JPH06234609A - Phytotoxicity reducing agent - Google Patents

Abstract

PURPOSE:To obtain a composition of an inorganic copper agent for reducing phytotoxicity or an inorganic copper preparation having reduced phytotoxicity. CONSTITUTION:The objective composition of a copper agent for reducing phytotoxicity comprises a phospholipid as an active ingredient or the objective agrichemical composition having reduced phytotoxicity comprises the phospholipid and an inorganic copper agent as active ingredients. This agrichemical composition has no phytotoxicity and an extremely low degree of plant pollution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for reducing phytotoxicity of an inorganic copper agent, which contains a phospholipid as an active ingredient, and an inorganic copper preparation containing the above-mentioned active ingredient and having reduced phytotoxicity.

[0002]

2. Description of the Related Art In the cultivation of agricultural and horticultural crops, a large number of pests and insects are generated, which causes the quality of products to be reduced and the yield to be reduced. As a measure for controlling pests causing such quality deterioration and yield reduction, a wide variety of drugs have been developed and are effectively used both in Japan and overseas. For example, inorganic copper agents (basic copper chloride, basic copper sulfate, cupric hydroxide, etc.) have a broad antibacterial spectrum, are highly safe for humans and animals, and are inexpensive and have long been used as horticultural germicides. ing. However, this inorganic copper agent causes phytotoxicity to vegetables such as Cucurbitaceae and Brassicaceae and to fruit trees such as citrus fruits, grapes and peaches, and is rarely used alone. Calcium carbonate is mainly used as a phytotoxicity-reducing measure for this inorganic copper agent, and it shows some effect. However, the concentration of calcium carbonate added is high, and in leafy vegetables and fruits and vegetables, contamination by the added calcium carbonate is a serious problem. Furthermore, although a mixture of an inorganic copper agent and calcium carbonate has been developed, the concentration of the inorganic copper agent is kept low because a large amount of calcium carbonate is required to reduce the chemical damage. Since it contains a large amount of calcium carbonate, pollution to crops cannot be reduced. Further, as an agricultural chemical composition using phospholipid, Japanese Patent Publication No. 51-18501, Japanese Patent Publication No. 56-140910, Japanese Patent Publication No. 2-1
No. 9309 is known. They are used as agricultural and horticultural germicides, acaricides and machine oils as phytotoxicity reducers, but there were no cases where they were used as phytotoxicity reducers for inorganic copper agents.

[0003]

From these points, it is desired that the chemical damage-reducing agent for the inorganic copper agent has an excellent chemical-damage reducing effect and does not pollute the crop. As a result of diligent efforts by the present inventors to solve these problems, a phytolipid-containing composition containing phospholipids as an active ingredient, which is excellent in phytotoxicity-reducing effect and has no crop contamination, and the above-mentioned active ingredient and copper agent We have developed an inorganic copper preparation that contains and is reduced in phytotoxicity. As is clear from the above description, an object of the present invention is to provide a composition for reducing phytotoxicity of the above-mentioned inorganic copper agent or an inorganic copper preparation.

[0004]

The present invention has the following configurations (1) to (4). (1) A composition for reducing chemical damage of an inorganic copper agent containing a phospholipid as an active ingredient. (2) The composition according to (1) above, which comprises 5 to 40 parts by weight of a phospholipid and 95 to 60 parts by weight of a diluent. (3) A pesticidal composition containing a phospholipid and an inorganic copper agent as active ingredients and having reduced phytotoxicity. (4) The composition according to (3) above, which comprises 5 to 25 parts by weight of a phospholipid and 95 to 75 parts by weight of an inorganic copper agent.

The structure and effects of the present invention will be described below. The composition of the present invention has the following embodiments, for example. A. A phytotoxicity-reducing composition containing 5 to 40 parts (weight ratio) of phospholipid, which is used by adding a predetermined concentration to a diluting solution of an existing inorganic copper agent. B. An agrochemical composition in which a phospholipid is added to an inorganic copper agent, the compounding ratio of which is 5 to 25 parts, preferably 15 to 20 parts. The phytotoxicity-reducing composition and the agrochemical composition shown in A and B are diluted with water at the time of spraying for use, so various surfactants are added.
Wettable powders, emulsions and flowables are desirable. The phospholipid which is the active ingredient of the present invention is a generic term for lipids containing phosphorus and nitrogen, and is produced from oil seeds such as soybean, egg yolk, etc., soybean phospholipid, rapeseed phospholipid, cauliflower phospholipid. , Cottonseed phospholipid, egg yolk phospholipid and the like can be used.

The inorganic copper agent which is the active ingredient of the present invention is an inorganic copper compound used as an agricultural chemical. Specific examples thereof include basic copper chloride, basic copper sulfate and cupric hydroxide. The diluent in the invention (2) of the present invention comprises water, water and a surfactant, an organic solvent (for example, cyclohexanone) and a surfactant, and a surfactant and an inorganic fine powder (for example, white carbon). is there. The type of the surfactant is not limited, and any of an anionic surfactant, a cationic surfactant, a nonionic surfactant and an amphoteric surfactant can be used. The ratio of water (or an organic solvent) to the surfactant and the inorganic fine powder in the diluent is not limited, but the surfactant is added to 100 parts by weight of water (the organic solvent or the inorganic fine powder).
-50 parts by weight is preferred. The mixing method of the phospholipid and the diluent is not limited. For example, in the case of a flowable agent, a predetermined amount of both is placed in a paint shaker together with a predetermined amount of glass beads, and shaken, for example, at room temperature for 5 to 60 minutes. And mix. In the inventions (3) and (4) of the present invention, as in the case of the invention (2), a diluent may be applied and mixed to prepare a preparation.

[0007]

As described in detail in Test Examples 1 to 4 below, the phytotoxicity-reducing composition of the present invention shows almost no phytotoxicity when mixed with an inorganic copper agent and applied to a crop, The degree of pollution of crops is also extremely small compared to the usual inorganic copper preparations. Further, the pesticidal composition of the present invention is sprayed as it is (note, diluted to a predetermined concentration), and exhibits the same effect as that of the above composition for reducing phytotoxicity.

[0008]

EXAMPLES Next, examples of the present invention will be shown, but the present invention is not limited to the following examples as long as the gist of the present invention is not exceeded. Example 1 6 parts by weight of phospholipid (trade name: Basis LG-10E manufactured by Nisshin Oil Co., Ltd.) (hereinafter, parts by weight are simply referred to as parts), surfactant (trade name: Newcol 860 manufactured by Nippon Emulsifier Co., Ltd.) ) 0.8 parts, preservative (trade name: Proxel GXL
(Manufactured by ICI) 0.15 parts, and after adding the remaining amount of distilled water, add glass beads (diameter 1 mm) in the same amount as the preparation amount and mix with a paint shaker for 15 minutes to prepare 100 parts of the suspension-like preparation. Manufactured.

Example 2 40 parts of phospholipid (trade name: Basis LG-10E manufactured by Nisshin Oil Co., Ltd.), surfactant (trade name: Emulgen 9)
10 parts of Kao Corporation and 15 parts of cyclohexanone were mixed with the remaining amount to prepare 100 parts of emulsion.

Example 3 Phospholipid (trade name: Basis LP-20 Nisshin Oil Co., Ltd.)
40 parts, a surfactant (trade name: manufactured by Emulgen 910 Kao Co., Ltd.) 5 parts, white carbon 20 parts, and a residual amount of clay are added, and then mixed and ground using an analytical grinder to obtain 100.
Parts of wettable powder were prepared.

Example 4 38 parts of basic copper chloride and phospholipid (trade name: Basis LG
-10E Nisshin Oil Co., Ltd. 15 parts, surfactant (trade name: Emamine A-6060 Kyoeisha Yushi Co., Ltd.) 4 parts, surfactant (trade name: Emulgen 910 Kao Co., Ltd.) 5
Parts and white carbon were added, and the mixture was pulverized with an analytical pulverizer to produce 100 parts of wettable powder.

Example 5 42 parts of basic copper sulfate and phospholipid (trade name: Basis LG
-10E Nisshin Oil Co., Ltd. 15 parts, surfactant (trade name: Emamine A-6060 Kyoeisha Yushi Co., Ltd.) 4 parts, surfactant (trade name: Emulgen 910 Kao Co., Ltd.) 5
Parts and white carbon were added, and the mixture was pulverized with an analytical pulverizer to produce 100 parts of wettable powder.

Example 6 42 parts of cupric hydroxide and phospholipid (trade name: Basis LG
-10E Nisshin Oil Co., Ltd. 15 parts, surfactant (trade name: Emamine A-6060 Kyoeisha Yushi Co., Ltd.) 4 parts, surfactant (trade name: Emulgen 910 Kao Co., Ltd.) 5
Parts and white carbon were added, and the mixture was pulverized with an analytical pulverizer to produce 100 parts of wettable powder.

Example 7 1.25 parts of iminoctadine acetate, 22 parts of basic copper chloride, 15 parts of phospholipid (trade name: Basis LG-10E manufactured by Nisshin Oil Co., Ltd.), and a surfactant (trade name: Emamine) A-
6060 Kyoeisha Oil & Fat Co., Ltd. 5 parts, surfactant (trade name: Emulgen 910 Kao Co., Ltd.) 5 parts, after adding the remaining amount of white carbon, mixed and crushed using an analytical crusher, 100 parts A wettable powder was produced.

Example 8 Sulfur 12.5 parts, basic copper chloride 30 parts and phospholipid (trade name: Basis LG-10E manufactured by Nisshin Oil Co., Ltd.) 17.5
Parts, surfactant (trade name: Emamine A-6060 Kyoeisha Yushi Co., Ltd.) 4 parts, surfactant (trade name: Emulgen 9
10 parts of Kao Co., Ltd.) and 5 parts of white carbon were added and the mixture was pulverized with an analytical pulverizer to produce 100 parts of wettable powder.

[0016]

[Effect] The effect of the present invention will be described with reference to test examples. However, the phytotoxicity-reducing agent and the phospholipid-added inorganic copper preparation used in the test examples were prepared according to Examples 1 to 8. Test Example 1 Commercially available inorganic copper agent [San Bordeaux (basic copper chloride 44%
(As copper), Sankei Chemical Co., Ltd., Z Bordeaux (basic copper sulfate 32% (as copper), Tomono Agricultural Co., Ltd.), Coside Bordeaux (cupric hydroxide 50% (as copper), Sanmei Chemical Co., Ltd. Company), Befdo (basic copper chloride 44% (as copper), iminokudazine acetate, Sankei Chemical Co., Ltd.)] To the diluted solution, the phytotoxicity-reducing agents of Examples 1 to 3 were added to a predetermined concentration, and cucumber seedlings were added. The plants were sprayed 2-3 times at 7-day intervals. The state of occurrence of chemical damage and the degree of plant contamination in the final spraying 7 to 10 days were judged according to the following survey criteria. The results are shown in Tables 1 and 2. still,
The test was done in 2-3 replicates. Criteria for investigation of phytotoxicity −: No phytotoxicity ±: Slight leaf yellowing ＋: Clear leaf yellowing ++: Remarkable leaf greening ++: Remarkable leaf greening and leaf withering symptoms are also observed. Contamination survey criteria −: No contamination by chemicals ±: Slight contamination is observed. +: Contamination by the drug is clearly seen. ++: Contamination by the drug is remarkable and the leaves look white. Test Example 2 Examples 4 to 8 were diluted to a predetermined concentration and sprayed on cucumber seedlings 2-3 times at 7-day intervals. Final spray 7-10
Occurrence of phytotoxicity and degree of plant contamination were judged according to the following survey criteria. The results are shown in Table 3.
The test was repeated 2-3 times. The inspection standard for chemical damage and the inspection standard for contamination are in accordance with Test Example 1. Test Example 3 A commercially available inorganic copper agent [horticultural bordeaux (basic copper chloride copper 35% sulfur) Sankei Chemical Co., Ltd.] diluted with the phytotoxicity reducing agent of Example 1 at a predetermined concentration, and used as a kidney bean seedling. It was sprayed 3 times at 7-day intervals. The state of occurrence of chemical damage and the degree of plant contamination on the 10th day after the final application were judged according to the following inspection criteria. The results are shown in Table 4. The test was repeated 3 times. Criteria for investigation of phytotoxicity −: No phytotoxicity ±: Slight brown spots +: Brown spots coalesce into a chlorosis form. ++: Remarkable chlorosis, leaf curvature +++: Remarkable chlorosis, leaf curvature Remarkable growth of leaves is also observed. Contamination survey criteria −: No pollution due to drug damage ±: Slight contamination is observed. +: Contamination by the drug is clearly seen. ++: Contamination by the drug is remarkable and the leaves look white. Test Example 4 Commercially available inorganic copper agent [San Bordeaux (basic copper chloride 44%
(As copper), Sankei Chemical Co., Ltd.)] The phytotoxicity reducing agent of Example 1 was added to a predetermined concentration, and Example 4 was also diluted to a predetermined concentration and sprayed on Chinese cabbage three times at 7-day intervals. . The state of occurrence of chemical damage 14 days after the final application was judged according to the following investigation criteria. The results are shown in Table 5. The test was repeated twice. Criteria for investigation of phytotoxicity −: No phytotoxicity ±: Slight brown spots +: Clear brown spots ++: Brown spots coalesce and chlorosis spots are observed. +++: Marked chlorosis spots are noticeable and leaf withering symptoms are also seen.

[Table 1]

[Table 2]

[Table 3]

[Table 4]

[Table 5]

Claims (4)

[Claims] 1. A composition for reducing phytotoxicity of an inorganic copper agent, which comprises a phospholipid as an active ingredient. 2. Phospholipids 5 to 40 parts by weight, diluent 95 to
The composition of claim 1 which comprises 60 parts by weight. 3. A pesticidal composition with reduced phytotoxicity, which comprises a phospholipid and an inorganic copper agent as active ingredients. 4. A phospholipid in an amount of 5 to 25 parts by weight and an inorganic copper agent 95.
The composition according to claim 3, which comprises ˜75 parts by weight.