KR20020074903A - Agricultural chemicals composition and its use - Google Patents

Abstract

PURPOSE: A new agricultural chemical composition having excellent sterilizing and antibacterial effects on plant pathogenic bacteria causing plant diseases, such as an antibacterial fertilizer, crops protecting agent and plant spoilage preventing agent containing the composition is provided which has low toxicity and is environmentally safe. CONSTITUTION: The agricultural chemical composition contains a pharmaceutically effective concentration of an ammonium chloride compound of the formula:(R1R2R3)N-R4¬+Cl as an active component, wherein R1 is n-alkyl, R2 and R3 are methyl, R4 is benzyl or ethyl benzyl and the ammonium chloride compound of the formula is a mixture of n-alkyl dimethyl benzyl ammonium chloride and n-alkyl dimethyl ethylbenzyl ammonium chloride in a ratio of 1:1.

Description

Agricultural chemicals composition and its use

The present invention relates to a pesticide composition, and more particularly, to a new pesticide composition having excellent antiseptic and antimicrobial effects against phytopathogens causing diseases of crops, and low toxicity and environmentally friendly, and antimicrobial fertilizers, crop protection agents, and plant decay thereof. It relates to an inhibitor.

Conventionally, ammonium chloride compounds of formula 1 have been developed and used as hard surface cleaners.

Formula 1

Wherein R ₁ is n-alkyl, R ₂ and R ₃ are methyl, R ₄ is benzyl or ethylbenzyl.

For example, Korean Patent Publication No. 1995-018420 relates to a sanitary detergent composition, wherein the composition contains BTC 2125M 0.5-5 containing n-alkyl dimethyl benzyl ammonium chloride and n-alkyl dimethyl ethylbenzyl ammonium chloride of the formula (1). Wt%, sodium lauryl sulfate 3-8 wt%, cocamide DEA 5-10 wt%, loramide DEA 1-2 wt%, soda ash 1-5 wt%, polyethylene alkyl ether 3-8 wt%, disodium 0.01-0.1 wt% ethylenediamine tetraacetate and 61.9-86.49 wt% water.

The present inventors have excellent antibacterial and bactericidal effects on pathogens that cause crop diseases without adversely affecting crops or the surrounding environment when applied to crops in the course of studying new uses of the ammonium chloride compounds of formula 1, which are low toxicity and low pollutants. I found that it gives an effect.

Therefore, an object of the present invention is to provide a novel pesticide composition excellent in the bactericidal and antimicrobial effects against phytopathogens causing diseases of crops, and low toxicity and environmentally friendly, and antimicrobial fertilizers, crop protection agents, and plant decay inhibitors containing the same.

According to the present invention to achieve the above object, there is provided a pesticide composition characterized in that it contains an ammonium chloride compound of formula (1) as a pesticide active ingredient in a pharmaceutically effective concentration.

Hereinafter, the present invention will be described in more detail.

The pesticide composition of the present invention is characterized in that it contains the compound of formula 1 in a pharmaceutically effective concentration.

The compound of formula 1 does not combine with cationic, anionic and organic materials due to precise alkyl placement and safety, so the effect is long after use and the sterilization ability against phytopathogens is not reduced even when used in hard water (CaCO ₃ 750ppm or more). Not only that, but it also has the advantages of being safe for crops and not polluting the surrounding environment. In addition, there is an ability to satisfy the crop pest control and pesticide residue cleaning effect at the same time because of the washing power.

Although not particularly limited, preferred examples of the compound of formula 1 include n-alkyl dimethyl benzyl ammonium chloride and n-alkyl dimethyl ethylbenzyl ammonium chloride. In particular, the compound of formula 1 is preferably contained in the pesticide composition of the present invention in a 1: 1 mixture of n-alkyl dimethyl benzyl ammonium chloride and n-alkyl dimethyl ethylbenzyl ammonium chloride.

In addition to the compound of Formula 1, the composition may include a solvent, fertilizer, and other conventional additives.

When the composition is used in combination with fertilizers, the fertilizer effect can be increased, and it is useful as a crop protection agent because of its excellent antimicrobial activity, and it is also useful as a medicament to prevent corruption in the long-term storage of harvested vegetables and fruits. Do.

Features and other advantages of the present invention as described above will become more apparent from the following examples.

Example 1

After mixing at a ratio of 40% by weight of n-alkyl dimethyl benzyl ammonium chloride, 40% by weight of n-alkyl dimethyl ethylbenzyl ammonium chloride, 10% by weight of ethanol and 10% by weight of water, the obtained mixture was diluted with water at various concentrations. A pesticide composition was prepared.

The bactericidal effect against plant disease pathogens was tested using the obtained pesticide composition. The experimental results are shown in Tables 1, 2 and 3. Table 1 shows the fungal effect on Rhizoctonia solant AG2 2 (IV), a cause of grass patch spread, and Table 2 shows Phytophthora capsici Leoni, a plant pest pathogen. Phytophthora capsici Leonian shows the results of experiments on various crops at different farms. Table 3 shows the different crops at different farms against Sphaerotheca pamnosa (Wallroth) Lveil. Experimental results are shown.

division Dilution factor of pesticide composition 200 500 1000 sensibility + + -

* Note) If the sensitivity is positive, it means that the growth of mold is suppressed at the corresponding concentration. If the sensitivity is-, it means that the development of mold is not inhibited at the concentration.

Name of test crop Farm Dilution factor of the composition Processing result pepper Nammyeon, Yeongwol-gun, Gangwon-do South Korea 250 The disease worsens after one-time irrigation directly in the soil. After five days of re-infusion, the disease is completely healed and revives. pepper Yeongwol-eup, Yeongwol-gun, Gangwon-do 250 Same as above pepper Chungbuk gold mask 300 Same as above cucumber Cheongwon-gun, Chungbuk 200 Eliminates all of the plagues found in the soil at the time of transplantation. Cherry tomato Huangshan-ri, Nonsan-si, Chungnam 300 Complete resuscitation within 5 days after one irrigation

Name of test crop Farm Dilution factor of the composition Processing result cucumber Cheongwon-gun, Chungbuk 250 100% effective at early stage. Effective 80-90% at maturity. 100% effect on redistribution. rose Jincheon-gun, Chungbuk 250 A few minutes after spraying, you can check the control effect.

[Examples 2 to 4]

A mixture of 40% by weight of n-alkyl dimethyl benzyl ammonium chloride, 40% by weight of n-alkyl dimethyl ethylbenzyl ammonium chloride, 10% by weight of ethanol and 10% by weight of water (hereinafter referred to as "MX-1") is nitrogen, potassium Mixed with water-soluble copper, soda ash, citric acid and the like and diluted with water to prepare a composition as shown in Table 4.

division Composition (weight ratio) Example 2 Example 3 Example 4 MX-1 4.5 4.5 4.5 4.5 4.0 nitrogen 0.2 0.2 - - - potassium 0.6 0.6 - - - Water soluble copper 0.2 0.2 - - - Soda ash 4 4 - Citric acid 20 Dilution factor 700-fold dilution 1200-fold dilution 200-fold dilution 700-fold dilution 700-fold dilution

Each of the compositions of Examples 2 to 4 was prepared by diluting in a potato agar incubator. Here, the inoculation of the test pathogens were incubated at 28 ° C. incubator for 3 days, and the growth of the mycelia was measured to evaluate the antibacterial activity. The common pathogens used were Rhizoctoria solani AG2-2, Brownpatch pathogen ( Rhizoctoria solani AG1-1), Pythium aphanidermatum , Sclerotinia homoeocarpa , and Anthrax pathogen ( Colletotrichum graninicola ) It was. In addition, the antimicrobial activity was calculated by calculating as follows.

Antibacterial Activity (%) = (a-b) ÷ a × 100

Here, a means mycelial growth of an untreated group and b means mycelial growth of a treated group.

Treatment pathogen Example 2 No treatment 700 times 1200 times Mycelial growth (mm) Antibacterial Activity (%) Mycelial growth (mm) Antibacterial Activity (%) Mycelial growth (mm) Large Patch 15 57.1 17 51.4 35 Brown Patch 15 62.5 25 37.5 40 Fishium Blight 0 100 0 100 40 Dallas Spot 7 82.5 7 82.5 40 anthrax 0 100 0 60.0 20

As can be seen from the results of Table 5, the composition of Example 2 showed high antimicrobial activity of 100% against fishium pathogens and anthrax pathogens when treated with 700-fold, and 82.5% antimicrobial activity to Dallas Spot pathogens. Large patch and brown patch pathogens showed slightly lower antibacterial activity of 57.1% and 62.5%, respectively. In addition, the 1200-fold treatment showed 100% of pisium blight pathogens and 82.5% of Dallas spot pathogens, and low antimicrobial activity against other pathogens. Therefore, it is determined that it can be applied to fishium blight, dallas spot, anthrax at a concentration of 700 times when applied to the control.

Treatment pathogen Example 3 No treatment 200 times 700 times Mycelial growth (mm) Antibacterial Activity (%) Mycelial growth (mm) Antibacterial Activity (%) Mycelial growth (mm) Large Patch 7 80.0 15 57.1 35 Brown Patch 9 77.5 24 40.0 40 Fishium Blight 0 100 0 100 40 Dallas Spot 4 90.0 8 80.0 40 anthrax 0 100 0 100 20

As can be seen from the results of Table 6, the composition of Example 3 showed a high antimicrobial activity of at least about 80% to all the test pathogens upon 200-fold treatment. When the 700-fold treatment showed more than 80% of the antimicrobial activity against pisium blight, Dallas spot, anthrax pathogen, and other low than the other pathogens. When applied to the control, 200-fold treatment is likely to be possible.

Treatment pathogen Example 4 No treatment 700 times Mycelial growth (mm) Antibacterial Activity (%) Mycelial growth (mm) Large Patch 13 62.9 35 Brown Patch 20 50.0 40 Fishium Blight 0 100 40 Dallas Spot 15 62.5 40 anthrax 8 60.0 20

As can be seen from the results of Table 7, the composition of Example 4 showed an antimicrobial effect of 100% against pisium blight pathogens when treated with 700-fold liquid, and showed low antimicrobial activity to other test pathogens.

As will be apparent from the above experimental results, the pesticide composition containing the compound of formula (1) has the advantages of excellent sterilization and antimicrobial effect against crop pathogens even at low concentrations and environmentally safe.

Claims (5)

A pesticide composition comprising the ammonium chloride compound of formula 1 as a pesticide active ingredient in a pharmaceutically effective concentration: Formula 1 Wherein R ₁ is n-alkyl, R ₂ and R ₃ are methyl, R ₄ is benzyl or ethylbenzyl. The pesticide composition according to claim 1, wherein the ammonium chloride compound of formula 1 is a 1: 1 mixture of n-alkyl dimethyl benzyl ammonium chloride and n-alkyl dimethyl ethylbenzyl ammonium chloride. An antimicrobial fertilizer containing the pesticide composition according to claim 1 or 2. Crop protection agent containing the pesticide composition of Claim 1 or 2. Plant anti-corrosive agent containing the pesticide composition according to claim 1 or 2.