Formulations of bifenthrin and enriched cypermethrin
View Patent ↗The present invention is directed to novel insecticidal compositions comprising bifenthrin and enriched cypermethrin, the compositions are physically stable when diluted with water.
1. An insecticidal composition comprising:
a) bifenthrin and zeta-cypermethrin present in a ratio of from 1/4 to 4/1 and in a total concentration of from 0.05% to 30%;
b) an aromatic solvent present in a concentration of from 40% to 55%;
c) acetic acid present in a concentration of from 0.01% to 0.15%;
d) severely solvent refined light and heavy paraffinic petroleum oil in a concentration of from 20% to 30%;
e) a surfactant blend consisting of:
a. alkylbenzene sulfonate salt in a concentration of from 1.5% to 4.5%;
b. ethoxylated castor oil in a concentration of from 1.5% to 4.5%; and
c. polyethylene glycol fatty acid ester present in a concentration of from 0.10% to 0.60%;
wherein all % are % by weight based on the total weight.
2. A method for controlling insects comprising applying the composition of claim 1 to a locus where insects are present or are expected to be present.
3. A composition of claim 1 further comprising at least one additional component selected from an anti-freeze agent, an antifoam agent and a biocide.