Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2000-09-27
2002-11-26
Robinson, Allen J. (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
06486157
ABSTRACT:
This application is a 371 of PCT/EP99/00184, filed Jan. 14, 1999
The present invention relates to a novel method of controlling pests in and on transgenic crops of useful plants with pymetrozine; profenofos; a benzoylurea-derivative, especially lufenuron; or a carbamat-derivative, especially fenoxycarb.
Certain pest control methods are proposed in the literature. However, these methods are not fully satisfactory in the field of pest control, which is why there is a demand for providing further methods for controlling and combating pests, in particular insects and repre-sentatives of the order Acarina, or for protecting plants, especially crop plants. This object is achieved according to the invention by providing the present method.
The present invention therefore relates to a method of controlling pests in crops of transgenic useful plants, such as, for example, in crops of maize, cereals, soya beans, tomatoes, cotton, potatoes, rice and mustard, characterized in that a pesticidal composition comprising pymetrozine; profenofos; a benzoylurea-derivative, especially lufenuron; or a carbamat-derivative, especially fenoxycarb, in free form or in agrochemically useful salt form and at least one auxiliary is applied to the pests or their environment, in particular to the crop plant itself; to the use of the composition in question and to propagation material of transgenic plants which has been treated with it.
Surprisingly, it has now emerged that the use of pymetrozine; profenofos; a benzoylurea-derivative, especially lufenuraon; or a carbamat-derivative, especially fenoxycarb, for controlling pests on transgenic useful plants which contain—for instance—one or more genes expressing a pesticidally, particularly insecticidally, acaricidally, nematocidally or fugicidally active ingredient, or which are tolerant against herbicides or resistent against the attack of fungi, has a synergistic effect. It is highly surprising that the use of pymetrozine; profenofos; a benzoylurea-derivative, or a carbamat-derivative in combination with a transgenic plant exceeds the additive effect, to be expected in principle, on the pests to be controlled and thus extends the range of action of the said active ingredients and of the active principle expressed by the transgenic plant in particular in two respects:
In particular, it has been found, surprisingly, that within the scope of invention the pesticidal activity of a active ingredient according to the invention in combination with the effect expressed by the transgenic useful plant, is not only additive in comparison with the pesticidal activities of the active ingredient according to the invention alone and of the transgenic crop plant alone, as can generally be expected, but that a synergistic effect is present. The term “synergistic”, however, is in no way to be understood in this connection as being restricted to the pesticidal activity, but the term also refers to other advantageous properties of the method according to the invention compared with the active ingredient according to the invention and the transgenic useful plant alone. Examples of such advantageous properties which may be mentioned are: extension of the pesticidal spectrum of action to other pests, for example to resistant strains; reduction in the application rate of the active ingredient according to the invention, or sufficient control of the pests with the aid of the compositions according to the invention even at an application rate of the active ingredient according to the invention alone and the transgenic useful plant alone are entirely ineffective; enhanced crop safety; improved quality of produce such as higher content of nutrient or oil, better fiber quality, enhanced shelf life, reduced content of toxic products such as mycotoxins, reduced content of residues or unfavorable constituents of any kind or better digestability; improved tolerance to unfavorable temperatures, draughts or salt content of water; enhanced assimilation rates such as nutrient uptake, water uptake and photosynthesis; favorable crop properties such as altered leaf aerea, reduced vegetative growth, increased yields, favorable seed shape/seed thickness or germination properties, altered colonialisation by saprophytes or epiphytes, reduction of senescense, improved phytoalexin production, improved of accelerated ripening, flower set increase, reduced boll fall and shattering, better attraction to beneficials and predators, increased pollination, reduced attraction to birds; or other advantages known to those skilled in the art. pymetrozine, 2,3,4,5-Tetrahydro-3-oxo-4-[(pyridin-3-yl)-methylenamino]-6-methyl-1,2,4-triazin, is known from The Pesticide Manual, 10
th
Ed. (1994), The British Crop Protection Council, London, page 868.
The active ingredients used according to the invention are know to those skilled in the art, specifically:
Carbamates are known for instance from EP-A-004334. Fenoxycarb, Ethyl 2-(4-Phenoxyphenoxy)ethylcarbamat, is known from The Pesticide Manual, 9
th
Ed. (1991), The British Crop Protection Council, London, page 375;
Benzoylureas are known for instance from EP-A-179022; lufenuron is known from The Pesticide Manual, 10
th
Ed. (1994), The British Crop Protection Council, London, page 628; and
Profenofos, O-4-Brom-2-chlorphenyl O-Ethyl S-Propyl Phosphorothioat, is known from The Pesticide Manual, 9
th
Ed. (1991), The British Crop Protection Council, London, page 705.
The agrochemically compatible salts of the active ingredients according to the invention are, for example, acid addition salts of inorganic and organic acids, in particular of hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, perchloric acid, phosphoric acid, formic acid, acetic acid, trifluoroacetic acid, oxalic acid, malonic acid, toluenesulfonic acid or benzoic acid. Preferred within the scope of the present invention is a composition known per se which comprises, as active ingredient, pymetrozine, profenofos, lufenuron or fenoxacarb; each in the free form.
The transgenic plants used according to the invention are plants, or propagation material thereof, which are transformed by means of recombinant DNA technology in such a way that they are—for instance—capable of synthesizing selectively acting toxins as are known, for example, from toxin-producinginvertebrates, especially of the phylum Arthropoda, as can be obtained from Bacillus thuringiensis strains; or as are known from plants, such as lectins; or in the alternative capable of expressing a herbicidal or fungicidal resistance. Examples of such toxins, or transgenic plants which are capable of synthesizing such toxins, have been disclosed, for example, in EP-A-0 374 753, WO 93/07278, WO 95/34656, EP-A-0 427 529 and EP-A-451 878 and are incorporated by reference in the present application.
The methods for generating such transgenic plants are widely known to those skilled in the art and described, for example, in the publications mentioned above.
The toxins which can be expressed by such transgenic plants include, for example, toxins, such as proteins which have insecticidal properties and which are expressed by transgenic plants, for example Bacillus cereus proteins or Bacillus popliae proteins; or Bacillus thuringiensis endotoxins (B.t.), such as CryIA(a), CryIA(b), CryIA(c), CryIIA, CryIIIA, CryIIIB2 or CytA; VIP1; VIP2; VIP3; or insecticidal proteins of bacteria colonising nematodes like Photorhabdus spp or Xenorhabdus spp such as Photorhabdus luminescens, Xenorhabdus nematophilus etc.; proteinase inhibitors, such as trypsin inhibitors, serine protease inhibitors, patatin, cystatin, papain inhibitors; ribosome-inactivating proteins (RIP), such as ricin, maize RIP, abrin, luffin, saporin or bryodin; plant lectins such as pea lectins, barley lectins or snowdrop lectins; or agglutinins; toxins produced by animals, such as scorpion toxins, spider venoms, wasp venoms and other insect-specific neurotoxins; steroid metabolism enzymes, such as 3-hydroxysteroid oxidase, ecdysteroid UDP-glycosyl transferase, cholesterol oxidases, ecdysone
Allen Rose M.
Robinson Allen J.
Syngenta Crop Protection Inc.
Teoli, Jr. William A.
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