Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Elemental sulfur or compound thereof
Patent
1998-03-17
2000-07-18
Pak, John
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Elemental sulfur or compound thereof
424703, 424705, 424714, 424409, 424417, 424489, 424490, 514521, 514522, 514531, 514721, 514951, 514952, 504119, A01N 5902, A01N 5300, A01N 5302, A01N 5306, A01N 2514
Patent
active
060904151
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to pesticides which comprise an active ingredient combination composed of
It has been disclosed to use sulfur as a pesticide, mainly as a fungicide, but also, for example, as an acaricide. It has furthermore been disclosed to use pyrethroids as insecticides and acaricides. It has furthermore been disclosed to employ sulfur as a pesticide in combination with an insecticide, eg. parathion-methyl, or a pyrethroid, such as cypermethrin or deltamethrin (The Pesticide Manual, 10th Edition, p. 934, p. 260, p.288).
However, the prior-art compositions and their formulations are not yet satisfactory since in some cases their crop protection action is insufficient, or because their formulation, eg. a wettable powder, may result in a hazard to the user, eg. skin irritations, due to the danger of dust formation, or because the dispersibility of such powders is poor and can result in lump formation in the spray tanks.
It is an object of the present invention to find mixtures and formulations with which pests such as insects or arachnids can be controlled more advantageously and which additionally show advantages upon use on the basis of their formulation and which have an improved activity against pests combined with a reduced total amount of active ingredient applied (synergistic mixture).
We have found that this object is achieved by the compositions defined at the outset. It has furthermore been found that better control of the pests is possible by using the active ingredient combination of a) and b) than with the individual compounds.
The pesticides according to the invention are suitable for effecting efficient control of pests, in particular from the classes of the insects and arachnids. The compositions according to the invention are applied particularly advantageously for controlling pests which are little exposed to customary spray applications due to their habit of mainly occurring in poorly accessible locations, such as along the archis of leaves or in primordial buds, flowers, fruit and leaves before their development, so that the activity of the conventionally employed insecticides is frequently only insufficient. In contrast, the pesticides according to the invention have a flushing effect on these hiding target pests and thus on their increased exposure, which results in more successful control.
Component a) for the pesticides according to the invention is formed by sulfur spray granules. In general, sulfur melt spray granules and sulfur spray granules made of suspended sulfur are used as sulfur spray granules.
Sulfur melt spray granules are obtained for example by melting elemental sulfur, eg. sulfur powder, by heating to temperatures of above 120.degree. C. and spraying the resulting melt in a suitable spraying apparatus, eg. a spray tower, if desired after adding wetting agents and dispersants, generally with cooling, to form the sulfur spray granules.
Examples of wetting agents and dispersants are: ether acetate, isotridecyl alcohol and fatty alcohol polyoxyethylene ether, polyoxyethylene ether, acids, eg. ligno-, phenol-, naphthalene- and dibutylnaphthalenesulfonic acids, alkylsulfonic acids, alkylarylsulfonic acids, alkylsulfuric acids, lauryl ether sulfonic acids and fatty alcohol sulfuric acids, fatty acids, sulfated hexa-, hepta- and octadecanols and fatty alcohol glycol ethers, formaldehyde, methylcellulose.
Sulfur spray granules of suspended sulfur are obtained for example in such a way that a sulfur suspension is first prepared, expediently in such a way that elemental sulfur, eg. sulfur powder, is suspended in water, expediently with an addition of wetting agents and dispersants with or without the addition of a binder. The sulfur suspension is preferably comminuted in ball mills or stirred ball mills using a grinding medium, for example a grinding medium made of glass or other mineral or metallic grinding medium, in a size of 0.1-30 mm, preferably 0.6-2 mm, until the average particle size is markedly below 10 .mu.m. Suitable wetting agents and dispersants are, f
REFERENCES:
patent: 5788896 (1998-08-01), Bertram et al.
The Pesticide manual, 10.sup.th Ed. pp. 260, 288 (1994).
Brockel Ulrich
Harries Volker
Jager Karl-Friedrich
Kiessling Ulrich
Kleinbach Eberhard
BASF - Aktiengesellschaft
Pak John
LandOfFree
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