WO2009056301A2 - Emplâtre à base de diméthoate utilisé pour lutter contre l'infestation d'arbres par des insectes - Google Patents

Emplâtre à base de diméthoate utilisé pour lutter contre l'infestation d'arbres par des insectes Download PDF

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Publication number
WO2009056301A2
WO2009056301A2 PCT/EP2008/009145 EP2008009145W WO2009056301A2 WO 2009056301 A2 WO2009056301 A2 WO 2009056301A2 EP 2008009145 W EP2008009145 W EP 2008009145W WO 2009056301 A2 WO2009056301 A2 WO 2009056301A2
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WO
WIPO (PCT)
Prior art keywords
layer
active substance
containing layer
patch according
dimethoate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/009145
Other languages
German (de)
English (en)
Other versions
WO2009056301A3 (fr
Inventor
Malgorzata Kloczko
Michael Roreger
Birgit Kocherscheidt
Bernard Coudin
Thomas ZÜHLKE
Mathias Gerber
Maik Hoge
Lars Weichel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ICS Innovative Care Systems Andernach GmbH
Original Assignee
ICS Innovative Care Systems Andernach GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ICS Innovative Care Systems Andernach GmbH filed Critical ICS Innovative Care Systems Andernach GmbH
Priority to EP08843841A priority Critical patent/EP2203066A2/fr
Publication of WO2009056301A2 publication Critical patent/WO2009056301A2/fr
Publication of WO2009056301A3 publication Critical patent/WO2009056301A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing acyclic or cycloaliphatic radicals

Definitions

  • the present invention is dimethoate-containing self-adhesive patch for use on trees, in particular a patch for controlling the
  • Chestnuts moth (Cameraria ohridella) on white-flowering chestnut trees.
  • the white-flowered horse chestnut (Aesculus hippocastanum) is attacked by the chestnut miner moth (Cameraria ohridella).
  • the damaging developmental stage of this butterfly are the larvae, which feed along the leafy nerves of the chestnut leaf aisles to larger spaces (mines). This leads to damage to the leaves and early discoloration and leaf fall.
  • the spraying or pouring of insecticidal solutions on leaves or in the soil can not be done without the risk of contamination of the environment.
  • the root injection which is carried out by means of drills, leads to damage to the tree, in particular the components of the tree trunk lying beneath the bark, such as bast, cambium, wood.
  • the pheromone traps must be frequently replaced during a growing season and promise no high mortality of larvae already in the chestnut foliage. Also, the attachment and maintenance of pheromone traps requires a lot of work. Finally, the capacity of a pheromone trap is limited, so that in the case of a very strong infestation of a chestnut by Kastanienminiermotten only insufficient control is possible. Finally, in particular the change of the pheromone trap required several times per growing season brings with this type of control a high economic outlay.
  • the object of the present invention is to provide a product which causes the death of larvae of the chestnut leafminer without the risk of contaminating the environment or the user with insecticide-containing solutions. Also, no systemic damage to the tree should take place. The product should also be used only once per growing season, thereby enabling more economical control.
  • Another object of the present invention is to provide a method for controlling the infestation of chestnut trees by the chestnut miner moth without causing plant damage and without the aforementioned disadvantages of the prior art.
  • the problem is solved by a self-adhesive patch to control harmful insects that infest trees and have a leaf- or needle-damaging effect, the plaster containing the active ingredient dimethoate.
  • the patch has a back layer impermeable to this active substance and at least one active substance-containing layer.
  • the plaster preferably has a pressure-sensitive adhesive underside, with which the permanent attachment of the patch can be ensured on the surface of a tree trunk.
  • the active substance-containing layer is pressure-sensitively equipped.
  • the patch may contain an additional pressure-sensitive adhesive layer.
  • the patch may also have an anchor layer which effects better attachment of the drug-containing layer to the drug-impermeable backing layer.
  • the patch contains a protective layer to be peeled off before use, which covers the pressure-sensitive adhesive-coated underside of the plaster - ie active substance-containing layer or the additional pressure-sensitive adhesive layer.
  • Another embodiment provides that a composite laminate of backing layer and active substance-containing layer (and optionally further layers) is present in rolled-up form. If the upper side of the backing layer is sufficiently dehesive (i.e., non-sticky, adhesion-repellent), it can take over the function of the protective layer in the rolled-up form, so that a separate protective layer to be peeled off before use can then be dispensed with.
  • the patch may contain another release-controlling layer.
  • Another object of the invention is the process for producing a patch containing an active ingredient-containing layer of at least one polymer and the active ingredient dimethoate.
  • a patch containing a drug-containing layer of at least one polymer and the active ingredient dimethoate for controlling insect pests that affect trees and have a leaf-damaging effect, a further object of the invention.
  • a patch for controlling the Kastanienminiermotte (Cameraria ohridella) are used, which infest the white-flowering chestnut (Aesculus hippocastanum). This use is preferably directed against the larval stage of this insect.
  • the active substance is released directly from the plaster into the surface of the tree.
  • the active ingredient can be transported in tree trunking system, preferably in the vascular bundle, in the branches, branches and leaves.
  • the "active layer impermeable backing layer” is flexible so that the patch conforms as fully as possible to the surface of the tree to be treated in a particular embodiment, in a particular embodiment the backing layer has the ability to extend longitudinally Longitudinal layer of up to 30%, preferably of up to 20%, in this way the plaster can take into account any growth in the growth of the tree trunk which takes place.
  • Suitable materials for the "active substance-impermeable backing layer” are films made of plastics and metal, as well as composite laminates of these two materials, preferably aluminum-coated plastic films.
  • the backing layer is flexible due to a layer thickness below 90 microns.
  • the backing layer is between 8 and 55 ⁇ m thick, more preferably between 10 and 40 ⁇ m.
  • the ability to be impermeable to the active ingredient means that during application of the patch in a growing season, only such a small amount of the dimethoate can escape through the backing layer, thereby resulting in neither degradation of the environment nor impairment of the effectiveness of the plaster. Preferably, no dimethoate escapes through the active layer-impermeable backing layer.
  • the "active substance-containing layer” contains in addition to the active ingredient dimethoate at least one polymer.
  • Suitable polymers include polyisobutylenes, poly (meth) acrylates, silicones, ethylene-vinyl acetate copolymers, polystyrene, styrene-isoprene-styrene block polymers, rubber, cellulose, cellulose derivatives and their combinations are particularly suitable.
  • poly (meth) acrylate copolymers and ethylene-vinyl acetate copolymers especially those - and this applies to the ethylene-vinyl acetate copolymers - having a vinyl acetate content of 35 to 62%, preferably 40 to 55% and those - and this applies to the poly (meth) acrylate copolymers - with a vinyl acetate content of up to 56%, preferably up to 45%.
  • These polymers can have the substance property "pressure-sensitive", so that the active substance layer in the plaster is pressure-sensitive, but the pressure-sensitive adhesive property can be too low to stick securely to the site of use which causes an increase in the adhesive force
  • Such "tackifiers" are known to those skilled in the art.
  • Abietic acid and derivatives of hydrogenated abietic acid are included.
  • Suitable polymers also include hot melt adhesives, which are known as "hotmelts.” These are adhesives which bind physically and are present in one-component solid and solvent-free form at room temperature.
  • Polymers and copolymers such as ethylene-vinyl acetate, ethylene / CO copolymers, ethylene / vinyl acetate / CO terpolymers, ethylene / acrylate / CO terpolymers, propylene / hexene copolymers, polybutenes, SIS / SBS copolymers, thermoplastic elastomers and amorphous polyolefins, b) polyadducts such as linear, thermoplastic polyurethanes and c) polycondensates such as copolyesters, polyamide resins, copolyamides, polyamide / EVA copolymers, polyamide / siloxane copolymers, polyesteramides, polyetheresteramides, polyesteramidimines and polyetheramides
  • the active substance-containing layer may additionally contain other substances. These include, for example, plasticizers, fillers, dyes, pigments, antioxidants and, in particular, substances which cause an increase in the rate of the entry of the active ingredient into the surface of the tree trunk ("enhancer").
  • the active substance-containing layer may furthermore also contain, in particular, odor neutralizers as auxiliary substances.
  • odor neutralizers are all essential oils that are compatible with all other components of the formulation. Etheric oils are known to the person skilled in the art and can be purchased, for example, from Düllberg Konzentra GmbH & Co. Most suitable are essential oils with an intense and lasting odor (with so-called. Footnote), such as rose oil, vanilla oil, banana oil, citronella oil, lavender oil, sandalwood oil and their mixtures. Particularly preferred is a mixture of vanillin and isopentyl acetate.
  • the active substance-containing layer may have a thickness of 0.1 mm to 1.5 mm. Preferred is a thickness of 0.35 to 1.2 mm. A layer thickness of 0.35 mm or more can help to better compensate for unevenness in the root surface.
  • the active substance-containing layer can also have the form of a foam. This means that cavities are contained in this layer which are filled with gas (generally air).
  • the foam may have an open-cell, a closed-cell or partially open-cell structure. The open-cell structure is preferred.
  • the foam may be hard or soft, with the soft embodiment being preferred. If the active substance-containing layer the
  • the layer thickness can be up to 100 times greater than the thicknesses mentioned in the previous section.
  • the active substance-containing layer has a plastic deformability.
  • plastic deformability By this is meant that the three-dimensional nature of this layer may permanently change upon application of an external force. It is therefore neither a rigid layer in which the application of an external force causes no change in the three-dimensional nature, nor to an elastic layer, in the case of the elimination of the external force, the three-dimensional nature of the original form goes back.
  • the active substance-containing layer is flowable at temperatures above 60 ° C.
  • the active ingredient dimethoate is preferably present in dissolved form in the active substance-containing layer.
  • the active substance-containing layer can therefore also contain suitable solvents, for example butyrolactone, N-methylpyrrolidone (NMP), N-octylpyrrolidone (NOP) and dimethyl sulfoxide.
  • the active ingredient dimethoate is contained in the active ingredient-containing layer in an "effective amount.” This amount, of course, depends greatly on the stage of development and the age of the tree to be treated, therefore generally between 5 to 50 mg / cm 2 , preferably 10 to 20 mg / cm 2 dimethoate in the active substance-containing layer.
  • the area of the active substance-containing layer per plaster can also be adapted to the needs. The area can be between 10 and 2000 cm 2 , preferably between 50 and 500 cm 2 . These surfaces are preferably achieved by rectangles having edge lengths (width, length) of 2.5 to 500 cm, preferably from 5 to 100 cm.
  • the active substance-containing layer has a width of at least 10 cm to 40 cm and a length of 25 cm to 100 cm, wherein at the same time the length is at least equal to the width, but preferably greater than the width.
  • a single patch may contain from 50 mg to 100 g, preferably from 250 mg to 25 g dimethoate.
  • a single patch may have an area at least equal to the area of the active agent-containing layer. Preferably, however, the area of a single patch is greater than the area of the active agent layer, especially if the backing layer is larger than the active agent-containing layer or if the active-agent-containing layer is in the form of partial matrices.
  • the concentration of the active ingredient dimethoate can be between 7 and 40% by weight, preferably between 10 and 35% by weight and particularly preferably between 20 and 32% by weight.
  • the relatively high concentration is particularly advantageous when a rapid onset of action is desired, as in the case of the control of larvae of the first generation.
  • An optimum for this purpose may represent the concentration range of 27 to 30 wt .-%.
  • the active substance-containing layer can be continuous or interrupted in the form of partial matrices.
  • These sub-matrices are to be understood as meaning that a plaster has at least two sections of the active-substance-containing layer arranged side by side, preferably at a certain spatial distance. These discrete sections of the active substance-containing layer preferably have the same size. In this way, it is possible for the user to separate from a virtually "endless" composite laminate of backing layer and active substance-containing layer (and possibly another layer) plaster with a defined number of sub-matrices and thus a certain length and thus ultimately the amount of dimethoate per To determine plaster.
  • the sub-matrices have a longitudinal extent in a first direction corresponding to the width of the patches and a longitudinal extent in a second direction perpendicular to the first corresponding to at least 1 cm.
  • the active substance-containing layer comprises at least one "substance which causes an increase in the rate of entry of the active ingredient dimethoate into the surface of the tree trunk."
  • penetration enhancers include, for example, substances from the following substance groups: alcohols (eg B. octanol, dodecanol), fatty acids (eg oleic acid), fatty acid esters (eg isopropyl myristate, ethyl oleate), terpenes (eg eucalyptol, menthol), 2-pyrrolidone derivatives (eg N methylpyrrolidone
  • NMP N-octylpyrrolidone
  • carboxylic acid eg, neodecanoic acid
  • sulfoxides eg, DMSO
  • a membrane of suitable polymeric material may be considered.
  • materials include, for example, ethylene-vinyl acetate copolymers having a vinyl acetate content of 15 to 60%, preferably 25 to 45%.
  • Such a control layer may have a thickness between 12 and 80 microns. The function of this layer is to limit the rate of escape of dimethoate from the drug-containing layer of the patch. This mitigates possible effects of climatic conditions on the rate of release of the active substance from the active substance-containing layer.
  • the optionally additionally present pressure-sensitive adhesive layer has the purpose of ensuring a secure adherence of the plaster to the surface of the tree trunk, provided that the pressure-sensitive adhesive layer is composed of a pressure-sensitive adhesive and optionally excipients such as plasticizers, tackifiers, fillers, antioxidants.
  • Pressure-sensitive adhesives are known to the skilled person. These are polymer materials that are aggressive and permanently adhesive at room temperature. In question, preference is given to pressure-sensitive adhesives based on poly (meth) acrylates, polyisobutylenes and silicones.
  • an “anchor layer” present in the plaster is to improve the attachment of the active substance-containing layer to the backing layer impermeable to the active substance.
  • the preparation of a patch is achieved by mixing at least one polymer with the active ingredient dimethoate. This is preferably carried out using higher temperatures, so that the at least one polymer is a flowable mass and forms such a flowable mass in admixture with the dimethoate. This mixture can then be applied continuously to a suitable substrate, for example an intermediate carrier or an anchor layer, but preferably directly to the backing layer. The mixture can also be applied intermittently to these suitable substrates. In this case, the active substance-containing layer is produced.
  • continuous is meant that the mixture is applied without interruption to the moving pad in a predetermined thickness and width, while in the “intermittent” case there are interruptions in the order.
  • the active ingredient-containing layer which may be present in the form of partial matrices, which preferably takes place by means of a cooling roller, it is provided with a backing layer, if it has not already occurred.
  • Other layers can also be applied by lamination to the active substance-containing layer or the laminate containing the active substance-containing layer. These include, for example, a pressure-sensitive adhesive layer which is used if the active substance-containing layer itself is not sufficiently pressure-sensitive.
  • the laminate of the active substance-containing layer and the backing layer can also be provided with a protective layer which covers the active substance-containing layer or the additional pressure-sensitive adhesive layer.
  • the patch can in principle be used to control noxious insects which infest trees - ie perennial, woody seed plants having a dominant shoot which increases in size by secondary growth of thickness - and which have a leaf or needle damaging effect.
  • pest insects include Thaumetopoea processionea, Spinner (Lymantria dispar), Large Frostbite (Erannis defoliaria), Small Frostbite (Operophthera brumata and Operophthera fagata), Goldafter (Euproctis chrysorrhoea), Northern Blackbird (Eriogaster lanestris), Moonbird (Phalera bucephala) , Oak sawfly (Periclista lineolata), poplar leaf wasp (Pristiphora conjugata),
  • Beech beetle (Rhynchaenus fagi), cockchafer (Melolontha melolontha and Melolontha hippocastani), webbed moth (Yponomeuta spp.), Oak moth (Lasiocampa quercus), leaf beetle (Melasoma spp., Phyllodecta spp.
  • robinia miner moths (Phyllonorycter robiniella and Parectopa robiniella) , Sycamore Moth (Phyllonorycter platani), Horse-chestnut Leafminer (Cameraria ohridella), Wooly Napfschildlaus (Pulvinaria regalis), Small Spruce Leaf Wasp (Pristiphora abietina), Pine Processiffy Spinner (Thaumetopoea pityocampa), Pine Bushhorn Sawfly (Neodiprion sertifer), Green Wilhelminian (Polydrusus and Phyllobius), Black-weevil (Otiorrhynchus sulcatus), split-leaf wasp (Acantholyda spp.
  • Larch miner moth (Coleophora laricella), spruce nest winder (Epinotia tedella), spruce needle winder (Epinotia nanana) and (Epinotia pygmaeana).
  • a mixture of 29% by weight of an adhesive resin (hydrobiethyl alcohol, Abitol E), 19.5% by weight of a tackifier (Dertophene T 105), 15% by weight of an ethylene-vinyl acetate copolymer (Evathane 40-55), 5 wt .-% N-methyl-pyrrolidone and 1.5 wt .-% banana-vanilla flavor is prepared with heating to 145 ° C. Thereafter, this melt is cooled to 85 ° C and 30 wt .-% Dimethoat added.
  • this mixture is applied continuously in a width of 100 mm on a 150 mm wide substrate made of green, coated with polyethylene paper, which serves as a backing layer in the finished plaster. After cooling results for the thus prepared active ingredient-containing layer has a basis weight of 690 g / m 2 .
  • This matrix is then covered with a siliconized paper which serves as a peelable protective layer. From this laminate, cross-cut samples are made with a length of 145 mm.
  • Example 1 The preparation of the samples of Example 1 is repeated with the difference that the mixture is applied intermittently to the carrier material. In this way one obtains partial matrices with a width of 100 mm and a length of 145 mm, which are separated by 20 mm wide sections, where the carrier material remains uncoated, these uncoated areas is that the cross cutting.
  • Example 1 The preparation of the samples of Example 1 is repeated with the difference that the mixture is applied to the carrier material with foaming. In this way, one obtains an active substance-containing layer which has a foam structure.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Medicinal Preparation (AREA)

Abstract

L'invention concerne un emplâtre utilisé pour lutter contre des insectes nuisibles qui infestent des arbres et ont un effet nuisible sur les feuilles ou les aiguilles. Ledit emplâtre présente une couche de base, une couche contenant le principe actif avec le diméthoate et au moins un polymère. Ledit emplâtre est fixé de préférence au moyen d'une face inférieure rendue autoadhésive, sur la surface d'un tronc d'arbre.
PCT/EP2008/009145 2007-11-02 2008-10-30 Emplâtre à base de diméthoate utilisé pour lutter contre l'infestation d'arbres par des insectes Ceased WO2009056301A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08843841A EP2203066A2 (fr) 2007-11-02 2008-10-30 Emplâtre à base de diméthoate utilisé pour lutter contre l'infestation d'arbres par des insectes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007052341.8 2007-11-02
DE200710052341 DE102007052341A1 (de) 2007-11-02 2007-11-02 Dimethoat-Pflaster zur Bekämpfung des Insektenbefalls an Bäumen

Publications (2)

Publication Number Publication Date
WO2009056301A2 true WO2009056301A2 (fr) 2009-05-07
WO2009056301A3 WO2009056301A3 (fr) 2009-12-17

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Application Number Title Priority Date Filing Date
PCT/EP2008/009145 Ceased WO2009056301A2 (fr) 2007-11-02 2008-10-30 Emplâtre à base de diméthoate utilisé pour lutter contre l'infestation d'arbres par des insectes

Country Status (3)

Country Link
EP (1) EP2203066A2 (fr)
DE (1) DE102007052341A1 (fr)
WO (1) WO2009056301A2 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD137526A1 (de) * 1978-02-08 1979-09-12 Eugen Templin Verfahren und mittel gegen rindenbruetende forstsch&dinsekten
DE3723380A1 (de) * 1986-07-17 1988-04-14 Shell Agrar Gmbh & Co Kg Vorrichtung zur transcuticularen applikation von wirkstoffen an pflanzen
ES2033746T3 (es) * 1986-07-17 1993-04-01 Celaflor Gmbh Dispositivo para la aplicacion transcuticular de principios activos en plantas.
DE3922366A1 (de) * 1989-07-07 1991-01-17 Lohmann Therapie Syst Lts Vorrichtung zur abgabe systemischer wirkstoffe an pflanzen und verwendung derselben
DE4416927C1 (de) * 1994-05-13 1995-08-31 Lohmann Therapie Syst Lts Vorrichtung zur Abgabe von Wirkstoffen aus Haftschmelzklebern, Verfahren zu ihrer Herstellung und ihre Verwendung
JP3835834B2 (ja) * 1995-03-15 2006-10-18 バイエルクロップサイエンス株式会社 植物処理用貼付剤
DE19909493C1 (de) * 1999-03-04 2000-11-02 Ecs Environment Care Sys Gmbh Verfahren zur Herstellung einer flächigen Zubereitung mit wenigstens einer einschichtigen Wirkstoffmatrix

Also Published As

Publication number Publication date
EP2203066A2 (fr) 2010-07-07
DE102007052341A1 (de) 2009-05-14
WO2009056301A3 (fr) 2009-12-17

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