WO2023247331A1 - Insectifuge à base d'ingrédients actifs naturels et de matériaux de support minéraux - Google Patents

Insectifuge à base d'ingrédients actifs naturels et de matériaux de support minéraux Download PDF

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Publication number
WO2023247331A1
WO2023247331A1 PCT/EP2023/066166 EP2023066166W WO2023247331A1 WO 2023247331 A1 WO2023247331 A1 WO 2023247331A1 EP 2023066166 W EP2023066166 W EP 2023066166W WO 2023247331 A1 WO2023247331 A1 WO 2023247331A1
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WO
WIPO (PCT)
Prior art keywords
agent according
fragrances
clays
clay minerals
psyllids
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/EP2023/066166
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German (de)
English (en)
Inventor
Wolfgang Jarausch
Ralf Diedel
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.)
Stephan Schmidt KG
Original Assignee
Stephan Schmidt KG
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 Stephan Schmidt KG filed Critical Stephan Schmidt KG
Priority to EP23733720.9A priority Critical patent/EP4543202A1/fr
Publication of WO2023247331A1 publication Critical patent/WO2023247331A1/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
    • A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
    • 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
    • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P17/00—Pest repellants

Definitions

  • the present invention relates to a biological pest control agent based on mineral raw materials in the form of a repellent against psyllids, a process for its production and its use.
  • Chemical pesticides generally affect beneficial as well as harmful types.
  • the insect pests acquire resistance to such chemicals and new populations of resistant pests can develop rapidly.
  • chemical residues can pose a risk to the environment and cause health problems.
  • Biological pest control can represent a suitable alternative to chemical pesticides.
  • psyllids represent e.g. B. in fruit trees, dangerous diseases are transmitted by psyllids. In recent years, these diseases have become more and more widespread and are reducing the quality of the fruit or causing the fruit trees to die completely. Fighting psyllids with insecticides has proven to be a highly environmentally damaging measure.
  • kaolin a white rock powder or clay mineral
  • the clay minerals make it difficult for insects to stay on the leaves.
  • Corresponding products are commercially available, such as: B. Surround® or Cutisan®.
  • a sprayable, stem-colored film (or a spray solution) based on clay materials and is rainproof is intended to reduce the transmission of phytoplasmosis through the Keeping away psyllids can be developed.
  • the film should be mixed with a conifer fragrance in order to increase its repellent effect (DBU: Development of a biological repellent against psyllids).
  • the object of the present invention was therefore to develop a biological and environmentally friendly agent or a corresponding composition, which can be used as the most effective repellent, among other things, against psyllids, while minimizing the disadvantages of the solutions known from the prior art largely avoided.
  • composition or agent of the type described below preferably being used in a sprayable embodiment or formulation.
  • the agents according to the invention are based on clay/clay minerals that are not white, but gray-brownish, i.e. roughly bark-colored, and are therefore visually inconspicuous.
  • Original clays from primary and/or secondary deposits are preferred. These are either il litic-chloritic, chloritic-vermiculitic, i 11 it isch-kao I in it isch or bentonite, whereby both pure Ca bentonites and activated Ca bentonites can be used.
  • each type can consist of different representatives or their mixtures, are used alone or in a mixture, the mixing ratio preferably varying from 10:90 to 90:10 (illitic-chloritic clays: illitic-kaolinitic clays) (here and below all information in weight. -%).
  • Some preferred representatives of the clay minerals according to the invention are listed below:
  • chloritic chlorite, clinochlore, chamosite
  • biotite muscovite
  • the clayey raw materials preferred according to the invention have a large granulometric difference in addition to the color (non-white) and granulometrically compared to the materials used in the prior art.
  • the clays preferred according to the invention already have an extreme degree of fineness, which can be further improved through an appropriate sifting process. The reason for this is the different genesis of the raw materials, the state of the art and that of the present invention.
  • Kaolins which are used in the products of the state of the art, are generally coarser than clays, and the remaining fine fraction is removed during the processing of the kaolins.
  • B. the proportion of the clay mineral fraction ⁇ 2 pm in the products on the market is approx. 10%, while in the clay mineral fraction preferred according to the invention it is 31-55%.
  • the high fineness of the clays and the associated higher specific surface area results in the advantage of improved adhesion to e.g. B. branches of fruit trees compared to the known and coarser kaolins.
  • the washability, e.g. B. by rain, the fine-grained Clay is at least comparable to commercially available formulations that contain wetting agents in addition to kaolins. This means that the wetting agent (chemicals) can be dispensed with or the frequency of spraying in an application season can be reduced, for example. B. be reduced from four times to once or twice.
  • bentonites are used alone or as a mixing partner as clay minerals. Due to their surface charges and anion and cation exchange capacities, bentonites can store or deposit various substances much better than other clays, but especially kaolins. This includes e.g. B. improved deposition of fragrances.
  • the composition according to the invention (deterrent) preferably does not contain any wetting agents. If wetting agents are used, e.g. B. if the wash-off resistance can be further increased, the proportion of wetting agents in the composition is kept as low as possible, since it is an additive in accordance with Section 42 of the Plant Protection Act (preferred amounts (% by weight) based on the clay minerals used: 0.001 up to 0.005% by weight. Typical, officially approved wetting agents include: B. Wetcit, BreakThru, Trifol ioS-forte, Zentero SPR.
  • the agents according to the invention for increasing repellency can include fragrances, which may only be added to the agent shortly before spray application.
  • any fragrance that repels the psyllids is suitable.
  • pine needle fragrances typically include a fragrance spectrum that includes the following ingredients:
  • camphene, camphor, limonene and hexanal or mixtures thereof are particularly suitable for the purposes according to the invention.
  • These components can be identified and isolated from the extracted extract using known chemical methods (e.g. by GC-MS; coupling gas chromatography with mass spectrometry).
  • fragrances e.g. B. from the pine needles
  • various known extraction methods such as. B. take place as a hot water extract (65° C), which can be repeated several times, whereby the concentration of the fragrance depends on the amount of water used (e.g. 150 ml of water for 50 g of pine needles).
  • a mixture of water to which approximately 10% by weight of ethanol is added shortly before incubation is also suitable as an extractant.
  • the content of fragrance or fragrance mixtures can vary within wide limits for the purposes according to the invention. Contents of 0.1 to 1% by weight, based on the clay minerals used, are preferred. With the agents according to the invention, the desired repellency can be achieved in various ways. On the one hand, the applied protective film offers a so-called mechanical repellency, as the clay minerals prevent the substrates (fruit trees) from being punctured. Naturally occurring sulfides present in the clays or mixed into them, such as: B. Pyrite or Marcasite (FeS2), lead to an additional repellency of the agents used, which can also be referred to as chemical repellency. Thus, the present invention also includes the joint use of clays and sulfides in a deterrent. The sulfur content of these mixtures is preferably 0.1 to 1% by weight, in particular 0.2 to 0.5% by weight, based on the clay minerals used.
  • compositions according to the invention preferably have Corg contents of 0.5 to 5% by weight, in particular 2 to 4% by weight, based in each case on the weight of the clay minerals used.
  • the Corg content is preferably characterized by the fact that a mixture of humins and humic acids/fulvic acids is present in the clays or the added organic substances.
  • the ratio (weight ratio) of the humins to the sum of humic and fulvic acids is preferably 1 to 5, in particular 1.5 to 3.
  • compositions according to the invention therefore comprise the following components, although not all of them have to be present at the same time: a) non-white clay minerals or mixtures thereof, the proportion of the clay mineral fraction with grain sizes of ⁇ 2 pm preferably being 31 to 55% by weight. Chloritic-illitic clays are preferably used alone or as mixing partners. b) wetting agents, if necessary c) fragrances, preferably in the form of conifer fragrances, in particular pine needle extracts and here preferably the ingredients camphene, camphor and/or limonene. d) sulfides, such as B. pyrite and / or marcasite, which are naturally present in the clays used or are mixed into them and e) organic materials, such as. B. humins and humic acids/fulvic acids, which occur naturally in the clays used or are mixed into them or their compositions.
  • the components a) to e) mentioned do not always have to be all contained in the composition according to the invention.
  • Mandatory components are the clay minerals mentioned or their mixtures. Otherwise, the invention also includes all possible subcombinations of components a) to e).
  • the invention includes the following variants: 1) a composition that includes fragrances when first produced, and
  • composition according to the invention can be in the form of a dry or moist but solid composition, which is only converted into a spray suspension by the user by adding water, or the composition can be in the form of a concentrate to which additional water must be added before use, or the composition/agent are delivered as a ready-to-use spray suspension.
  • production is carried out by mixing the components contained therein, preferably proceeding as follows:
  • the spray suspensions according to the invention preferably contain 1-5% by weight of the clays according to the invention, based on the finished one Spray suspension.
  • the application rates (given in clay/ha) vary depending on the respective culture and are preferably:
  • the number of treatment cycles usually varies between 1 and 4 and naturally depends on the weather (such as a lot or less rain).
  • the main application periods for the agents according to the invention are from February to April.
  • the products are preferably applied before the first pests appear.

Landscapes

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

Abstract

Un répulsif pour psylles comprend des minéraux argileux non blancs ou un mélange de ceux-ci, éventuellement des agents mouillants, des parfums de conifères sous la forme d'extraits d'aiguilles de pin, des sulfures tels que la pyrite et le marcasite, des substances organiques telles que des humines et des acides humiques/acides fulviques et de l'eau pour la production d'une suspension de pulvérisation.
PCT/EP2023/066166 2022-06-23 2023-06-15 Insectifuge à base d'ingrédients actifs naturels et de matériaux de support minéraux Ceased WO2023247331A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23733720.9A EP4543202A1 (fr) 2022-06-23 2023-06-15 Insectifuge à base d'ingrédients actifs naturels et de matériaux de support minéraux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022115635.4A DE102022115635A1 (de) 2022-06-23 2022-06-23 Biologisches Schädlingsbekämpfungsmittel auf Basis mineralischer Rohstoffe
DE102022115635.4 2022-06-23

Publications (1)

Publication Number Publication Date
WO2023247331A1 true WO2023247331A1 (fr) 2023-12-28

Family

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Family Applications (1)

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PCT/EP2023/066166 Ceased WO2023247331A1 (fr) 2022-06-23 2023-06-15 Insectifuge à base d'ingrédients actifs naturels et de matériaux de support minéraux

Country Status (3)

Country Link
EP (1) EP4543202A1 (fr)
DE (1) DE102022115635A1 (fr)
WO (1) WO2023247331A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013123176A1 (fr) * 2012-02-14 2013-08-22 University Of Florida Research Foundation, Inc. Systèmes particulaires d'ingénierie pour une libération contrôlée de pesticides et de répulsifs
US9763440B2 (en) * 2015-07-30 2017-09-19 University Of Florida Research Foundation, Inc. Colored clays for agricultural and other industrial applications
US20180055032A1 (en) * 2011-10-14 2018-03-01 The Regents Of The University Of California Odors for psyllid trapping, repelling and control
CN111328604A (zh) * 2020-03-22 2020-06-26 华中农业大学 一种柑橘木虱绿色防治方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109303077A (zh) 2018-09-30 2019-02-05 湖州稻草娃生物科技有限公司 一种驱虫剂

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180055032A1 (en) * 2011-10-14 2018-03-01 The Regents Of The University Of California Odors for psyllid trapping, repelling and control
WO2013123176A1 (fr) * 2012-02-14 2013-08-22 University Of Florida Research Foundation, Inc. Systèmes particulaires d'ingénierie pour une libération contrôlée de pesticides et de répulsifs
US9763440B2 (en) * 2015-07-30 2017-09-19 University Of Florida Research Foundation, Inc. Colored clays for agricultural and other industrial applications
CN111328604A (zh) * 2020-03-22 2020-06-26 华中农业大学 一种柑橘木虱绿色防治方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
.: "Entwicklung eines biologischen Vergrämungsmittels (Repellent) gegen Blattflöhe (Psylliden)", WEBSEITE, 22 June 2021 (2021-06-22), Germany, pages 1, XP093075328, Retrieved from the Internet <URL:https://www.dbu.de/projektbeispiele/entwicklung-eines-biologischen-vergraemungsmittels-repellent-gegen-blattfloehe-psylliden/> [retrieved on 20230822] *
AMORÓS MARÍA EUGENIA ET AL: "Response ofDiaphorina citri(Hemiptera: Liviidae) to volatiles characteristic of preferred citrus hosts", ARTHROPOD-PLANT INTERACTIONS, SPRINGER NETHERLANDS, DORDRECHT, vol. 13, no. 3, 14 November 2018 (2018-11-14), pages 367 - 374, XP036782222, ISSN: 1872-8855, [retrieved on 20181114], DOI: 10.1007/S11829-018-9651-8 *
NEHLIN GUNILLA ET AL: "Use of conifer volatiles to reduce injury caused by carrot psyllid,Trioza apicalis, Förster (Homoptera, Psylloidea)", JOURNAL OF CHEMICAL ECOLOGY, vol. 20, no. 3, 1 March 1994 (1994-03-01), NL, pages 771 - 783, XP093075134, ISSN: 0098-0331, Retrieved from the Internet <URL:http://link.springer.com/article/10.1007/BF02059612/fulltext.html> DOI: 10.1007/BF02059612 *
PIERRE MYRTHO O ET AL: "White and red-dyed kaolin particle films reduce Asian citrus psyllid populations, delay huanglongbing infection, and increase citrus growth", CROP PROTECTION, ELSEVIER SCIENCE, GB, vol. 150, 11 August 2021 (2021-08-11), XP086798327, ISSN: 0261-2194, [retrieved on 20210811], DOI: 10.1016/J.CROPRO.2021.105792 *

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Publication number Publication date
EP4543202A1 (fr) 2025-04-30
DE102022115635A1 (de) 2023-12-28

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