JPS5855401A - Soil disease controlled for agricultural and horticultural purpose - Google Patents

Abstract

PURPOSE:The titled composition that contains diisopropyl 1,3-dithiolan-2-ylidene- malonate and another compound as active ingredients, thus developing higher controlling effect against soil diseases such as cabbage clubrot than the single use. CONSTITUTION:The objective controlled contains diisopropyl 1,3-dithiolan-2-ylidenemalonate, effective mainly against rice blast and N-(1-n-butoxy-2,2,2-trichloroethyl)-2-hydroxybenzamide, effective against soil diseases at a ratio of 3/1-1/3. The resultant controller can also completely cure the withering at the above- ground part of the crops as in case of their single applications. The controller is applied to the above-ground part of the crops to be protected or through soil treatment for both preventive and curing purposes. The does is more than 500g/10a as the active ingredients, when it is used directly in the form of dust or granules.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides diisopropyl, 3-dithiolane-2-
Ylidene malonate (hereinafter referred to as compound Toneri) and N-(
1-n-butoxy-2,2,2-trichloroethyl)-
2- and droxibenzamide (hereinafter referred to as compound B)
Regarding a soil disease control agent for agriculture and horticulture, which is characterized by containing as an active ingredient, Compound A is a known compound described in Japanese Patent Publication No. 47-34126, and is mainly effective against rice and rice blast diseases. be.

Compound B is a known compound described in JP-A-54-39040 and has activity as a soil disease control agent.

As a result of research into soil disease control agents, the present inventors have discovered that compounds can be used to prevent soil diseases such as cabbage clubroot, Chinese cabbage clubroot, radish crack browning, and potato powdery scab. It has been found that the pesticidal agent containing A and Compound B as active ingredients exhibits a higher pesticidal effect than when each agent is used alone. In particular, we have found that Compound A has a synergistic effect on cabbage clubroot disease and Chinese cabbage clubroot disease compared to the effects of each agent alone. Although the effect is extremely small, a remarkable synergistic effect can be obtained by using Compound B together with Compound Toneri.hi
t<should.

Moreover, by using Compound B together with Compound Toneri,
It has also been found that wilting in the soil area of crops can be completely cured when each of them is used alone.

This wilting of the above-ground parts of crops is caused by soil diseases, and therefore, curing of the wilting of above-ground parts of crops also belongs to the present invention.Producing a soil disease control agent containing compound A and compound gt/JB as active ingredients To do this, both components are mixed with a carrier (diluent) according to the conventional method for agricultural chemical formulations, and if necessary, desired adjuvants such as lv surfactants, dispersants, fixing agents, etc. are added. They may be added to form a dosage form convenient for use, such as powders, emulsions, flowables, tablets, aqueous preparations, fine granules, granules, etc.

The present invention is based on the fact that the combined use of Compound A and Compound B is effective in controlling soil diseases. Embodiments in which both are used in combination also belong to the scope of the present invention.

The blending ratio of Compound A and Compound B can be adjusted as necessary, but it is preferably selected as appropriate from 3:1 to 1=3.

The proportion of the active ingredient compound in the preparation is usually 0.5 to 20X in the case of a powder or powder, and 10 to 51.1% in the case of an emulsion or wettable powder. breeding)
is appropriate.

The present invention includes embodiments in which it is applied prophylactically, therapeutically or therapeutically to the top of the crop to be protected or through the soil.

The pest control agent of the present invention is applied to the heron, depending on factors such as the degree of damage
Although it varies depending on the occurrence tendency, weather, environmental conductivity, dosage form, etc., for example, when the final concentration of the active ingredient is used as a liquid, such as an emulsion or an aqueous phase agent, the final concentration of the active ingredient is generally 0. .01
%(-Ml) or more. When used directly as a powder or granule, 500 g or more of the active ingredient may be dispersed per 10 ares.

Furthermore, it is possible to expand the scope of application of this rule by blending the pesticidal agent of the present invention with other chemicals, insecticides, soil disease control agents, fungicides, or fertilizers.

Next, the present invention will be further explained with reference to Examples, but the present invention is not limited to these. In addition, "part" in the example indicates heavy M part 〇Example 1 Compound A 0.5 part Compound B
1 part white carbon 1 part PAP [(sopropyl acid phos7ate manufactured by Nippon Kagaku ■) 0.3 g Clay 97.2 g were uniformly mixed and pulverized to obtain a powder.

Example 2 Compound A 10 g Compound B 20 g Xylene
55 g of polyoxyethylene alkyl allyl ether (15 s) were uniformly mixed and dissolved to form an emulsion.

Actual sleeve example 3 Compound A 10 parts Compound 8 20 parts White carbon 20 parts Dodecylpensene sodium sulfonate 5 parts Clay
Mix and grind 45 g uniformly to make a wettable powder Example 4 Compound Toneri 5 Miyako Compound B
10 g polyvinyl alcohol 2 parts white carbon
5 parts Sodium dodecylbenzenesulfonate
0.2 parts clay
77.8 parts were mixed and ground, 18 parts of water was added and kneaded, and the mixture was granulated and dried using an extrusion granulator to form granules.

Examples of the present invention are shown below.

Test example Cabbage clubroot control test Cabbage clubroot fungus (Pl!asmodiophOra
bra-bs 1cae) Contamination - A predetermined amount of the powder of the present invention, which was not formulated in the same manner as in Example 1, was added to the field and mixed into the ridges, and then cabbage (product M: Nishikishu) seedlings at the 5-6 leaf stage were was planted. 5.7 m of combing per section (20 combs)
Toshina.

Claims (1)

[Claims] (1) Diisopropyl 1,3-dithiolane-2-ylidene malonate and N-(1-n-butoxy-2,2,
Agricultural soil disease control agent 0 characterized by containing 2-trichloroethyl)-2-hydroxybenzamide as an active ingredient.