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
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom

Definitions

• the subject of the present invention is a method for controlling a population of social insects, especially ants, wasps and cockroaches (or Blatta spp.) It is often very desirable to combat the drawbacks caused by populations of social insects such as ants or wasps or cockroaches (or Blatta spp.), especially in the case of ant populations.
• Social insects are insects which live in a large society, or in a colony comprising a large number of such insects or congeners.
• the control of ants is also desirable as regards the cultivation of fruit trees and/or ornamental trees.
• the reason for this is that certain species of ant provide a role of defending aphids against their predators and thus contribute towards maintaining high populations of aphids, which are harmful to the good health of the trees concerned and/or to fruit yields.
• the pharaoh ant (Monomorium pharaonis) may create anthills even inside living areas, which, in the case of blocks of flats and especially of hospitals, poses hygiene problems.
• the known methods moreover have the drawback that it is very difficult to treat all the individuals of the population, especially on account of the fact that, as regards ants, the anthills are fairly inaccessible, since they are generally located at a depth of several tens of centimeters below the surface of the ground.
• One aim of the present invention is to overcome these drawbacks.
• Another aim of the present invention is to ensure the destruction of the larvae present in the anthill, or more generally in the nest or dwelling place of the said social insects.
• Another aim of the present invention is to ensure the destruction of the laying females present in the anthill, or more generally in the nest or dwelling place of the said social insects.
• Another aim of the present invention is to propose a method which allows the definitive destruction of all or virtually all of a population of social insects such as ants or wasps or cockroaches (or Blatta spp.), preferably such as ants or cockroaches (or Blatta spp.).
• the subject of the present invention is thus a method for controlling a population of social insects such as ants or wasps or cockroaches (or Blatta spp.), characterized in that an effective amount of a composition comprising a bait and a compound of formula (I):
• R 1 is a halogen atom or a CN or methyl group
• R 2 is S(O) n R 3 ;
• R 3 is alkyl or haloalkyl
• R 4 represents a hydrogen or halogen atom; or a radical NR 5 R 6 , S(O) m R 7 , C(O)R 7 or C(O)O—R 7 , alkyl, haloalkyl or OR 8 , or a radical —N ⁇ C (R 9 ) (R 10 );
• R 5 and R 6 independently represent a hydrogen atom or an alkyl, haloalkyl, C(O) alkyl or S(O) r CF 3 radical; or R 5 and R 6 may together form a divalent alkylene radical which may be interrupted by one or two divalent hetero atoms, such as oxygen or sulphur;
• R 7 represents an alkyl or haloalkyl radical
• R 8 represents an alkyl or haloalkyl radical or a hydrogen atom
• R 9 represents an alkyl radical or a hydrogen atom
• R 10 represents a phenyl or heteroaryl group optionally substituted with one or more halogen atoms or groups such as OH, —O-alkyl, —S-alkyl, cyano or alkyl;
• R 11 and R 12 represent, independently of each other, a hydrogen or halogen atom
• R 13 represents a halogen atom or a haloalkyl, haloalkoxy, S(O) q CF 3 or SF 5 group;
• m, n, q and r represent, independently of each other, an integer equal to 0, 1 or 2;
• X represents a trivalent nitrogen atom or a radical C—R 12 , the other three valency positions of the carbon atom forming part of the aromatic ring;
• the alkyl radicals in the definition of formula (I) generally comprise from 1 to 6 carbon atoms.
• the ring formed by the divalent alkylene radical representing R 5 and R 6 , as well as by the nitrogen atom to which R 5 and R 6 are attached, is generally a 5-, 6-or 7-membered ring.
• a preferred class of compounds of formula (I) comprises the compounds where R 1 is CN and/or R 3 is haloalkyl and/or R 4 is NH 2 and/or R 11 and R 12 are, independently of one another, a halogen atom and/or R 13 is haloalkyl.
• Populations of ants are more especially preferred among the populations of social insects which may be controlled using the method according to the invention.
• control of a population of social insects such as ants, wasps or cockroaches is understood to mean the control of the said insects, and more particularly the total or virtually total destruction of the said population, in other words the destruction of more than 60%, preferably more than 70% and even more preferably of 95 to 100%, of the said population.
• An effective amount of the composition used in the method according to the invention is understood to mean an amount which is capable of controlling the whole population of social insects such as a population of ants or wasps or cockroaches (or Blatta spp.).
• the invention relates to a method for treating social insects such as ants, cockroaches or wasps with an effective amount of active material of formula (I), this effective amount of composition being an amount used equal to the dose required to destroy at least 90% of the minor fraction of the population of social insects to which the said composition is applied, within a period of between 2 and 30 days, preferably between 2 and 7 days.
• the minor fraction often corresponds in practice to the population living or circulating outside the common dwelling place or nest.
• the effective amount of composition used for the method according to the invention is generally such that the dose of compound of formula (I) is between 0.05 and 50 mg per anthill treated, preferably from 0.1 to 20 mg.
• This effective amount may be determined more precisely within this range by systematic tests, depending on the species of ant whose population it is desired to control, and also depending on the size and extent of the anthills which may vary according to the nature of these species.
• the invention thus also relates to a method for controlling social insects such as ants, wasps or cockroaches (but preferably cockroaches or Blatta spp.) which have a common dwelling place or nest in which they live with a substantial population of their congeners, the said method comprising a treatment with an effective dose, preferably a dose of between 0.0001 and 20 grams per 100 m 2 , of one or more areas frequented by, or assumed to be frequented by, the said social insects (preferably cockroaches), the said area being outside the place of the said common dwelling but being a place in which the cockroaches circulate or are assumed to circulate.
• an effective dose preferably a dose of between 0.0001 and 20 grams per 100 m 2
• the ants which may be controlled using the method according to the invention are especially:
• ants of the genus Lasius for example the black ant ( Lasius niger );
• the pavement ant Tetramorium caespitum
• fungal ants such as the ants of the genus Acromyrmex (for example the cassava ant) and the ants of the genus Atta.
• the cockroaches which may be treated by the method of the invention are mainly Blatella germanica, Blatella orientalis, Periplaneta americana, Periplaneta fuliginosa.
• the compound of formula (I) may be prepared according to one of the methods described in Patent Applications WO 87/3781, 93/6089, 94/21606, and EP 295,117 or alternatively by another method from within the general experience of those skilled in the art competent in chemical synthesis. This compound is also referred to in the remainder of the present text by the term active material.
• the bait employed in the composition used in the method according to the invention is a product which is sufficiently appetizing to incite social insects such as ants or wasps or cockroaches (or Blatta spp.) to eat it.
• this bait is chosen, for example, but not exclusively, from animal and/or plant proteins, or alternatively from fats, also of animal and/or plant origin, or even from mono-, oligo- or polyorganosaccharides, especially from sucrose, lactose, fructose, dextrose, glucose or even molasses or honey.
• the compound of formula (I) used in the invention is 5-amino-3-cyano-1-[2, 6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trifluoromethyl) sulphinyl]-1H-pyrazole.
• the minor fraction of the population to which the composition employed in the method according to the invention is applied is generally between 1 and 50% of the total population, preferably between 2 and 20%.
• the population of ants which may be controlled using the method according to the invention is a population of ants living in the same anthill.
• the minor fraction of the population to which the composition is applied generally consists of workers whose function is to collect food from outside the anthill, these being known as the harvester workers of the anthill.
• the ant or cockroach population which can be controlled by means of the method according to the invention is a population of cockroaches living in the same common dwelling place for cockroaches.
• the dose of compound of formula (I) in the composition used is between 0.0005 and 0.5%, preferably between 0.001 and 0.2%.
• the percentages corresponding to doses are, except where otherwise mentioned, weight/weight percentages.
• the dose of bait in the composition used is generally between 1 and 99%, preferably between 30 and 99%.
• the composition used may also comprise other additives such as a solvent for the active material, a flavouring, a preserving agent, a dye or a bitter agent.
• the composition by placing it in a closed bait-carrier box containing openings which are reserved, on account of their size, for the exclusive use of ants or Blatta spp., or insects of similar size, in an area where these insects are likely to be found.
• the area may especially be in a public or private place, such as a living area, or alternatively on a balcony, a patio, in a garden or in a field.
• This variant is of improved safety, since it concerns an active material which is liable to present a risk in the case of accidental contact or ingestion by pets or children.
• compound A is 5-amino-3-cyano-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trifluoromethyl)sulphinyl]-1H-pyrazole, referred to as compound A.
• a watch glass containing 10 g of a 0.05% dispersion of compound A in honey is placed 20 cm from the entrance to an active anthill.
• the ants are of the species Lasius niger, for which the fraction of workers whose function is to collect food is in the region of 10% of the total population.
• the total population is estimated by a count carried out on an untreated anthill, referred to as the control, containing 10,000 individuals.
• Tests are carried out on Blatella Germanica cockroaches in boxes 36 ⁇ 24 ⁇ 14 cm in size. These boxes comprise a source of water, a shelter consisting of piled pieces of cardboard, and additional food consisting of biscuit pieces.

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• 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)
• Catching Or Destruction (AREA)

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Citations (6)

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• 1996
  • 1996-01-29 FR FR9601238A patent/FR2735952B1/fr not_active Expired - Lifetime
  • 1996-06-26 US US08/981,795 patent/US20020042439A1/en not_active Abandoned
  • 1996-06-26 KR KR1019970709839A patent/KR100428232B1/ko not_active Expired - Lifetime
  • 1996-06-26 EA EA199800100A patent/EA002017B1/ru not_active IP Right Cessation
  • 1996-06-26 ES ES96924022T patent/ES2257750T3/es not_active Expired - Lifetime
  • 1996-06-26 BR BR9609465A patent/BR9609465A/pt not_active Application Discontinuation
  • 1996-06-26 AP APAP/P/1998/001186A patent/AP951A/en active
  • 1996-06-26 PT PT96924022T patent/PT836387E/pt unknown
  • 1996-06-26 DK DK96924022T patent/DK0836387T3/da active
  • 1996-06-26 CA CA002223822A patent/CA2223822C/fr not_active Expired - Lifetime
  • 1996-06-26 JP JP9504205A patent/JPH11508551A/ja active Pending
  • 1996-06-26 DE DE69636034T patent/DE69636034T2/de not_active Expired - Lifetime
  • 1996-06-26 AT AT96924022T patent/ATE322824T1/de active
  • 1996-06-26 AU AU64618/96A patent/AU710851B2/en not_active Expired
  • 1996-06-26 WO PCT/FR1996/000994 patent/WO1997001279A1/fr not_active Ceased
  • 1996-06-26 EP EP96924022A patent/EP0836387B1/fr not_active Expired - Lifetime
  • 1996-06-26 NZ NZ312722A patent/NZ312722A/xx not_active IP Right Cessation
  • 1996-06-26 CN CN96196221A patent/CN1102832C/zh not_active Expired - Lifetime
  • 1996-06-27 TW TW085107779A patent/TW349842B/zh active
  • 1996-06-28 MY MYPI96002669A patent/MY114788A/en unknown
  • 1996-06-28 AR ARP960103384A patent/AR002646A1/es active IP Right Grant
  • 1996-07-02 CO CO96034470A patent/CO4750583A1/es unknown
• 1998
  • 1998-01-07 MX MX9800139A patent/MX9800139A/es active IP Right Grant
• 2002
  • 2002-02-25 CN CNB021053596A patent/CN1204810C/zh not_active Expired - Lifetime
• 2003
  • 2003-03-12 US US10/386,908 patent/US7138422B2/en not_active Expired - Fee Related

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