JPH0745364B2 - Fruit tree protection composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to novel fruit tree protection compositions.

Pests nest at the base of fruit trees such as cold-seasoned white birch, Benitoiya, rowan, and plums, mandarin oranges, peaches, pears, and Satsuki, and their branches and leaves are often damaged by silkworms. Is giving.

In such cases, the fruit tree is first affected by the disease microorganism,
Pests then attach to the affected areas, often resulting in fruit tree damage. Therefore, in order to effectively protect fruit trees, it is necessary to protect them from both disease microorganisms and pests.

Various methods have been devised to prevent such damage. However, all of the known methods are effective immediately after spraying or applying the drug, but the active ingredient in the drug flows out or scatters with the passage of time, and the efficacy is relatively short. It has disappeared and there is still nothing completely satisfying.

Therefore, the present inventors, as a result of repeated studies to develop a permanent fruit tree protecting agent without such drawbacks, 3,
The present inventors have found that a composition containing a 6-dichloropyridazine-larubene reaction product, a tobacco base and dodecylbenzenesulfonic acid as active ingredients is useful as a highly durable fruit tree protecting agent, and completed the present invention. That is, the present invention is a 3,6-dichloropyridazine-Larubene reaction product,
It is intended to provide a composition for protecting a fruit tree containing tobacco base and dodecylbenzene sulfonic acid as active ingredients and further containing a carrier for these ingredients from disease microbes and pests.

3,6-dichloropyridazyl-ral used in the composition of the present invention
Benzene reaction product (hereinafter referred to as RP) means 3,6-dichloro
Lopiridazine and Laruben (Doctor F Dazi
It is a product manufactured by Hi Co., Ltd. and sold by Yuka Sangyo Co., Ltd.
5-dimethylphenol as a main component),
Obtained by reacting in an aqueous solution of sodium hydroxide at room temperature
It means a reaction product (m.p. = 201 to 203 ° C.).

That is, this reaction product contains 3-chloro-6- (4-chloro-3,5-dimethylphenoxy) pyridazine as a main component.

Tobacco base contains nicotine (C ₁₀ H ₁₄ N ₂ ), nicotinamine (C ₁₀ H ₁₄ N ₂ ), nicotine (C ₁₀ H ₁₂ N ₂ ) and nicoterin (C ₁₀ H ₃ N ₂ ) as main components It is a mixture (sold by Nitatsu Corporation).

Further, the carrier used in the composition of the present invention, RP, tobacco base,
It carries dodecylbenzene sulfonic acid and other optional ingredients described below, and is used for facilitating the application or spraying of these ingredients directly or indirectly to trees. It is a thing. Therefore, it is possible to use all polymers, surfactants, solvents and the like that are commonly used in such fields.
In the composition of the present invention for coating, a polymer such as a water-absorbing acrylic resin [for example, 2-hydroxyethyl methacrylate resin commercially available under the trade name of DianaL LR] and isopropyl alcohol, isobutyl alcohol It is preferable to use a lower alcohol such as, etc. as a carrier.In addition, in the composition of the present invention for spraying, a polyether resin [for example, Pluronic L-64 (commercially available from Asahi Denka Kogyo Co., Ltd. under the trade name of poly ( It is preferable to use a nonionic surfactant such as oxypropylene) poly (oxyethylene) glycol] and water as the carrier.

Although the composition of the above-mentioned RP, tobacco base, dodecylbenzene sulfonic acid and a carrier can sufficiently achieve the object of the present invention, the composition of the present invention may further have a pest repellent effect and / or other It may contain various components having an action. Other components optionally added are preferably water-insoluble or insoluble bactericides, malodors, insect repellents, extenders, pigments and the like, and specific examples thereof include 6-chloro-2- [3′-chloro-pyridazinyl (6 ′)]-3-pyridazinone, 3-
Pyridazine derivatives such as chloro-6- [3'-chloro-pyridazinyloxy (6 ')] pyridazine, glutaraldehyde, thiophenol, chloroxylenol, glutaraldehyde bis- (diphenylmercaptal), o-phthalic Aldehyde bis- (diphenyl mercaptal) and other mercaptals, 3,3'-dipyridyl, sulfur, phthalic acid dimethyl ester, naphthalene,
Cyclohexanol, polystyrene sulfonic acid, thiophenol sulfonic acid, etc. are included.

All the various components constituting the composition according to the present invention are known substances, and commercially available products can be used, or they can be easily produced by known methods.

The composition of the present invention is produced by using a solvent as a polymer, a surfactant,
It can be carried out by appropriately adding RP, tobacco base, dodecylbenzene sulfonic acid and other components and uniformly mixing them. In another method, one or more kinds of polymer, surfactant, RP, tobacco base, dodecylbenzenesulfonic acid or other components are previously added to a part of the solvent to prepare a uniform solution, It can also be produced by combining these solutions and uniformly mixing them.

A preferred composition of the present invention has a ratio of RP / tobacco base / dodecylbenzenesulfonic acid of 1/1 to 3/3 to 8 (weight ratio).

The fruit tree protection composition according to the present invention, when it is for application, has a base of the tree (usually about 50 cm to 10 cm above ground).
It is preferable to apply the composition directly to the 0 cm portion) or to apply the composition to a suitable synthetic resin tape, for example, a polyether or polyester resin tape and wrap it around the base for use. When the composition of the present invention is for spraying, it is preferable to spray it directly onto the base or branches of trees.

When RP and dodecylbenzene sulfonic acid are mixed, they react to form a salt. This salt usually has a melting point of 300 ° C
The above compounds are extremely sparingly soluble and stable in water, and have a peculiar offensive odor and / or irritating odor of the pyridazine derivative which is harmful to the harmful insects of fruit trees. Further, the other components optionally added are insoluble or sparingly soluble in water, and since the composition has remarkable viscosity after the solvent is evaporated, the active ingredient in the composition is Rarely leaked or volatilized. Therefore,
By applying the composition of the present invention to fruit trees, it is possible to prevent pests from approaching and damaging the fruit trees for a long period of time.

Hereinafter, the present invention will be described in more detail with reference to Examples and Test Examples, but the present invention is not limited thereto.

The explanation of the terms used in the present embodiment will be given below.

PP: 6-chloro-2- [3'-chloro-pyridazinyl (6 ')]-3-pyridazinone and 3-chloro-6-
An approximately 1: 1 (weight ratio) mixture of [3'-chloro-pyridazinyloxy (6 ')] pyridazine.

Dodecylbenzenesulfonic acid (86%): A water-containing viscous mixture containing 86% by weight of dodecylbenzenesulfonic acid.

DIANAL LR-117 (40%): DIANAL LR-117
Butyl alcohol / xylene (1/1) containing 40% by weight
solution.

Glutaraldehyde (50%): 50 glutaraldehyde
Aqueous solution containing wt%.

Example 1 A fruit tree protective composition for application was prepared using the following components. Component Parts by weight RP 100 tobacco base 200 dodecylbenzenesulfonate (86%) 640 trade name: DIANAL LR-117 (40%) 3150 Isopropyl alcohol 4850 isobutyl alcohol 1340 trade name: DIANAL LR-117 in isopropyl alcohol (40
%) To give a homogeneous solution (Solution A). RP, tobacco base and dodecylbenzenesulfonic acid (86%) are added to isobutyl alcohol to make a homogeneous solution (solution B). Solution A and solution B were combined and mixed uniformly to obtain a fruit tree protection composition for application.

Example 2 A fruit tree protective composition for application was prepared using the following components. Ingredients Weight parts RP 100 PP 100 Thiophenol 55 Chloroxylenol 38 Glutaraldehyde (50%) 37 Tobacco base 200 Dimethyl phthalate 50 Dodecylbenzene sulfonic acid (86%) 640 Dianar LR-117 (40%) 3150 Isopropyl alcohol 4850 Isobutyl alcohol 1340 Add thiophenol, chloroxylenol and glutaraldehyde (50%) to a part of isopropyl alcohol to make a uniform solution (solution A). Dianal LR-117 (40%) is added to the rest of isopropyl alcohol to make a uniform solution (solution B). R in isobutyl alcohol
P, PP, tobacco base, dimethyl phthalate and dodecylbenzene sulfonic acid (86%) are added to make a homogeneous solution (solution C). Solutions A, B, and C were combined and mixed uniformly to obtain a fruit tree protection composition for application.

Example 3 A fruit tree protective composition for application was prepared using the following components. Component Weight Parts RP 100 PP 50 Thiophenol 55 Chloroxylenol 38 Glutaraldehyde (50%) 37 Polystyrenesulfonic acid 50 Tobacco base 200 Dimethylphthalate 50 Dodecylbenzenesulfonic acid (86%) 640 Dianal LR-117 (40%) 3150 Isopropyl alcohol 4850 Isobutyl alcohol 1340 Add thiophenol, chloroxylenol and glutaraldehyde (50%) to a part of isopropyl alcohol to make a uniform solution (solution A). Dianal LR-117 (40%) is added to the rest of isopropyl alcohol to make a uniform solution (solution B). R in isobutyl alcohol
P, PP, polystyrene sulphonic acid, tobacco base, dimethyl phthalate and dodecylbenzene sulphonic acid (86%) are added to give a homogeneous solution (solution C). Solutions A, B, and C were combined and mixed uniformly to obtain a fruit tree protection composition for application.

Example 4 A spray fruit tree protection composition was prepared using the following ingredients. Component parts by weight RP 100 Tobacco base 140 Dodecylbenzenesulfonic acid (86%) 370 Pluronic L-64 440 Water 1880 Add Pluronic L-64 to a part of water to make a uniform solution (Solution A). Tobacco base is added to the rest of the water to make a homogeneous solution (Solution B). Then, Solution A, Solution B, RP and dodecylbenzenesulfonic acid (86%) were uniformly mixed to obtain a fruit tree protection composition for spraying.

Example 5 A spray fruit tree protection composition was prepared using the following ingredients. Component parts by weight RP 100 PP 10 Tobacco base 140 Dodecylbenzenesulfonic acid (86%) 370 Pluronic L-64 440 Water 1880 Add Pluronic L-64 to a part of water to make a uniform solution (Solution A). Tobacco base is added to the rest of the water to make a homogeneous solution (Solution B). Then, Solution A, Solution B, RP, PP
And dodecylbenzene sulfonic acid (86%) were uniformly mixed to obtain a fruit tree protection composition for spraying.

Example 6 A spray fruit tree protection composition was prepared using the following ingredients. Component Weight part RP 100 PP 12 Polystyrene sulfonic acid 17 Tobacco base 160 Dodecylbenzene sulfonic acid (86%) 430 Pluronic L-64 520 Water 1200 Add Pluronic L-64 to a part of water to make a homogeneous solution (solution A). Tobacco base is added to the rest of the water to make a homogeneous solution (Solution B). Then, Solution A, Solution B, RP, P
P, polystyrene sulfonic acid and dodecylbenzene sulfonic acid (86%) were uniformly mixed to obtain a fruit tree protection composition for spraying.

Test Example 1 White birch, Beni Itaya, rowan, plum, mandarin orange, peach, pear,
When the fruit tree protective composition prepared in Example 1 was directly applied (width 10 to 20 cm) to the base of a Satsuki fruit tree, sap secretion and wood chips were not observed after several days. This indicates that these trees are protected from pest infestation.

Further, when the fruit tree protecting composition prepared in Example 1 was directly applied to pears, no occurrence of spider mites, powdery mildew, black spot, scab and scab occurred in the untreated area was observed. It was The results were similar to those of the trees sprayed with 1300 times the dithianone wettable powder and 1500 times the azazid hydrate.

Test Example 2 The fruit tree protection composition prepared in Example 4 was diluted 10-fold with water and sprayed onto the branches and leaves of fruit trees of plum, mandarin orange, peach, pear and Satsuki, even after 4 months. No leaf erosion or mold growth was observed, indicating that it was clearly protected from pest infestation compared to untreated fruit trees.

Further, when this composition was sprayed on peaches, as with the zinc bordeaux solution and the dithianon / copper wettable powder, which was 800 times the number, it was not observed the occurrence of the bacterial fungal disease or leaflet disease that occurred in the peaches.

Test Example 3 Pear trees sprayed with the composition prepared in Example 5 1 to 2 weeks after pollination did not develop black spot disease, had no oil worms, and had better fruit growth than other chemical treatments. More than double the harvest. (Harakawa Pear Garden, Akiyoshi Town, Yamaguchi Prefecture) Test Example 4 The apple tree having the composition prepared in Example 3 applied to the trunk after defoliation was much better in growth after germination the next year than that of the untreated tree, and the root stem blight disease was observed. No occurrence of Fran's disease in the branches and leaves was observed. (Keizaburo Mitsuhashi Farm, Minato-machi, Goshogawara City, Aomori Prefecture) In addition, spot leaf scab and scab of the apple trees in the untreated area were not observed in the apple trees coated with the composition prepared in Example 3. The result was similar to that of dithianone thiophanate methyl wettable powder 1000 times.

Test Example 5 The composition of Example 3 was applied to the trunk, and the composition of Example 6 was sprayed on the branches and leaves of the mandarin orange seedlings (second grader). The growth was also very good. (Sakamoto Farm, Arita City, Wakayama Prefecture) Furthermore, the compositions of the present invention (Examples 3 and 6) and compositions lacking the essential components of the compositions of the present invention (Controls I to VII).
The effect of I) was compared in mandarin oranges. The composition of Example 6 and control products I to IV were sprayed with 200-fold diluted solution on the branches and leaves (once / year), and the composition of Example 3 and control products V to VIII.
Apply undiluted solution to tree trunk (once / year), and mandarin orange (3rd grade ~
The situation of 3rd year of 5th grade) is the adhesion of pests and microorganisms, feeding damage,
It was confirmed by a hue change. In addition, 1000 of dimethoate / EPN emulsion used against Yukiyanagi aphid which is a pest of mandarin orange, Coccinellum spp., Aphididae, Citrus spider mite, Mandarin clam beetle, Beetle beetle.
A combination of a double solution (2 times / year) and a 2000 times solution (2 times / year) of guazatine polyoxy wettable powder for controlling gray mold disease (control product IX) was also added to the comparison. The composition (weight ratio) of the composition used in this test is shown in Tables 1 and 2, and the test results are shown in Table 3.
Shown in the table.

From the above results, it is clear that the effect is significantly inferior even if any of the essential components of the composition of the present invention is lacking.

Claims (1)

[Claims] 1. Activity of 3-chloro-6- (4-chloro-3,5-dimethylphenoxy) pyridazine, tobacco base and dodecylbenzenesulfonic acid in a ratio of 1/1 to 3/3 to 8 (weight ratio). A composition for protecting a fruit tree, which is contained as a component and further contains a carrier for these components, against disease microorganisms and pests.