JPH06197676A - Water-soluble herbicidal sheet - Google Patents

Abstract

PURPOSE:To selectively kill down only weeds difficult to spray a herbicide through a sprayer, e.g. weeds growing on the planting surface of a planting pot or weeds growing among flowers or vegetables by supplying a sheet-shaped herbicide capable of migrating to the forage. CONSTITUTION:A readily water-soluble paper such as tissue paper or toilet paper or a water-soluble sheet formed from dextrin, starch glue, etc., is impregnated with a herbicidal chemical capable of migrating to forage or the herbicidal chemical is bonded to the paper or sheet. This paper is subsequently subjected to finishing treatment so as to make cut paper or roll-shaped paper. A pressure- sensitive adhesive layer (2) or many cuts (4) are made on the back surface thereof as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to a foliar treatment transfer type herbicide which is formed into a sheet for weeds which are difficult to use with a sprayer and which grow on the planting surface of a flowerpot or between weeds such as flowers and vegetables. The purpose is to selectively kill only weeds.

[0002]

2. Description of the Related Art Conventionally, when using a non-selective foliar treatment transfer type herbicide for weeds between flowers and vegetables, it is not possible to spray the chemicals all at once with a sprayer. The solution was made to be considerably thicker than the dilution used in the above case and applied to the foliage of the target weed with a dedicated applicator.

[0003]

This method was preceded by a very troublesome feeling and was rarely actually carried out. However, removing weeds without using a herbicide is considerably troublesome when weeding a pot. For example, if you have thick roots in the soil, such as oxalis that grows well on the planting surface of pots, even if you pull the foliage that is visible on the ground, it will not come out to the roots, and even if you remove it. Even if you take it, the trouble that it will grow again,
Every gardener has one. This also applies to weeds that grow between flowers, vegetables, etc.
The method of solving the non-selective foliar treatment transfer type herbicide by forming a sheet was studied.

[0004]

The present invention provides a water-soluble sheet such as tissue paper or toilet paper, or a water-soluble sheet formed of starch paste or the like (hereinafter, both are referred to as water-soluble sheet). That is, the water-soluble sheet, a foliar treatment transfer type herbicidal agent, for example, glyphosate (N- <phosphonomethyl> isopropylamine salt of glycine) is mixed or impregnated, or after further drying, finished into a cutting paper or roll paper, The water-soluble weeding sheet (1) is used.

[0005]

As described above, the water-soluble herbicidal sheet (1) according to the present invention contains a foliar-treated and migrating herbicidal agent in the water-soluble sheet. It can be made into two types, a dry type that is dried after adding. Therefore, in its use, in the case of the wet type, just cut and put the water-soluble weeding sheet according to the present invention on the grass to be killed, and in the case of the dry type, sprinkle water on the target leaves. In either case, the impregnated drug, that is, the foliar-processed transferable herbicidal drug, is transferred to the foliage surface of the target grass by placing it on the surface or lightly watering it after mounting. .

[0006] This is almost the same as those conventionally applied to the leaf surface individually, and the foliar treatment transferable herbicide contained in the water-soluble herbicidal sheet (1) is a leaf. The surface gradually moves to roots, eventually leading to the death of the grass itself, and exerting a herbicidal effect.

[0006]

EXAMPLE A first example of the present invention is to form a toilet paper-like easily water-soluble paper by a conventional process, and then impregnate the foliar-transferable herbicidal agent in the form of an aqueous solution by spraying or the like. According to the manufacturing process of paper, which is referred to as colored paper, etc., an appropriate amount of foliar-processed transferable herbicidal agent is supplied and mixed into a papermaking stock solution, sprayed on a net and then compressed, and then wet type or dry type. The desired water-soluble herbicidal sheet (1) is constituted by performing a drying treatment if necessary according to the finishing of the above. Depending on the foliar-transferring herbicide, it can be used in the same manner even if it is applied in the form of powder or fine particles.

The second embodiment below is a water-soluble herbicidal sheet (1) in which an aqueous viscous liquid obtained by mixing a herbicide for foliar-transfer treatment into a molding agent such as dextrin or starch paste is dried and formed into a film. ). The molding agent may be any other one as long as it is water-soluble and does not impair plant growth, and a fertilizer component may be added. In the case of this embodiment, since it is completely water-soluble, there is an advantage that no fiber residue is generated after use. In the case of this embodiment as well, a water-soluble sheet composed of starch paste or the like may be prepared, and then a powdery or fine stalk exfoliating migration herbicide may be applied.

In the third embodiment, an adhesive layer (2) is provided on the back surface of these water-soluble herbicidal sheets (1) in the form of lines, dots or nets, and the release paper (3) is covered. In use, after peeling the release paper (3) and lightly adhering it to the surface of the weeds to be killed with this adhesive layer (2), the water-soluble weeding sheet (1) and the weeds leaves are removed. The contact is more reliable, and the foliar treatment transfer type herbicide eluted from the water-soluble herbicidal sheet (1) by irrigation flows out from the gap of the adhesive layer (2) to the surface of the weeds and begins to exert its effect. .

[0008]

Industrial Applicability As described above, the present invention is a sheet-type transferable herbicide for foliar treatment, which is widely used at present, and is formed into a sheet in the form of a water-soluble film. Or by applying water after placement, the foliar treatment transfer type herbicide elutes and spreads on the leaf surface, and as with spraying or application, the foliar treatment transfer type herbicide is applied to the leaf surface. Can be supplied. Therefore, there is no spray of chemicals at the time of use, and no damage occurs to plantings other than the placed weeds. Also, it is convenient for the user, especially for the dry type, even if it is used as it is with bare hands, there is no fear of chemical damage. Also, regarding wet type, it is extremely safe to use gloves while paying attention only to the fingertips that come into contact with the gloves, because the expected phytotoxicity of the foliar treatment transfer type herbicide can be eliminated.

[0008] Next, since it can be appropriately cut into pieces according to the target plant to be killed, it can be used as a weed at the root of a cultivated planted in a flower pot which could not be sprayed with a herbicide. On the other hand, it is possible to respond easily on the spot. Then, conventionally, an aqueous solution of a foliar treatment transfer type herbicide was individually applied using a dedicated applicator, whereas in the case of this water-soluble herbicidal sheet (1), weeds growing on the pot surface Depending on the situation, simply cut the paper and place it so that it touches the leaf surface etc. lightly from above. In this case, the type in which the adhesive layer (2) is provided on the back surface has the effect of further facilitating the close contact.

Further, as variously shown in FIG. 1, it can be prepared by freely forming a square / circular shape or a roll shape, and further, for example, narrow band-like cuts (4) at intervals of several millimeters. It can be placed appropriately and can be placed flexibly in accordance with various shapes and the growth of weeds, and the use thereof can be further simplified. Therefore, the water-soluble herbicidal sheet (1) according to the present invention is mainly intended to remove relatively short weeds in pots and the like.
It can also be used for weeds between flowers and shrubs, and when weeds in the garden are not growing too much, we can spread the rolled ones and place them on it, so we can expect the weeding effect.
The use in general households that do not have a sprayer will also expand in the future.

As described above, the water-soluble herbicidal sheet (1) according to the present invention breaks the conventional wisdom of conventional herbicide spraying, does not require the use of a sprayer, and has a troublesome odor of application using a special tool. Not really. And it looks like tissue paper, toilet paper, or wet paper that can be easily used, no chemical damage to users is expected, and management is easy, so especially for gardeners and households. I think that the use of can be greatly expected.

[Brief description of drawings]

FIG. 1 is a perspective view of each example of an embodiment of the present invention.

[Explanation of symbols]

 1 is a water-soluble weeding sheet 2 is an adhesive layer 3 is release paper 4 is a break

Claims (2)

[Claims] 1. A water-soluble herbicidal sheet, which is a water-soluble sheet formed by mixing or adhering a foliar-absorptive herbicidal agent. 2. The water-soluble herbicidal sheet according to claim 1, wherein an adhesive layer having partial dots, lines, nets or the like is provided on the back surface of the water-soluble sheet.