Claims
- 1. A pesticidal composition in particulate form which comprises composite particles having an average particle size in the range of from 1 to 100 μm, each particle comprisinga core of an inert substrate having a first pesticide associated therewith, a coating of an electrically resistive material around said core, and a second pesticide adhered to the coating of electrically resistive material, the particles carrying an electrostatic charge.
- 2. A composition according to claim 1 wherein the particles have an average particle size in the range of from 20 to 60 μm.
- 3. A composition according to claim 1 wherein the inert substrate comprises silica, magnesium silicate, diatomaceous earth, cellulose or a natural or synthetic polymer.
- 4. A composition according to claim 1 wherein the first pesticide is an insecticide, fungicide, acaricide, insect growth regulator or chemosterilant.
- 5. A composition according to claim 1 wherein the first pesticide is a bacterium, virus or fungus.
- 6. A composition according to claim 1 wherein the first pesticide is a behaviour modifying chemical.
- 7. A composition according to claim 1 wherein the first pesticide comprises at least 0.1% by weight of the core of the particles.
- 8. A composition as claimed in claim 1 wherein the electrically resistance coating material comprises from 5 to 25% by volume of the particles.
- 9. A composition as claimed in claim 8 wherein the coating comprises a wax, a lipid, a natural or synthetic resin or a natural or synthetic polymer.
- 10. A composition as claimed in claim 1 wherein the second pesticide comprises fungal spores.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9605203 |
Mar 1996 |
GB |
|
Parent Case Info
This application is a 371 of PCT/GB97/00683, filed Mar. 12, 1997, which claims priority of GB9605203.0, filed Mar. 12, 1996.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/GB97/00683 |
|
WO |
00 |
7/21/1998 |
7/21/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO97/33472 |
9/18/1997 |
WO |
A |
US Referenced Citations (6)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0018119 A1 |
Oct 1980 |
EP |
0529975 A1 |
Mar 1993 |
EP |
WO8300799 A1 |
Mar 1983 |
WO |
WO9400980 A1 |
Jan 1994 |
WO |
WO9707676 A1 |
Mar 1997 |
WO |
Non-Patent Literature Citations (1)
Entry |
Patent Abstracts of Japan, vol. 15, No. 60, C-805, abstract of JP,A,2-288803, (Nov. 28, 1990). |