JP2008024629A - Fruit coloring promoter of fruit tree and method for promoting coloring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fruit coloring promoter of a fruit tree, satisfactory in effective/economical faces without giving bad effects such as chemical injury to the fruit tree, and a method for promoting the coloring. <P>SOLUTION: The fruit coloring promoter of the fruit tree contains isoprothiolane as an active ingredient. The method for promoting the coloring of the fruit of the fruit tree involves treating the fruit tree, stems and leaves, the fruits or fruit bunches with the fruit coloring promoter by direct spraying, soaking or soil treatment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fruit color accelerator and a method for promoting coloration of fruit trees containing isoprothiolane as an active ingredient.

  Conventionally, an apple or persimmon fruit coloring accelerator and a fruit coloring promoting method using a choline salt and mecoprop or diclocrop are known (see, for example, Patent Document 1 or 2). In addition, a method for promoting fruit coloring of fruit trees is known, in which a mixture of water-soluble carotene, nucleic acid, auxin and the like is irrigated or sprayed onto the roots of fruit trees (see, for example, Patent Document 3). On the other hand, isoprothiolane is a compound widely known as a blast control agent. In addition to the blast control activity, the number of leaves, plant length elongation, stem enlargement, and root development (activation of rooting, It is known that there are plant growth regulating effects such as increase in elongation amount, early rooting time), increased plant vitality, and decreased lower leaf withering (see, for example, Patent Document 4). However, there is no description or suggestion about the fruit coloring promotion effect of isoprothiolane fruit trees.

JP-A-6-219910 JP-A-5-85906 JP-A-6-125655 JP-A-1-272504

  Fruit coloring of fruit trees has led to improvements in commercial value such as appearance, taste and nutritional value, and it has been a long-standing demand for producers how to control coloring of fruits. The above prior art methods are not always satisfactory in terms of effect and economy, and fruit color accelerators and methods for promoting coloration of fruit trees that are satisfactory in terms of effect and economy have been demanded. In addition, the above mecoprops and dicrocrops are compounds widely known as herbicides, and there is a risk of causing phytotoxicity to fruit trees themselves if the amount used is incorrect.

  As a result of intensive research to solve the above problems, the present inventors have found that isoprothiolane, a compound widely known as a rice blast control agent, has no adverse effects such as phytotoxicity on fruit trees, and is effective and economical. The present invention has been completed by finding that it has an effect of promoting fruit coloring of satisfactory fruit trees.

That is, the present invention
(1) a fruit coloring promoter for fruit trees containing isoprothiolane as an active ingredient,
(2) The fruit coloring promoter according to (1), wherein the fruit tree is a deciduous fruit tree or an evergreen fruit tree,
(3) The fruit coloring promoter according to (1), wherein the fruit trees are apples, cherry peaches, oysters, grapes, strawberries, blueberries, citrus fruits,
(4) A method for promoting fruit coloring of fruit trees, characterized in that the fruit coloring promoter according to (1) to (3) is directly sprayed on fruit trees, foliage, fruits or fruit bunches,
(5) A method for promoting fruit coloring of fruit trees characterized by immersing the fruit or fruit bunches in the fruit coloring promoter according to (1) to (3) or a diluted solution thereof,
(6) The present invention relates to a method for promoting fruit coloring of fruit trees, wherein the fruit coloring accelerator according to (1) to (3) is treated on soil.

  The present invention provides a fruit coloring accelerator and a coloring promotion method for fruit trees that are satisfactory in terms of effect and economy without adversely affecting the fruit trees such as phytotoxicity.

  Isoprothiolane, which is an active ingredient of the fruit coloring promoter of fruit trees of the present invention, is publicly known literature (for example, The Pesticide Manual manual Edition 2003), Shibuya Narumi, et al., “SHIBUYA INDEX”. -2005-10th Edition ", SHIBUYA INDEX study group, etc.).

The compounding ratio of the active ingredient in the fruit coloring accelerator of the fruit tree of the present invention is 0.01 to 30 parts by weight, preferably 0.1 to 10 parts by weight, with respect to 100 parts by weight of the fruit coloring accelerator. The ratio of parts.
The fruit coloring promoter for fruit trees of the present invention is generally used after being formulated into a convenient shape according to a conventional method for agricultural chemical formulations. That is, the active ingredient is mixed with an appropriate inert carrier or, if necessary, together with an auxiliary agent in an appropriate ratio to be dissolved, separated, suspended, mixed, impregnated, adsorbed or adhered to an appropriate dosage form, For example, it may be used after being formulated into a suspension, emulsion, liquid, wettable powder, wettable granule, granule, powder, tablet, pack, microcapsule and the like.

  The inert carrier that can be used in the present invention may be either solid or liquid. Examples of materials that can be used as a solid carrier include soybean flour, cereal flour, wood flour, bark flour, saw flour, and tobacco stem flour. , Walnut shell powder, bran, fiber powder, residues after extraction of plant extracts, synthetic polymers such as ground synthetic resin, clays (eg kaolin, bentonite, acid clay), talc (eg talc, pyrophyllite, etc.), Silicas (for example, diatomaceous earth, quartz sand, mica, white carbon (some synthetic high-dispersed silicic acid, also called hydrous fine silicon, hydrous silicic acid, and some products contain calcium silicate as a main component)}, activated carbon, sulfur powder, pumice, Firing diatomaceous earth, brick ground, fly ash, sand, calcium carbonate, calcium phosphate and other inorganic mineral powders, polyethylene, polypropylene, polychlorinated Plastic carriers such as vinylidene, ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, fertilizer salts depreciation etc., can be exemplified compost or the like, which are used alone or in the form of a mixture of two or more.

  The material that can be used as a liquid carrier is selected from those having solvent ability itself, and those that can disperse an active ingredient compound with the aid of an auxiliary agent without having solvent ability. Examples of the carriers listed above are used alone or in the form of a mixture of two or more thereof, for example, water, alcohols (eg, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.), ketones (eg, acetone, Methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (eg, diethyl ether, dioxane, cellosolve, dipropyl ether, tetrahydrofuran, etc.), aliphatic hydrocarbons (eg, kerosene, mineral oil, etc.), aromatic hydrocarbons (E.g. benzene, toluene, Silene, solvent naphtha, alkylnaphthalene, etc.), halogenated hydrocarbons (eg, dichloroethane, chloroform, carbon tetrachloride, chlorobenzene, etc.), esters (eg, ethyl acetate, diisopropylpropyl phthalate, dibutyl phthalate, dioctyl phthalate, etc.) ), Amides (eg, dimethylformamide, diethylformamide, dimethylacetamide, etc.), nitriles (eg, acetonitrile, etc.), dimethyl sulfoxides, and the like.

  As other adjuvants, the following typical adjuvants can be mentioned, and these adjuvants are used depending on the purpose and are used alone, or in some cases, two or more kinds of adjuvants are used together. In some cases it is possible to use no adjuvants at all.

Surfactants are used for the purpose of emulsifying, dispersing, solubilizing and / or wetting of the active ingredient compound, such as polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene higher fatty acid ester, polyoxyethylene. Examples include surfactants such as resin acid esters, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, alkylaryl sulfonates, naphthalene sulfonic acid condensates, lignin sulfonates, and higher alcohol sulfates. it can.
For the purpose of stabilizing the dispersion, sticking and / or binding of the active ingredient compound, for example, casein, gelatin, starch, methylcellulose, carboxymethylcellulose, gum arabic, polyvinyl alcohol, pine oil, coconut oil, bentonite, lignin sulfonate It is also possible to use auxiliary agents such as

  In order to improve the fluidity of solid products, for example, auxiliary agents such as waxes, stearates and alkyl phosphates can be used. As a peptizer for the suspension product, for example, auxiliary agents such as naphthalenesulfonic acid condensate and condensed phosphate can be used. As the antifoaming agent, for example, an auxiliary agent such as silicone oil can be used. As a preservative, 1,2-benzisothiazolin-3-one, parachlorometaxylenol, butyl paraoxybenzoate and the like can be added. Furthermore, functional spreading agents, activity enhancers such as metabolic degradation inhibitors such as piperonyl butoxide, antifreezing agents such as propylene glycol, antioxidants such as BHT, UV absorbers and other additives as necessary Agents can also be added.

  When using the fruit coloring promoter of the fruit tree of the present invention, the effective amount for promoting the coloring of the fruit in the form of the above preparation as it is or appropriately diluted or suspended with water or the like is added to the target fruit tree or fruit. It can be used, for example, it can be directly sprayed or immersed in fruit trees, foliage, fruits, fruit bunches, etc., treated on the root stock of fruit trees and absorbed from the roots. In the case of direct spraying or dipping onto fruit trees, foliage, fruits, fruit bunches, etc., it is preferable to use emulsions, wettable powders, liquids, flowables, etc. with appropriate dilution with water. Although it varies depending on the mixing ratio, weather conditions, formulation form, application method, type of target fruit tree, etc., it is in the range of 0.01 to 10000 ppm, preferably in the range of 10 to 5000 ppm. When treating fruit tree stocks, etc., it is preferable to treat granules, powders, flowables, etc. directly to the soil, and the application amount is the mixing ratio of active ingredients, weather conditions, formulation form, application method, target fruit tree The amount of active ingredient per 10 ares is usually in the range of 1 to 1000 g, preferably in the range of 10 to 500 g.

  The processing time of the fruit coloring accelerator of the fruit tree of the present invention varies depending on the type of active ingredient, weather conditions, formulation, application method, target fruit tree, etc., for example, in the case of apples, 120 days before harvesting 15 days before is preferable, and 90 days to 20 days before harvesting is particularly preferable. In the case of grapes, it is preferably 120 days to 20 days before, particularly preferably 90 days to 30 days before harvest. In the case of oysters, it is preferably 120 days to 15 days before harvesting, particularly preferably 90 days to 20 days before harvesting. In the case of citrus, it is preferably 120 days to 20 days before, particularly preferably 90 days to 30 days before harvest.

  Fruit trees or fruits that can use the fruit coloring promoter of the fruit tree of the present invention include apples, peaches, plums, cherry peaches, persimmons, none, grapes, strawberries, blueberries, raspberries, deciduous fruit trees, loquats, citrus fruits (mandarin oranges, Hassaku, Kankan, Orange, etc.) evergreen fruit trees, tropical fruit trees such as papaya, mango, feijoa, guava, pineapple, passion fruit, etc., and are preferably deciduous fruit trees or evergreen fruit trees from the viewpoint of effects, and more preferably apples Cherry peaches, oysters, grapes, strawberries, blueberries, citrus. In use, it can also be used by mixing with a spreading agent, fertilizer, fungicide, insecticide and the like.

Next, the content of the present invention will be described in more detail with reference to formulation examples and test examples of fruit coloring accelerators for fruit trees of the present invention, but the present invention is not limited to these.
Formulation Example 1
Isoprothiolane 10 parts Xylene 70 parts N-methylpyrrolidone 10 parts Mixture of polyoxyethylene nonylphenyl ether and calcium alkylbenzenesulfonate 10 parts The above is uniformly mixed and dissolved to prepare an emulsion.
Formulation Example 2
Isoprothiolane 5 parts Bentonite and clay mixed powder 90 parts Calcium lignin sulfonate 5 parts The above is uniformly mixed, kneaded with an appropriate amount of water, granulated and dried to form granules.
Formulation Example 3
Isoprothiolane 20 parts Kaolin, synthetic highly dispersed silicic acid 75 parts Mixture of polyoxyethylene nonylphenyl ether and calcium alkylbenzenesulfonate 5 parts The above mixture is uniformly mixed and ground to obtain a wettable powder.

Test example. Test for promoting coloration effect on grapes Isoprothiolane emulsion was diluted to 3 ppm, and after 10 days of flowering of grapes (variety: Delaware), fruit bunches were immersed in the diluted solution. After harvesting 60 days after the treatment, the degree of coloration of the entire fruit tress was determined by naked eye comparison with the untreated section according to the following criteria. The results are shown in Table 1.

Judgment criteria: + dark color with no treatment, ± equivalent with no treatment

５ロット中４ロットで明らかに着色促進効果が認められ、イソプロチオランが果樹類の果実着色促進剤として有効であることがわかる。

A clear color promoting effect was observed in 4 out of 5 lots, indicating that isoprothiolane is effective as a fruit color accelerator for fruit trees.

Claims (6)

  A fruit coloring promoter for fruit trees containing isoprothiolane as an active ingredient.   The fruit coloring promoter according to claim 1, wherein the fruit tree is a deciduous fruit tree or an evergreen fruit tree.   The fruit coloring promoter according to claim 1, wherein the fruit trees are apples, cherry peaches, oysters, grapes, strawberries, blueberries, citrus fruits.   A method for promoting fruit coloring of fruit trees, wherein the fruit coloring promoter according to claim 1 is sprayed directly onto fruit trees, foliage, fruits or fruit bunches.   A method for promoting fruit coloring of fruit trees, comprising immersing fruits or fruit bunches in the fruit coloring accelerator according to claim 1 or 3 or a diluted solution thereof.   A method for promoting fruit coloring of fruit trees, wherein the fruit coloring promoter according to claim 1 is treated on soil.