KR810000238B1 - Agricultural and horticultural fungicidal compositions - Google Patents

Abstract

Agricultural and horticultural fungicidal compositions were prepd. Thus, benzanilide of formula I(R = alkyl, alkoxy; X = halogen, alkyl) was mixed at the ratio of 3 : 1 or 1 : 3 with one of the organic phosphorous compds. of formula A(R = alkyl), B (R = alkyl),C(R = alkyl; X = halogen. nitro or cyano. m = 0-3), D (R = alkyl; X = oxygen or sulfur, etc.) and E(R = R1 = alkyl) to give title compositions.

Description

Agricultural Horticulture Sterilization Composition

The present invention provides a benzanilide represented by the following general formula (I) and an organophosphorous compound selected from the group represented by the following general formulas (A), (B), (C), (D) and (E); It relates to a horticultural sterilizing composition comprising a.

[General Formula]

In the general formula (I),

(여기서 X는 니트로기 혹은 메틸티오기),R is an alkyl or alkoxy group, X is a halogen, an alkyl group and R is an alkyl group in formula (A), R is an alkyl group in formula (B), R is an alkyl group in formula (C), X is a halogen, nitro group or cyano group, m is 0-3 and (D) where R is an alkyl group, X is an oxygen or sulfur atom, and R '

(Where X is a nitro group or a methylthio group),

Wherein X is halogen and n is 0-3 and R and R 'in the formula (E) represent an alkyl group.

This invention aims at controlling the disease of a plant with the use amount of benzanilide represented by the said general formula in a lesser dosage, and was completed as a result of advancing the cooperative agent. In the case of mixing and using benzanilide represented by the above general formula and the organophosphorus compound of the above general formula, the control effect is particularly high against rice blight disease, and each component of the mixture is It was found that much larger than a simple synthesis of the control effect when used alone, and studied in detail, the so-called synergy between benzanilide and the organophosphorus compound shown in the general formula.

The benzanilide has a high control effect against soil diseases such as rice paddy disease, water bottle, risogonia, etc., but in consideration of more economical control, it is desirable to reduce the amount of use as much as possible.

On the other hand, the organophosphorus compound represented by the general formula is used as an insecticide for agriculture or as a fungicide for thermal diseases, and it is known to have some control effect against rice paddy disease. However, practically, it is difficult to say that it has sufficient effect.

MEANS TO SOLVE THE PROBLEM The present inventors control rice paddy disease at much lower concentration compared with the case where benzanilide is used alone by the synergistic effect when mixing benzanilide represented by said general formula and organophosphorus compound represented by the said general formula. The inventors have found that it is possible to complete the present invention. In addition, the mixture of the present invention can control diseases such as heat diseases, sesame leaves, and the like, which are impossible to control with the monosaccharide of benzanilide represented by the above general formula.

As benzanilide represented by the above general formula

Compound A 3'-methyl-2-chlorobenzanilide (m.p. 124 ° C)

Compound B 3'-methoxy-2-bromobenzanilide (m.p. 162-164 ° C)

Compound C 3'-isopropoxy-2-iodobenzanilide (m.p. 94-96 ° C)

Compound D 3'-ethyl-2-methylbenzanilide (m.p. 125 ° C)

Compound E 3'-Isopropoxy-2-methylbenzanilide (m.p. 92-94 ° C)

Compound F 3'-sec-butoxy-2-methylbenzanilide (m.p. 75-77 ° C)

Compound G 3'-sec-butoxy-2-iodobenzanilide (m.p. 86-87 ° C)

Etc. can be mentioned.

Moreover, as an organophosphorus compound represented with the said general formula

Compound I S-benzyl-O, O-diisopropylphosphothiolate,

Compound II O-ethyl-S, S-diphenylphosphorodithiolate,

Compound III O-ethyl-O- (P-nitrophenyl) phenylphosphonothionate,

Compound IV O, O-dimethyl-O- (4-nitro-m-tolyl) phosphothioate,

Compound V O, O-dimethyl-O- (2-isopropyl-4-methyl-6-pyrimidyl) phosphothioate,

Compound VI O, O-dimethyl-O- (3,5,6-trichloro-2-pyridyl) phosphothioate,

Compound Ⅶ O, O-dimethyl-O-2-chloro-1- (2,4-thichlorophenyl) vinylphosphate,

Compound VII O, O-dimethyl-S-α-ethoxycarboylbenzylphosphorodithioate,

And the like.

These active ingredients include talc, kaolin, clay, diatomaceous earth, bentonite, white carbon, plant powder, xylene, toluene, micronucleanone, methyl ethyl ketone, DMF, DMSO, alkylbenzene, alkylbenzenesulfonates, and ligninfonates ( Ligninsulfonate), polyoxyethylene, alkylallyl ether, polyoxyethylene sorbitan monolaurate, and the like, by mixing a carrier diluent, a surfactant, a dispersant, an auxiliary agent, and the like, a powder, a hydrating emulsion, a fluid suspension, or a fine granule F. Use it as a granule, dilute it to a suitable concentration, or spray it directly.

Although an Example is given to the following, this invention is not limited to the range of an Example. In addition, the compound number is referred to the above. In the examples,% indicates the weight percentage.

Example 1. Powder

3% of Compound A, 2% of Compound I, and 95% of an equal mixture of talc and clay are mixed and ground to obtain a powder.

Example 2. Hydration

25% of Compound B, 25% of Compound II, 45% of diatomaceous earth, 3% of soda salt of dinaphthylmethane disulfonic acid, and 2% of soda lignin sulfonic acid were mixed and ground to obtain a hydrate.

Example 3. Granulation

3% of compound G, 3% of compound III, 3% of white carbon, 20% of bentonite, 47% of talc, 20% of clay, 1% of alkylallyl sulfonic acid sodium, 1% of sodium lignin sulfonic acid It is combined with water, granulated, dried and granulated.

Example 4. Emulsion

20% of compound D, 20% of compound IV, 30% of cyclohexanone, 20% of xylene, 10% of a mixture of polyoxyethylene alkylallyl ether, polyoxyethylene sorbitan monolaurate, and alkylallyl sulfonic acid sodium hydroxide Emulsion.

Example 5 Flow Suspension

25% compound E, 25% compound III, 10% ethylene glycol monobutyl ether, 8% mixture of polyoxyethylene noryl enol ether, polyoxyethylene sorbitan monobutylate and alkylallylsulfonate, colloidal hydrous aluminum silicate 3 % And water 29% are mixed, followed by wet grinding to obtain a homogeneous flow suspension. Next, the effect of the agricultural and horticultural sterilizing composition of the present invention is shown by the test example.

[Test Example 1]

Three rice seedlings (kind: Geumnam style) were transplanted into a 15cm diameter white pot, and each of them was sprayed 20cc per 3 pots at a distance of 1m using a turntable and a spray gun. did. After spraying, the cells were left in a greenhouse for 24 hours, weighed with rice bran cultured beforehand, and inoculated at the base of rice. After inoculation, the resultant was placed in an inoculation chamber of 27-28 ° C. and saturated humidity, and after storage for 7 days, the length of the lesion was examined, and the control value was calculated by the following formula.

[Experience Result]

Claims (1)

Benzanilide represented by the following general formula (I) and the organophosphorus compound selected from the group represented by the following general formula (A), (B), (C), (D) and (E) are 3: 1-1 : Agricultural horticultural sterilization composition, characterized by containing at a weight ratio of 3.

In the general formula (I), R is an alkyl or alkoxy group, X is a halogen, an alkyl group and R is an alkyl group in formula (A), R is an alkyl group in formula (B), R is an alkyl group in formula (C), X is a halogen, nitro group or cyano group, m is 0-3 and (D) where R is an alkyl group, X is an oxygen or sulfur atom, and R '

(Where X is a nitro group or a methylthio group),

Wherein X is halogen and n is 0-3 and R and R 'in the formula (E) represent an alkyl group.