Sprayable insecticidal compositions having enhanced efficacy
View Patent ↗There is provided a sprayable insecticidal composition having significantly increased efficacy which comprises an effective amount of an insecticide; an abrasive; a low level of a surfactant; an inert carrier; and optionally a film-forming inhibitor.
1. A non-aqueous sprayable insecticidal composition which comprises
from 10 to 70% by weight of at least one insecticide;
from about 3% to about 9% by weight of an abrasive selected from the group consisting of alkali metal silicates and alkaline earth metal silicates;
from about 2% to about 15% by weight of a surfactant;
from 25 to 75% by weight of a solid inert carrier; and
an effective amount of an agent to inhibit the formation of a film,
wherein the weight percentages are based on the total weight of the non-aqueous sprayable insecticidal composition, and wherein the agent to inhibit the formation of a film is an alkali metal halide or an alkaline earth metal halide.
2. The composition defined in claim 1 , wherein the agent to inhibit the formation of a film is present in from 1 to 6% by weight of the composition.
3. The composition defined in claim 1 , wherein the inert carrier is kaolin clay.
4. The composition defined in claim 1 , wherein the abrasive is calcium silicate.
5. The composition defined in claim 4 , wherein the calcium silicate is present in from 5 to 7% by weight of the composition.
6. The composition defined in claim 1 , wherein the surfactant is present in form 2 to 7% by weight of the composition.
7. The composition defined in claim 1 , which comprises
from 10 to 30% by weight of the at least one insecticide;
from about 2% to about 7% by weight of the surfactant; and
from 55 to 75% by weight of the solid inert carrier.
8. The composition defined in claim 7 , wherein the insecticide is selected from insecticides effective against crawling insect pests.
9. The composition defined in claim 8 , wherein the crawling insect pests are selected from the group consisting of cockroaches, ants, crickets, silverfish, earwigs, flour beetles, termites and wood-boring beetles.
10. The composition defined in claim 1 , which comprises
from 10 to 30% by weight of the at least one insecticide;
from about 2% to about 7% by weight of the surfactant;
from 55 to 75% by weight of the solid inert carrier; and
from 1 to 6% by weight of the agent to inhibit the formation of a film.
11. The composition defined in claim 10 , wherein the insecticide is selected from insecticides effective against crawling insect pests.
12. The composition defined in claim 11 , wherein the crawling insect pests are selected from the group consisting of cockroaches, ants, crickets, silverfish, earwig, flour beetles, termites and wood-boring beetles.
13. The composition defined in claim 1 , which comprises
from 10 to 30% by weight of the at least one insecticide;
from about 3% to about 9% by weight of calcium silicate;
from about 2% to about 7% by weight of the surfactant;
from 55 to 75% by weight of kaolin clay; and
from 1 to 6% by weight of calcium chloride.
14. The composition defined in claim 13 , wherein the insecticide is selected from insecticides effective against crawling insect pests.
15. The composition defined in claim 14 , wherein the crawling insect pests are selected from the group consisting of cockroaches, ants, crickets, silverfish, earwig, flour beetles, termites and wood-boring beetles.
16. The composition defined in claim 1 , wherein the insecticide is selected from insecticides effective against crawling insect pests.
17. The composition defined in claim 1 , wherein the crawling insect pests are selected from the group consisting of cockroaches, ants, crickets, silverfish, earwigs, flour beetles, termites and wood-boring beetles.