JPS606149A - Scattering method of agricultural and horticultural chemicals - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Conventionally, so-called aerosol products have been commercially available that spray insecticides and fungicides into the gas generated from liquefied gas for horticulture, but these products are sprayed together with the chemicals at the time of spraying the chemicals. The liquefied gas used as an agent also ejects in the form of fine particles while remaining in liquid form, so if the injection is performed near the plant, part of it will evaporate in the space around the plant, and part of it will remain in liquid form. It adheres to plants as fine particles and then evaporates there. As a result, the space around the plant and the plant itself are deprived of the heat of evaporation, resulting in a significant drop in temperature, and the plant often suffers frost damage. Particularly in indoor gardening, pests are likely to occur on the new shoots of plants such as Saintpaulia and Shiningia, which have poor cold resistance, but since these parts are also particularly poor in cold resistance, spraying these chemicals often causes them to wither or become malformed. This type of accident continues to occur at garden centers.

The present invention provides a simple method for spraying agricultural and horticultural chemicals that is free from the risk of such frost damage to plants and is easy to use in home gardening. When spraying a chemical to plants, the liquefied gas stored in a pressure-resistant container is vaporized in the pressure-resistant container, and the 9A horticultural chemicals stored in the chemical container are sucked into the ejected gas. This is a method of dispersing agricultural and horticultural chemicals, which is characterized by spraying them onto plants.

According to the method of the present invention, the substances ejected are only the gas generated by vaporizing the liquefied gas and the fine particles of the liquid agricultural and horticultural chemicals to be sprayed, and there is no liquefied gas propellant as in conventional aerosol products. It does not contain any gasified particles. Therefore, even if this spray is sprayed very close to the plant, no heat of vaporization will be taken away from the space around the plant or the plant itself, and there is no risk of frost damage to the plant due to spraying.

In the aerosol spray device used in the present invention, one end of the vent pipe opens at a position that does not reach the liquid level of the liquefied gas in a pressure-resistant container that stores the liquefied gas, and the other end of the vent pipe opens at a position that does not reach the liquid level of the liquefied gas in a pressure-resistant container that stores the liquefied gas. It is possible to use a container that has an opening that is guided outside and that uses the suction force of the ejected gas flow to suck the agricultural and horticultural chemicals 7 in the container and spray them. 56-46850 can be used. The introduction pipe that introduces the agricultural and horticultural chemicals in the chemical container to the gas stream to be ejected has one end below the level of the agricultural and horticultural chemicals in the chemical container and the other end that normally stores the agricultural and horticultural chemicals. It opens in contact with the flow of gas ejected from the outside of the drug container. The opening at one end of the inlet tube, which opens in contact with the flow of the ejected gas, can be modified in various ways. It may be enclosed and open;
The opening may be surrounded by the opening of the ventilation pipe, or the openings of both the ventilation pipe and the inlet pipe may be close together and at approximately right angles, as in household inhalers or simple household atomizers. It may be arranged so that It goes without saying that normal functions such as adjusting the amount of ejected gas or stopping the ejected gas can be installed in the ventilation pipe.

In the present invention, if the pressure-resistant container for storing liquefied gas and the drug container are removable, it is possible to prepare several drug containers, fill them with different drugs, and use them as needed. You can easily use different drugs. Furthermore, even if there is only one drug container, various drugs can be used by changing the contents as needed.

The propellant used in the present invention is not particularly limited and may include, for example, LPG, dimethyl ether, or fluorocarbon gas, and for pressure-resistant containers, metal lead made from iron plates is usually used for construction and economical reasons. .

Agricultural and horticultural chemicals that can be sprayed by the method of the present invention include insecticides, acaricides, fungicides, etc., as well as foliar spray fertilizers. Alternatively, it is sprayed in various forms such as fine powder in the form of a culm.

Example 1 Topref 0M irrigation agent diluted with water by L500 times (7
0% Thiophanate Methyl Irrigation Agent: Nippon Soda Co., Ltd., a gardening fungicide) solution was placed in a chemical container, and liquefied gas (
A chemical liquid separation type aerosol spraying device was used in combination with a pressure-resistant container that used LPG) WAIJGO4UGI-4HAN#J14H as a propellant. The pressure container is made of tin, and the propellant is filled to about 9 mm inside the pressure container, and the upper part is empty (gas section), and a ventilation pipe is connected to the outside of the pressure container from the top of the empty part. When the inlet tube is guided out of the container from within the water surface of the drug solution and reaches the gas stream ejected from the ventilation tube, the ejected gas produces a mist of the drug. It had a structure that occurs. Early in the morning in the Kanto region in early April (temperature: 8°C), it was sprayed on the new shoots of the hybrid tea roses ``Yukisan'' and ``White ψ Christmas'' where the powdery mildew disease was about to appear. The plant was sprayed close to the diseased area at a distance of 3 crrL from the spray nozzle to the plant until the chemical solution dripped, but no frost damage occurred. Even after that, we were able to easily and effectively spray the powder in the morning and evening, and were able to prevent the spread of powdery mildew. This type of usage has been found to be particularly effective in that it can be easily applied to disease-infested areas without causing frost damage prior to general disinfection.

Example 2 Adjust the L500 times diluted solution of Kelsen ■ to Parino 1'/
Using the same chemical liquid separation type aerosol spraying device as in Example 1 (using water containing 3 water/water), mini Shiningia "White Sprypa" and "Saintpaulia" were sprayed.
In order to exterminate mites near the central buds of "True Roux", spraying was carried out at a distance of 1 to 5 cm from the nozzle to the plant body.No frost damage occurs, easy extermination is possible, and especially In the case of indoors, the spraying can be performed only on the areas where pests and diseases are occurring, without causing intensive frost damage, and the effectiveness of extermination without contaminating the indoor environment has been recognized.

Example 3 An aqueous solution in which urea was dissolved at a dilution rate of 1/50oO in a solution diluted to 500 times L of the Topgin wettable powder used in Example 1 was used using the same chemical liquid separation type aerosol spraying device as in Example 1. To control the sprouting power of young melon seedlings in a greenhouse, spraying was performed on the leaf surfaces of melon seedlings at a distance of 2 to 5 crn from the spray nozzle to the plants. It was possible to easily and effectively apply foliar fertilization and disinfection without causing frost damage.

Applicant: Shin Nisso Kako Co., Ltd. Agent Haruyuki Ito Yoshimi Yokoyama

Claims (1)

[Scope of Claims] 1. When spraying agricultural and horticultural chemicals to plants using liquefied gas as a propellant, a jet obtained by vaporizing liquefied gas stored in a pressure-resistant container in the pressure-resistant container. A method for dispersing agricultural and horticultural chemicals, which comprises using gas to suck up agricultural and horticultural chemicals stored in a chemical container and spraying them onto plants. 2. One end of the ventilation pipe is opened at a position that does not reach the liquid level of the liquefied gas in the pressure-resistant container, and the other end of the ventilation pipe is led outside the container and opened, and the other end is opened outside the container. 2. The method according to claim 1, wherein the agricultural and horticultural preparation is sprayed by a gas flow ejected from a vent pipe. 3. The method according to claim 1 or 2, wherein the pressure-resistant container for storing liquefied gas and the chemical container for storing agricultural and horticultural chemicals are mutually removable. 4. The method according to claim 1 or 2, wherein the pressure-resistant container is a golden cormorant anchor.