Drug – bio-affecting and body treating compositions – Plant material or plant extract of undetermined constitution... – Containing or obtained from eucalypti
Reexamination Certificate
2000-06-29
2001-06-26
Tate, Christopher R. (Department: 1651)
Drug, bio-affecting and body treating compositions
Plant material or plant extract of undetermined constitution...
Containing or obtained from eucalypti
C424S405000, C424S409000
Reexamination Certificate
active
06251440
ABSTRACT:
The present invention is concerned with a pesticidal composition, and in particular with a pesticidal composition which may be used as an insecticide and/or a larvicide against, for example, ectoparasites, a major component of said composition comprising natural or essential oils.
Insects and their larvae are common pests of households, animals, crops, meat and poultry houses and the like. Typically, to eradicate such insect pests synthetically produced chemical pesticides are used. These compounds are generally highly toxic to mammals and plants and are often very slow to degrade making them unsuitable for wide spread application.
Examples of compounds which have previously been used for eradicating insects and their larvae include organophosphates which, although generally not as toxic as synthetic non-organsphosphates, still exhibit relatively high toxicity levels. They are, however, of limited use against some pests. For example, the larvae of the poultry house beetle are notoriously difficult to kill and are relatively unaffected by such organophosphates.
Essential oils have been used previously for use as pesticides. U.S. Pat. No. 4,587,123 discloses that eucalyptus oil is applied as a pesticide in a composition which includes a low molecular weight carbon content alcohol miscible with water. GB 1467 419 also discloses the use of eucalyptus oil as an insecticide in admixture with an extract of pepper. The compositions disclosed in these documents generally do not possess broad spectrum insecticidal or larvicidal activity.
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Chemical Abstracts, Oct. 13, 1986, Ahmed, S.M. et al., “Vapor toxicity and repellency of some essential oils to insects pests”, XP002089702.
Morris Sandra
Ryan Robert Eugene
Bacon & Thomas
Barrier Biotech Limited
Tate Christopher R.
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