Microparticles containing agricultural active ingredients

Details Microparticles containing agricultural active ingredients Microparticles containing agricultural active ingredients

A - Human Necessities

01

N

A01N 43/653 (2006.01) A01N 25/10 (2006.01) A01P 3/00 (2006.01)

Patent

CA 2294332

One or more agricultural active ingredients (such as fungicides or insecticides) are entrapped in polymeric matrixes to form microparticles having a diameter in the range from about 0.2 to about 200 microns. The microparticles are applied to soil, to seeds, or to plants and release the active ingredient(s) at a rate sufficiently low to avoid phytoxicity but at a rate sufficiently high to provide effective amounts of the active ingredient(s), preferably throughout the growing period of the plant.

Un ou plusieurs principes actifs agricoles (tels des fongicides ou des insecticides) sont inclus dans des matrices polymères pour former des microparticules présentant un diamètre de l'ordre d'environ 0,2 à environ 200 microns. Les microparticules sont appliquées au sol, à des semences ou à des plantes, et libèrent le(s) principe(s) actif(s) à une vitesse suffisamment lente pour permettre d'éviter une phytotoxicité, mais suffisamment rapide pour fournir des quantités efficaces du(des) principe(s) actif(s), de préférence tout au long de la période de croissance de la plante.

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