects cannot be expected against plant diseases caused by the genus Alternaria.

The present inventors have discovered that the composition of the present invention enables the control of a wide range of plant diseases and has a synergistic enhancement of the control effect.

The compositions of the present invention can be used against a wide range of plant pathogens, such as apple powdery mildew (Podosphaera 1euco).
-tricha), Venturia +
Mycosphae nae), Mycosphae
rella pomi (Altern)
aria mali), Marssoni
namali), Monilia disease fungus (5clerotini)
a mali), pear scab fungus (venturia venturia)
nashicola), Gymnospo
rangium haraeanam), black spot fungus (
A Hernaria kikuchiana), powdery mildew of oysters (phyllactinia kaki)
cola), anthracnose (Gloeosporium
kaki), peach gray layer fungus (Scle-rotin)
ia cinerea), and Qladosp.
orium carpophilum), phOmOp-sis sp., botrytiscinerea of grapes,
Ercospora viticola
), powdery mildew (Uncinula necator
), Blsinoe ampelina
), Qlomerellaclngul
ata), sugar beet brown spot fungus (Oercospor
abeticola), peanut brown spot fungus (ae
rcospo-ra arachidicola),
Oercospora persona
), barley powdery mildew (Erysip-he g
raminis f, sp bordei), i.
Spot disease fungi (□Ercosporeles a herpo
trichoides), cloud fungus (1'1hynch
osporiurn 5ecalis), Puccinia gramarum, Puccinia graminis, Typhula, Gibbere
lla zeae), naked smut fungus (Ustil-ag)
o nuda), Helminthosp.
orium, grami neum), red snow rot (Fusarium n1vale), wheat powdery mildew (Erysjphe graminis)
f.

sp, tritici), Fusarium rust (Puccinium sp.
ia reco-ndita), leaf blight m (5ept
oria tritici), Blight W! i (Le
ptosphaeria nodoru+i), snow rot large-grained sclerotia fungus (8cierotinia boreal
is ), cucumber powdery mildew fungus (5phaerot
heca fuliginea), anthracnose (Ool
letotrichum lagenariam)
, Mycosphaerella mel
onis), Sclerotinia s
c+erotiorum), Botrytis bacterium (Botr
ytis cinerea), and Qla
dospo-rium cucumerinum)
, tomato leaf mold fungus (Oladosporium f.
ulvum), botrytis fungus (Bot-rytis
cinerea), eggplant black blight fungus (Oorynes
porame Jongenae), strawberry powdery mildew (Sphaer-otheca humuli)
), Fusarium oxyspo-r
um f, sp, fragariae), onion gray rot fungus (Botrytis alli)
), Lettuce Sclerotinia sc
lerotiorum), celery spot fungus (Oe
rcospora apii), Inge7-'? phaeoisariopsis gris
eola), powdery mildew of tobacco @ (Erysip
he cichoracearum), Diplocarpon rosae on roses, Elsinoe fawcetti on mandarin oranges
, Penicillium italic
um), green mold fungus (Penici-order ium dig
Itatum) has excellent control effects.

r ζ A The composition of the present invention can be formulated into powders, granules, wettable powders, emulsions, fine granules, flowables, aerosols, etc. using solid carriers, liquid carriers, surfactants, and other formulation auxiliaries. and apply.

These preparations contain compound (A) and polyoxin as active ingredients in a weight ratio of 1:0.1 to 10, preferably 1:1.
:0.5 to 50%, preferably 0.1 to 99.9%, preferably 0.2 to 80%, according to a conventional formulation method.

Solid carriers include vegetable carriers (e.g., tobacco, corn, wheat flour, soybean flour, walnut shell powder, wood flour, cellulose powder), synthetic resin carriers (e.g., vinyl chloride, polystyrene, polyethylene, petroleum resin), and mineral materials. Supports (e.g. clays such as attapulgus clay, kaolin clay, bentonite, acid clay, sericite, vermiculite, and silicate, talc, anhydrite, diatomaceous earth, zeolite, pumice, silica sand, activated carbon, white carbon, gypsum) ), fertilizer carriers (for example, ammonium sulfate, ammonium phosphorus, ammonium nitrate, ammonium chloride, urea, and other chemical fertilizers (6)).

Liquid carriers include aliphatic and alicyclic hydrocarbon carriers (
For example, kerosene, 77% oil, mineral spirits, solvent Buchsa), aromatic hydrocarbon carriers (for example, xylene, menalnaphthalene, nonylphenol), alcohol carriers (for example, methyl alcohol, ether alcohol, ethyl alcohol, ethyl glycol, and boric acid). (e.g., dioxane, cellosolve), ketone carriers (e.g., methyl ether ketone, methyl isobutyl ketone, cyclohexanone, isophorone), halogenated hydrocarbon carriers (e.g., dichloroethane, trichloroethane, Salt (IJ
Examples include carriers such as bases), esters, diamides, other carriers (eg, dioctyl phthalate, tricresyl phosphate, acetonitrile, dimethylformamide, dimethyl sulfoxide, fats and oils), and water.

Next, various formulation auxiliaries such as surfactants, wetting agents, fixing agents, thickeners, and stabilizers include sulfonates such as alkyl sulfonates, sulfosuccinates, and alkylaryl sulfonates; Sulfuric ester salts such as ester sulfates, alkyl sulfates, ether sulfates, alkylaryl ether sulfates, phosphoric ester salts such as alkylaryl ether phosphates, formalin combination sulfonates, and other anions such as carboxylic acid fences. surfactant,
Ethers such as alkyl and alkylaryl polyoxyena ethers and block polymers with polyoxyfluorene as the lipophilic group, polyoxyethylene ethers of sorbitan esters, tonoether esters such as esters of sorbitol polyoxyenalene ethers, polyoxyethylene Bwuel stell, chrycerin ester,
Nonionic surfactants such as esters such as sorbitan esters, citric acid esters, l-sugar esters, casein, gelatin, starch, OMO (calhoki/methyl cellulose), PV
Water-soluble polymers such as A (polyvinyl alcohol), gum arabic, alginic acid, molasses, agar, calcium or sodium lignosulfonate, stearic acid, oleic acid, valmitic acid, various fatty acids such as pine oil, tall oil, pine oil, soybean oil, etc. Its esters include liquid paraffin, alkyl (tJL T OP (tricresyl phos 7 ether), PAP (inglovir phosphate), bentonite, etc.

The preparation thus prepared is applied as is or diluted with water according to a conventional method.

Of course, other fungicides, acaricides, nematicides, insecticides,
It can also be applied simultaneously with or without mixing with seed disinfectants, herbicides, fertilizers, soil conditioners, etc.

Next, formulation examples of the composition of the present invention will be shown.

Formulation example 1. powder % powder is obtained.

Formulation example 2. Wettable powder (9) Additive (A) 10 parts, polyoxin 20ffB, Jff
45 parts of ifi soil, 20 parts of white carbon, 8 parts of wetting agent (sodium lauryl sulfate), and 2 parts of parting agent (calcium lignin sulfonate) are pulverized and mixed to give an 80%
Get Mizuso Norikin.

Formulation example 8. “25 parts of hydrating compound, 50 parts of polyoxin, 18 parts of diatomaceous earth,
Moisture [IJ (calcium alkylbenzene sulfonate) 8
, 5 parts and bulking agent (calcium ligninsulfonate)
By thoroughly grinding and mixing 8.5 parts, a 75% wettable powder is obtained.

When the composition of the present invention is applied as a plant disease control agent, an application amount of 1 f to 200 p (per #) of 10 ares per active ingredient is appropriate, and the application concentration is as a wettable powder, emulsion, flowable agent, etc. 0.001 when diluted with water and applied
% to 0.2% is preferred. In the case of powders, granules, etc., they are usually applied as is without any dilution. These application axis and application concentration vary depending on the formulation, the time of application, location, application method, plant (10), type and severity of disease, etc., and also vary depending on the type of crop. Furthermore, the concentration may be changed by increasing or decreasing it without being limited to the above range.

Next, the effect of controlling plant diseases by the composition of the present invention will be shown using test examples.

Test example 1. Cucumber gray mold control effect 7. Cucumbers (variety: Sumo Hanshiro) were sown in plastic pots filled with sandy loam soil. This was cultivated in a greenhouse for 8 days to obtain cucumber seedlings with expanded cotyledons. A water-diluted solution of the test drug prepared in accordance with Formulation Example 2 in the form of 9 tablets was sprayed on the foliage of the seedlings so that the drug solution was sufficiently adhered to the leaf surface. Cucumber gray mold fungus (Botrytisciner) was detected on young seedlings after air-drying the chemical solution.
ea) was inoculated and placed in a humid incubator at 20°C. After 8 days, the diseased state of the cotyledons was observed.

The disease severity was calculated by the following method. That is, the lesions were classified into indexes of 0.0.5.1.2.4 according to the degree of appearance of lesions on the investigated leaves, and the degree of disease was determined by the following formula.

(Incidence index) 0 No complaints of fungus vII or lesions on leaves.

0.5" increase in bacterial flora or disease spots by 5% of the leaf area.

1. #i or lesions appear on the leaf surface in less than 20% of the leaf area.

2 Bacterial flora or j on less than 50% of the leaf surface area
Admit the tip.

4. Bacterial flora or lesions are observed on the leaves of 50% or more of Kamendan.

The control value was calculated using the following formula.

The results are shown in Table 1.

M1 table test example 2. Effect on controlling apple spot mulberry disease: Apply a water diluted solution of the test drug prepared as a wettable powder according to Formulation Example 2 to a potted apple seedling (Starking Delicious) so that the solution adheres sufficiently to the leaf surface. It was embossed. After the chemical solution was air-dried, it was left in a natural state for 7 days. 1108 on the 58th day of the exam
WL rainfall was observed. After that, apple spot defoliation fungus (
A conidial suspension of Alternaria mali) was inoculated and kept in a humid state at 20 to 25° C., and five spot inspections were conducted.

The disease onset investigation method and control value calculation were performed in the same manner as in Test Example 1.

The results are shown in Table 2.

Table 2 (Complete 18) Procedural amendment (voluntary) July 26, 1980 1 Indication of case 1982 Patent application No. 91931 2 Name of invention Agricultural and horticultural fungicide 3 Person making the amendment Related Patent Applicant Address 5-15 Kitahama, Higashi-ku, Osaka Name (20
9) Hijikata, Representative of Sumitomo Chemical Industries, Ltd.
Take 4, Agent Address: 5-15-5 Kitahama, Higashi-ku, Osaka, Japan Column for detailed explanation of the invention in the specification subject to amendment Contents of amendment (1) The specification will be corrected as follows.

(2) (3 complete)

Claims (1)

[Claims] 1gl-1-(2,4-dichlorophenyl)-4,,4
-dimethyl-2-(1,2,4-triazino-l)
An agricultural and horticultural fungicidal composition comprising -1-penten-8-ol and a polyoxine complex as active ingredients.