Claims
- 1. An insecticidal or nematicidal granule consisting essentially of particles of an inert carrier impregnated or coated with an effective amount of oxamyl and coated or impregnated with a barrier material, said barrier material having a water absorption rate of no greater than about 0.2% when measured for 1/8" specimen in water at 73.4.degree. F. for 24 hours, and said granule being capable of releasing oxamyl in water at 20.degree. C. at a rate of no more than 80% in 4 hours, said barrier material consisting essentially of paraffin wax admixed with up to about 50% of a modifier or combination of modifiers selected from low molecular weight oxidized polyethylenes, ethylene copolymers containing up to about 40% of vinyl acetate comonomer and polyterpenes.
- 2. The composition of claim 1 where the modifier is a low molecular weight oxidized polyethylene.
- 3. The composition of claim 1 where the modifier is an ethylene copolymer containing up to about 40% of vinyl acetate comonomer.
- 4. The composition of claim 1 where the modifier is a polyterpene.
- 5. The composition of any of claims 1 to 4 where the paraffin wax is admixed with about 25 to 50% of a modifier or combination of modifiers.
- 6. The composition of claim 2 where the paraffin wax and the low molecular weight oxidized polyethylene are present in a weight ratio of approximately 1:1.
- 7. The composition of claim 1 where the inert carrier is fused attapulgite.
- 8. The composition of claim 1 which contains about 4 to 30% by weight of barrier material.
- 9. The composition of claim 8 which contains about 20% by weight of barrier material.
RELATED APPLICATIONS
This application is a continuation-in-part of my copending application U.S. Ser. No. 114,729, filed Feb. 7, 1980, which is in turn a continuation-in-part of application U.S. Ser. No. 018,528, filed Mar. 8, 1979, both are now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
846785 |
Jul 1970 |
CAX |
1542449 |
Mar 1979 |
GBX |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
114729 |
Feb 1980 |
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Parent |
18528 |
Mar 1979 |
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