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WO2011024135A2 - Composition hydrophobe contenant un polymère destinée à la lutte contre les ennemis des cultures - Google Patents

Composition hydrophobe contenant un polymère destinée à la lutte contre les ennemis des cultures Download PDF

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Publication number
WO2011024135A2
WO2011024135A2 PCT/IB2010/053836 IB2010053836W WO2011024135A2 WO 2011024135 A2 WO2011024135 A2 WO 2011024135A2 IB 2010053836 W IB2010053836 W IB 2010053836W WO 2011024135 A2 WO2011024135 A2 WO 2011024135A2
Authority
WO
WIPO (PCT)
Prior art keywords
control
polymer
treatment
formulation
hydrophobic composition
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/IB2010/053836
Other languages
English (en)
Other versions
WO2011024135A3 (fr
Inventor
Yoram Tsivion
Amnon Zor
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.)
LEKET BAR CHEMICALS Ltd
Original Assignee
LEKET BAR CHEMICALS Ltd
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 LEKET BAR CHEMICALS Ltd filed Critical LEKET BAR CHEMICALS Ltd
Publication of WO2011024135A2 publication Critical patent/WO2011024135A2/fr
Publication of WO2011024135A3 publication Critical patent/WO2011024135A3/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
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A01N25/10—Macromolecular compounds
    • 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
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08—Magnoliopsida [dicotyledons]
    • A01N65/36—Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash

Definitions

  • the present invention relates to a composition capable of reducing the infestation of plants by some arthropods in general, and in agricultural crops specifically.
  • the present invention introduces a new composition, or composition range for producing an infestation reduction effect for the benefit of humans and environment in general, without compromising the well being of the crops on which they are applied. DESCRIPTION OF THE PRESENT INVENTION
  • a hydrophobic polymer chiefly polystyrene (PS) is used in a preparation (referred to also as formulation) containing a solvent for use for the purpose of effectively reducing the amount of some insects and spider mites in crops and other, non - crop plants.
  • a solvent for use for the purpose of effectively reducing the amount of some insects and spider mites in crops and other, non - crop plants.
  • typically at least one wetter is added to the formulation, in order to facilitate and enhance the spreading of the sprayed preparation onto the plants on which the formulations are applied.
  • a major concern in preparing a formulation in accordance with the invention is the viscosity and stickiness of the dissolved polymer.
  • a general problem is the clogging of spray nozzles. It would seem that relatively short chained PS is associated with less clogging of the spray nozzles.
  • PS Polystyrene
  • PS Aldrich, typical Mw 230,000
  • PS of higher molecular weight were dispersed and used also in experiments, but it would seem as mentioned above, that the higher molecular weight polymers tend to clog spraying nozzles.
  • the dispersal or liquefaction of the polymer in the dispersing agent produced typically a clear, somewhat yellow, somewhat thick and sticky liquid. Since the dispersed polymer resembled a solution, the present document will sometimes refer to the fully dispersed polymer as solution.
  • High impact PS (HIPS)
  • PS High impact PS
  • Dispersants Typical useful solubilizing agents are limonene, known as D -limonene , and one or more citrus oils, i.e. oily extracts produced from the peel of citrus fruits. Such extracts are available commercially and are rather cheap. Orange oil, grapefruit oil and lemon oil were successfully used. These natural oils are known to contain a large amount of D- limonene. D - limonene is a common solvent for cosmetic uses and cleaning products. Benzyl alcohol was also used successfully, and it is expected that every solvent know in the art, that can solubilize PS, would be useful for a preparation in accordance with the present invention, unless limited by biological/environmental considerations, such as toxicity, phytotoxicity and pollution. Surfactants
  • Surfactants also known as wetters or wetting agents used were Tergitol 15 S 9 or 7 (products of Dow Chemicals) , also silicon based surfactants (ethoxilated polysiloxanes) , notably Silwet L77 by Setre Chemical Company, and break - thru S 240 by Goldschmidt Chemical Corp.
  • Nonyl- phenol ethoxylate surfactant also known as polyoxyethylene nonyl - phenyl ether surfactant was successfully used in other trials.
  • Nonyl- phenol ethoxylate surfactans are now obsolete or forbidden to use in many countries and generally considered harmful to the environment, nevertheless they are good surfactants, agriculturally acceptable, and their successful use in combination with the active material and solvent is considered herein to imply that the function of the surfactant relates to its wetting properties rather than the specific structure of a specific surfactant.
  • Formulation A 20 grams of PS (Aldrich, typical Mw 230,000) were dispersed by mixing in 40 grams of orange oil for 2 hours. After an homogeneous dispersion was formed, 10 grams of Tergitol 15 S- 7 (secondary alcohol ethoxilate by Dow chemicals) was added and a homogeneous mixture prepared.
  • PS Aldrich, typical Mw 230,000
  • Formulation B 10 grams of PS (as in formulation A) were dispersed in 18.2 grams of grapefruit oil. To the homogeneous mixture 2.5 grams of Tergitol 15 S- 9 (secondary alcohol ethoxilate by Dow chemicals) was added and a homogeneous mixture prepared.
  • Formulation C 1.5 grams of PS (as in formulation A) were dispersed in 11.5 grams of furaldehyde, and 4.5 grams of tetraethyl ortho silicate.
  • Formulation D 62 gram polystyrene as in formulation A were dispersed in 738 grams D- limonene, to which 50 grams of polyoxyethylene nonyl - phenyl ether surfactant was added .
  • Formulation E 62 gram polystyrene as in formulation A were dispersed in 738 grams D- limonene, to which 50 grams of Tergitol 15 S- 9 surfactant was added .
  • Formulation A dispersed in water at 0.5 to 1.0%, in each case was used for spraying onto plants infested with pests. Tap or distilled water was used as spray agent carrier, and the dispersion in water was achieved usually by simple shaking. Dipping the plants in a suspension of the formulation was effective at least as spraying.
  • White fly, (Bemisia tabaci) on cotton Two mature cotton plants, Gossypium spp., kept in a screen cage were infested once a week with 50 adult whiteflies, Bemisia tabaci, for a total of 4 weeks. One week after the last infestation leaves of various ages were collected from the plants and treated with the compositions. Old leaves were placed in emergence cages to evaluate the effect on the "pupa" stage. The number of emerged adults in each cage was determined 3 days after treatment. There were 3 replicates for each treatment.
  • Cucumber plants Cucumis sativus, were grown each in 0.5 liter pot. Each plant was infested with 10 females of the yellow spider mite Tetranychus urticae, allowing 15 days to establish on the plant before treating. There were 10 replicates (plants) for each treatment. Plants were treated by spraying on the underside of the leaves where the mites are congregated. The sampling unit was a central true leaf from each plant. Stereomicroscope observations were performed 5, 60 and 120 min after treatment. Leaves were collected 24 hrs after treatment and mites were removed and counted using Berlese funnel.
  • the chive leaves were cut to a height of 5 cm above ground and each plant was infested with 10 females of the onion thrips, Thrips tabaci. The thrips were allowed 14 days to establish on the plant before treatments. Plants were treated by spraying on the leaves. Following the first spraying treatment, a second spraying treatment was carried out using the same plants 9 days later.
  • the sampling unit was all the leaves of a plant cut at ground level. Thrips were removed and counted using Berlese funnel. Treated leaves were collected 3 days after treatment.
  • Cicada Esmpoasca lybica
  • Diospyros persimmon

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Pest Control & Pesticides (AREA)
  • Mycology (AREA)
  • Microbiology (AREA)
  • Botany (AREA)
  • Biotechnology (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention concerne une composition hydrophobe destinée à la lutte contre certaines espèces d'insectes et certains tétranyques (acarides). La composition contient un polymère comprenant du polystyrène. Le polymère est dispersé par un agent en quantité suffisante pour disperser entièrement le polymère. Un tensioactif incorporé consiste généralement en un tensioactif acceptable en agriculture.
PCT/IB2010/053836 2009-08-27 2010-08-26 Composition hydrophobe contenant un polymère destinée à la lutte contre les ennemis des cultures Ceased WO2011024135A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23732509P 2009-08-27 2009-08-27
US61/237,325 2009-08-27

Publications (2)

Publication Number Publication Date
WO2011024135A2 true WO2011024135A2 (fr) 2011-03-03
WO2011024135A3 WO2011024135A3 (fr) 2011-06-16

Family

ID=43530184

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/053836 Ceased WO2011024135A2 (fr) 2009-08-27 2010-08-26 Composition hydrophobe contenant un polymère destinée à la lutte contre les ennemis des cultures

Country Status (1)

Country Link
WO (1) WO2011024135A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3011831A1 (fr) * 2014-10-20 2016-04-27 Agriphar S.A. Limonène : formulation et utilisation d'insecticide
WO2016199155A1 (fr) * 2015-06-10 2016-12-15 Future Tense Technological Development & Entrepreneurship Ltd Alcools éthoxylés, leur application et leur utilisation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828835A (en) * 1986-06-05 1989-05-09 The Dow Chemical Company Emulsifiable polymer concentrate
US5223543A (en) * 1992-10-19 1993-06-29 Claudia Iovino Reduction in polystyrene with activated agent
US6441051B1 (en) * 2001-09-20 2002-08-27 William B. Wheeler Insect eradicator and method
US6797684B2 (en) * 2002-03-11 2004-09-28 Vertec Biosolvents, Inc. Biosolvent composition of lactate ester and D-limonene with improved cleaning and solvating properties

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3011831A1 (fr) * 2014-10-20 2016-04-27 Agriphar S.A. Limonène : formulation et utilisation d'insecticide
WO2016062718A1 (fr) * 2014-10-20 2016-04-28 Agriphar S.A. Limonène : formulation et utilisation d'insecticide
AU2015335025B2 (en) * 2014-10-20 2018-03-22 Arysta Lifescience Benelux Sprl Limonene formulation and insecticide use
EP3011831B1 (fr) 2014-10-20 2018-04-25 Arysta LifeScience Benelux Sprl Limonène : formulation et utilisation d'insecticide
US11109587B2 (en) 2014-10-20 2021-09-07 Arysta Lifescience Benelux Sprl Limonene: formulation and insecticide use
EP3011831B2 (fr) † 2014-10-20 2022-12-21 Arysta LifeScience Benelux Sprl Limonène : formulation et utilisation d'insecticide
WO2016199155A1 (fr) * 2015-06-10 2016-12-15 Future Tense Technological Development & Entrepreneurship Ltd Alcools éthoxylés, leur application et leur utilisation
GB2554003A (en) * 2015-06-10 2018-03-21 Future Tense Tech Development & Enterpreneurship Ltd Some alcohol ethoxyles, their application and use

Also Published As

Publication number Publication date
WO2011024135A3 (fr) 2011-06-16

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