DD272219A1 - METHOD OF WOUND TREATMENT OF BUILDINGS - Google Patents

Abstract

The invention relates to a method for the treatment of wounds of trees, especially of fruit trees in horticulture and agriculture and of commercial trees in forest and forest. The inventive method is based on two successive coat layers, an aqueous latex layer and after their setting of an anhydrous suspension of a layered silicate, which specific ingredients, eg. As fungicides, bactericides, adsorbed contains, in Alkydharzlack. As a result, permanent adhesion, weather resistance, abrasion resistance and depot effect for the biocidal ingredients are achieved.

Description

The invention relates to a method for the treatment of wounds of trees, especially of fruit trees in horticulture and agriculture, and also of crop trees in forest and forest.

Characteristic of the known state of the art

It is known that the wound treatment of trees can be done by brushing and painting with surface-sealing substances of different chemical composition and consistency.

Thus, the following essential variants are described. According to the teaching of DE-AS 1 964 717, polyurethane egg silicone resin are applied in anhydrous dilute solutions, whereby a closure of the wound by the action of moisture and da.durch caused by polymerization occurs. DE-AS 2 247 771 recommends an aqueous dispersion or emulsion of plastics and / or natural resins with content of dyes, fungicides and Betonit oowie other fillers. Similarly, on an aqueous basis, wound closure may be by hydraulically setting substances such as cement, lime mixtures, foam concrete, pumice, gypsum and clays. Also known are water glass and silicate solutions and silicate fumes. Tree wax, caroline and tixotropic loam are known as natural occlusive agents.

2 7 12 i 9

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According to DE-OS 3 004 234, plastics, ζ. Β. Polyvinyl acetate or polyethylene wax, applied to woundo in conjunction with v / aa-free solution agents. These solutions may also contain fungicides, insecticides and antifoulants. The use of plastics, resins and carbolineum is also described in DE-OS 3,044,499. The disadvantages of the two principal ways of wound healing - anhydrous solutions capable of polymerization and suspensions on aqueous base - can be summarized as follows:

Non-aqueous-based wound closures are easily detached from the bleeding wound as a whole. Because of the diversity of the surface media, there is no permanent adhesion. Although suspensions on aqueous Basia show more favorable surface features on the bleeding wound and thus beasere liability, but are subject to mass transfer, leaching and mechanical destruction, eg. B. by Witterungseinflüsae. Another disadvantage is given by the fact that optionally added ingredients such as fungicides, bactericides and anti-fouling agents, etc., have no depot effect and are replaced very quickly.

Object of the invention

The aim of the invention is a method of wound treatment of trees, which ensures a firm adhesion, weather resistance and a depot effect for contained biocidal ingredients.

Presentation of the essence, the invention

The invention has for its object to combine the advantages of the aqueous and the anhydrous system in a process which also ensures a depot effect of necessary biocidal ingredients.

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According to the invention the object is achieved by two successive layers of paint. The tree wound v / ill be initially coated with an aqueous latex binder and, after a setting time of about 30 minutes by treatment with a suspension of S _n hichtsilikates comprising at least an adsorbed ingredient against rot and / or fungicide and / or bactericide and / or Contains remedies for V / and closure, in alkyd resin varnish. The phyllosilicate used as the adsorbent for the ingredients is preferably a powdered, anhydrous product of the type magadiite. The composition of the three-component system alkyd resin lacquer-phyllosilicate-adsorbed binary ingredient is according to the invention within the following limits:

Alkyd resin paint 50 to 80 Ma. %

Phyllosilicate 15 to 50 Ma. % adsorbed biocides

Ingredient 0.1 to 3 Ma. %

The process of the two-layer construction according to the invention ensures an unexpectedly firm adhesion and high heat resistance by forming the latex film from the aqueous medium and the. subsequent closure by the anhydrous system Alkydharzlack layered silicate, with a langanha.ltende depot effect, d. H. Slow release of biocidal ingredients is achieved.

Ausführungsbeispie.l

Fresh wounds caused by pruning Golden Delicious were infected with the following bacterial and fungal pathogens (Table):

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1 β Paeudomonaa ayringae

2 a Nectria galligena

3 β Cytoapora apec.

4 «Gloeoaprium perennana

5 β Fhomopsis mali

The fresh wounds infected with the pests were treated as follows:

- with tree wax, which was applied by conventional methods with microbicidal Wirkatoffen

- according to erfindungagemäßen method

1. with latex binder

2. After a setting time of 30 minutes with a layer of 80% by weight Alkydharzlack

19.5 mass% Na magadiite 0.5 mass% adsorbed microbicidal active substance

The following bactericidal and fungicidal substances were used as microbiocidal active substances (Table ;:

Tetramethylthiuram disulfide zirconium bis (N-diethyldithiocarbamate) methylene-bis-cymethyl-cyanimidodithiocarbamate ^ N-trichloromethylthio-tetrahydrophthalimide tributyltinoxide

Carbendazim: N (benzimidazol-2-yl) -methylcarbamate Zinc-ethylene-1,2-bis-dithiocarbamate

The persistence of each wound closure method is shown in the table.

The number of positive infection sites are averages of 5 replicates and were measured on different rating dates.

I β thiram II β DADZ: III a Mbmc: IV = Captan V β TBTO: VI a car ben VII   Zineb:

-5-

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In the table given mean:

- Infection Squadroninj 13 · 02. 1984

- Boniturtermirti

a β 28th 08th 1984 Ό β 29th 11th 1S84 C β 30th 04th 1985

- 1 to 5 = pest generators

- I to VII · λ Ba.umv / achs with mikrobiozidon agents

- Ia to VIIa = method according to the invention with micro-

biocidal agents

- UK a untreated control body

Table: Persistence

Number of positive infection sites: Harmful! UK: I

'Ia

II

i Ha I III IHa IV IVa

Va

VI

Via IVII VIIa

exciterj from c'ab c; a b c | ab cab c j a b c a. b ciab ciab c ί a b ei ρ b c ab o; from cab c ab c

2 4; 0 1 2! 0 0 OiO 0

157; O23! OO1 | O15 7 9 0 2

5h 2 5

3

0 0 2 0 1 3 0 1 3 0 2 5 0 1 4 0 CV i 3

000 ¹ Ou 41 00

0 0

003001

0 0 211 3 4 0 1

0 0 3 JO 0

0 0 2 0

0 0

0 0 0 0 2! 0 0 0; 0 1 3

0 2 3 0 0 2ju 13 0 0 2iO 1 2

0 0 2 0 0 4iO 0 2 1 1 1

0 1 5

0 2 3 0 0 1

0 0 1

0 0 3iO 0 2

0 1 3

0 0 0

0 1 3

1 1 3

0 0 1 0 0 2

0 0 1

12 5 0 13 0 0 4J0 0 2 0 2 3j 0 0 1

1 2 5

2 2 3 1 2 2 1 1 4

0 0 1

0 1 3

0 1 2

0 0 1

0 0 3

Claims (3)

claims Method of treating wounds of trees by means of two successive coats of paint, characterized in that the tree bark is first coated with a latex binder and, after a setting time of at least 30 minutes, a treatment is carried out with a suspension of the following composition: Alkyd resin paint 50 to 80 pigs Phyllosilicate 15 to 50% by mass adsorbed biocides Ingredient 0.1 to 3% by mass » 2. The method according to claim 1, characterized in that daJ3 is used as a synthetic "sheet silicate powdery product of the type magadiite. 3. The method according to claim 1, characterized in that is used as an adsorbed, biocidal ingredient, an antifouling agent and / or a fungicide and / or a bactericide and / or a healing agent for wound closure.