JPH0244281B2 - CHORUIKIHIZAI - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a bird repellent. For more details, the general formula: (In the formula, X represents an oxygen atom or a sulfur atom,
Hal represents a halogen atom, n is 0, 1 or 2
shows. ) and an organic phosphate ester represented by the formula: Bis(dimethylthiocarbamoyl) represented by
The present invention relates to a bird repellent characterized by containing disulfide as an active ingredient. The organic phosphate ester represented by the general formula () used in the present invention is
Publication No. 81807 describes that it is effective as a bird repellent. In addition, bis(dimethylthiocarbamoyl)disulfide used in the present invention [hereinafter,
TMTD] is known as a repellent for hares, voles, and other rodents. There are various factors that affect the yield of agricultural crops, but among them damage caused by birds is not insignificant, and most of the sown seeds are eaten, resulting in areas that are unable to be cultivated, and crops that are destroyed just before harvest. This has become a serious problem, resulting in a significant decline in revenue. For example, for legumes such as soybeans, red beans, and black beans, corn, wheat, buckwheat, and rice, turtle doves, wild pigeons, pigeons, crows, pheasants, starlings, sparrows,
Birds such as quail and chickens cause damage during the sowing, germination and fruiting stages. The organic phosphate ester of the general formula () is known to have a repellent effect on birds, but it does not show any repellent effect on rodents. TMTD is known to be highly effective against rodents, but its effectiveness against birds is unsatisfactory. The general formula ()
The organic phosphate ester of shows a repellent effect on birds, but its effect is still not fully satisfactory at the practical stage, so it is not put into practical use at present. There is a need for the development of repellents. As a result of repeated research to develop a better bird repellent that can practically prevent bird damage, the present inventors have discovered a composite agent containing both the organic phosphate ester of the general formula () and TMTD. , exerts a selective and cooperative synergistic repellent effect against birds at a lower dose than the effect of each component applied alone, and prevents feeding damage by birds to sown seeds. We discovered that it can be effectively prevented in practice. The composite bird repellent of the present invention has substantially improved effectiveness, and also has no adverse effect on the crops and seeds to which it is applied, as well as on their growth after application, and has no toxicity. It was also found that the toxicity to humans and livestock is extremely low, and that it can be used safely and effectively to prevent bird damage. Furthermore, it has been found that the composite bird repellent of the present invention has the effect of repelling both beneficial and harmful birds without causing death, and prevents damage to birds without harming birds. Therefore, the object of the present invention is to provide an excellent bird repellent capable of preventing bird damage without having a killing effect on birds, which is characterized by containing an organic phosphoric acid ester of the general formula () and TMTD as active ingredients. The aim is to provide drugs for Examples of the organic phosphoric acid ester of the general formula () used in the present invention include the following compounds, but are not limited thereto. As described above, the bird repellent of the present invention exhibits an excellent synergistic bird repellent effect at a dose lower than the normally used dose of each single agent, and can achieve a stable repellent effect against various birds. Furthermore, the present invention has many benefits such as increasing the germination rate of seeds and having the advantages of labor saving and economic efficiency, and the present invention greatly contributes to the advancement of agrochemical cultivation technology. When the mixed active compound of the present invention is used as a bird repellent, it can be used in various formulations using methods commonly used in the field of agricultural chemical production using agricultural chemical adjuvants. In actual use, these various preparations can be used directly or diluted with water to a desired concentration. Examples of pesticide adjuvants mentioned here include diluents (solvents, fillers, carriers), surfactants (solubilizers, emulsifiers, dispersants,
(wetting agents), stabilizers, and fixing agents. Examples of the form of the preparation include emulsions, oils, wettable powders, suspensions, powders, granules, powders, smoking agents, tablets, aerosols, pastes, capsules, and the like. The composite bird repellent of the present invention may contain from about 0.1 to about 95% by weight, preferably from about 0.5 to about 90% by weight of the mixed active ingredients. In practical use, the mixed active compound content in the various formulations and spray preparations described above will generally be from about 0.001 to about 80% by weight, preferably from about 0.05 to about 80% by weight.
A range of about 70% by weight is suitable. The content of these mixed active ingredients can be appropriately changed depending on the form of the preparation, the method of application, purpose, timing, location, and the situation of bird damage. In the case of seed dressing, the application amount of the hydrating agent per 1 kg of seeds is approximately 1:0.2 to 5 parts by weight of the organic phosphate ester of the general formula () and TMTD as their respective active ingredients. , preferably about 1:about
About 1 to about 20 g, preferably about 5 to about 20 g of mixed active compound mixed in a mixing ratio of 0.5 to 3 parts by weight
An example usage amount is 15g. In addition, in the case of spraying powder on the top soil of sowing surfaces or on germinated plants, the application amount per hectare is about 1 to about 10 kg, preferably about 1 to about 6 kg, of the mixed active compound at the above-mentioned mixing ratio. Can give examples of usage. However, in some cases it is possible to exceed or fall below these ranges. According to the present invention, the active ingredient contains a compound selected from organic phosphate esters represented by the general formula () and TMTD, and a diluent (solvent and/or filler and/or carrier).
Bird repellent compositions can be provided which contain and/or surfactants and, if necessary, e.g. stabilizers, adhesion agents, synergists. Furthermore, according to the present invention, a compound selected from the organic phosphoric esters of the general formula () and
TMTD and these together with diluents (solvents and/or fillers and/or carriers) and/or
or by applying an effective amount of a surfactant and, if necessary, a mixture with, e.g., a stabilizer, a fixing agent, or a synergist, to areas where birds fly or prey on birds; A method for repelling birds can be provided, which is characterized by coating the sowing surface with powder or spraying it on the sowing surface. EXAMPLES Next, the content of the present invention will be specifically explained with reference to Examples, but the present invention should not be limited thereto. Example 1 (Wettable powder) Compound number (1), 15 parts, TMTD, 35 parts, mixture of powdered diatomaceous earth and powdered clay (1:5), 45 parts,
Sodium alkylbenzenesulfonate, 2 parts,
Three parts of sodium alkylnaphthalene sulfonate formalin condensate were ground and mixed to prepare a wettable powder.
This is diluted with water and sprayed to coat the seeds. Example 2 (Powder) 3 parts of Compound No. (4), 3 parts of TMTD, and 94 parts of powdered clay were pulverized and mixed to prepare a powder. Test Example 1 Repellent Effect Test on Birds A repellent effect test was conducted in a field where birds such as Japanese brown pigeons and turtle doves regularly attack. Test method In a field where soybean seeds were sown, one furrow of 25
A total of 50 holes and two ridges were used as one test area, and the above-mentioned Example 1
Each prepared drug prepared in the same manner as above was sown with two coated seeds per hole, for a total of 100 seeds. The number of remaining plants in each plot was investigated 14 days after sowing. The test was conducted three times and the average value was determined. The bird prevention rate was calculated using the following formula. True bird damage prevention rate (%) = 100-A-B-
(100 - number of remaining plants in each area - A) / 100 - A - B x 100, where A = number of ungerminated plants in the untreated bird net area B = number of remaining plants in the untreated area. The results are shown in Table 1.

[Table] The present invention, which has been explained in detail in the detailed description of the invention, is specifically summarized as follows. (1) General formula: (In the formula, X represents an oxygen atom or a sulfur atom, Hal represents a halogen atom, and n represents 0, 1 or 2.) and bis(dimethylthiocarbamoyl) disulfide. A bird repellent characterized by containing as an active ingredient. (2) The organic phosphate ester derivative of the general formula () and bis(dimethylthiocarbamoyl) disulfide are mixed in 1:0.2 to 5 parts by weight, preferably,
1: the first containing in a ratio of 0.5 to 3 parts by weight
Bird repellent listed. (3) 0.1 to 95% by weight of the active ingredient, preferably
The bird repellent according to the above items 1 and 2, containing 0.5 to 90% by weight. (4) A mixed active compound of a compound selected from the organic phosphate esters of the general formula () and bis(dimethylthiocarbamoyl) disulfide, or a diluent (solvent and/or filler and/or carrier) and / or a mixture of a surfactant and, if necessary, a stabilizer, a fixing agent, a synergist, for example, in an effective amount to prevent birds from being applied to the area where birds fly or the prey of birds; Or, a bird repellent method characterized by coating the sowing surface with powder or spraying it on the sowing surface. (5) The method for repelling birds according to item 4 above, wherein the applied amount of the mixed active compound is 1 to 10 kg, preferably 1 to 6 kg per hectare. (6) The application rate of the mixed active compound formulation is 1 seed per seed.
5. The method for repelling birds according to item 4 above, wherein the amount is 1 to 20 g, preferably 5 to 15 g per kg.

Claims (1)

[Claims] 1. General formula: (In the formula, X represents an oxygen atom or a sulfur atom,
Hal represents a halogen atom, n is 0, 1 or 2
shows. ) A bird repellent characterized by containing an organic phosphoric acid ester represented by the following and bis(dimethylthiocarbamoyl) disulfide as active ingredients.