Insecticidal and insect-repellant methods and compositions
OwnerLarry K. Coleinventor
Life of this patent
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Abstract
Citral is an effective insecticide, nematocide, and insect-repellant. At 1 ppm. it kills 100% of adult moths in two hours. At 0.2% concentration in housefly growth media, it prevents flies from laying eggs. At 0.02% concentration in soil, it reduces the nematode population 99.5%.
Claims6
A method of killing dipterous and lepidopterous insects which comprises applying to said insects or habitat thereof citral vapors at concentrations of about 1 to 20 ppm. in air.
A method of inhibiting the development of house flies which comprises applying to the eggs or larvae thereof a growth-inhibiting amount of citral by adding the citral to a concentration of about 0.4% in the medium in which the eggs or larvae are living.
A method of inhibiting the oviposition of adult female house flies which comprises applying an amount of citral sufficient to repel the flies, to a concentration of about 0.2%, to the medium eliciting the ovipositional response.
A method of inhibiting the feeding of the larvae of moths which comprises applying to the larvae 0.03 to 0.1 microliter of citral per larva.
A method of killing the larve of mosquitoes which comprises adding a lethal amount of citral to the water in which they are living.
A method of killing plant pathogenic nematodes which comprises applying citral to the nematodes at a concentration of about 0.2% in the soil surrounding the nematodes.
Dependencies are inferred from the claim text.