摘要:
Insecticide formulations having improved chemical and physical stability and related methods are disclosed. The insecticide formulations may include a plurality of microcapsules, each including at least one organophosphate insecticide (e.g., chlorpyrifos-methyl) at least partially surrounded by a polymer shell. The insecticide formulations may be used to control insect populations by singular or periodic applications. The microcapsule polymer shell of the insecticide formulations may be formed by combining a cross-linking amine and a hydrophobic monomer (e.g., an isocyanate) at a molar ratio of amine to isocyanate groups of less than about 1:1.
摘要:
Insecticide formulations having improved chemical and physical stability and related methods are disclosed. The insecticide formulations may include a plurality of microcapsules, each including at least one organophosphate insecticide (e.g., chlorpyrifos-methyl) at least partially surrounded by a polymer shell. The insecticide formulations may be used to control insect populations by singular or periodic applications. The microcapsule polymer shell of the insecticide formulations may be formed by combining a cross-linking amine and a hydrophobic monomer (e.g., an isocyanate) at a molar ratio of amine to isocyanate groups of less than about 1:1.
摘要:
Various microencapsulated insecticide formulations for the control of pests such as aphids and beet army worm. These formulations exhibit excellent knockdown activity towards both chewing and non-chewing pests as LD50 values for toxicity in female rats in the range of about 2,500 mgKg−1. Some of these formulations include a wall comprised of a polymer formed, for example, by an interfacial polycondensation of a water soluble monomer and a water insoluble monomer, which at least partially surround an organophosphate insecticide. In some aspects the organophosphate in the microcapsule is chlorpyrifos. The microcapsule have a diameter in the range of about 2 to about 25 micron and the wall has a thickness in the range of about 5 to about 25 nanometers.
摘要:
Pest controlling compositions exhibiting enhanced pesticidal activity levels are disclosed. In one embodiment, a composition includes at least one pesticide, at least one transition metal salt and at least one proteinaceous material. In this embodiment, the composition exhibits enhanced pesticidal activity levels compared to a composition dissimilar only in not having the at least one transition metal salt and the at least one proteinaceous material.
摘要:
Pest controlling compositions exhibiting enhanced pesticidal activity levels and methods for preparing the same are disclosed. In one embodiment, a method includes providing a liquid composition that includes at least one pesticide and at least one co-ingredient that enhances pesticidal activity of the composition compared to a composition dissimilar only in not having the at least one co-ingredient. The at least one co-ingredient may include at least one metal oxide, a combination of at least one transition metal salt and at least one proteinaceous material or a combination of at least one proteinaceous material and at least one polymeric material. The method further includes spray drying the liquid composition to provide a solid composition. In one aspect of this embodiment, the solid composition provided by the spray drying exhibits enhanced pesticidal activity compared to the liquid composition.
摘要:
Various microencapsulated insecticide formulations for the control of pests such as aphids and beet army worm. These formulations exhibit excellent knockdown activity towards both chewing and non-chewing pests as LD50 values for toxicity in female rats in the range of about 2,500 mgKg−1. Some of these formulations include a wall comprised of a polymer formed, for example, by an interfacial polycondensation of a water soluble monomer and a water insoluble monomer, which at least partially surround an organophosphate insecticide. In some aspects the organophosphate in the microcapsule is chlorpyrifos. The microcapsule have a diameter in the range of about 2 to about 25 micron and the wall has a thickness in the range of about 5 to about 25 nanometers.
摘要:
Pest controlling compositions exhibiting enhanced pesticidal activity levels are disclosed. In one embodiment, a composition includes at least one pesticide, at least one transition metal salt and at least one proteinaceous material. In this embodiment, the composition exhibits enhanced pesticidal activity levels compared to a composition dissimilar only in not having the at least one transition metal salt and the at least one proteinaceous material.
摘要:
Pest controlling compositions exhibiting enhanced pesticidal activity levels are disclosed. In one embodiment, a composition includes at least one pesticide, at least one proteinaceous material and at least one polymeric material. In this embodiment, the composition exhibits enhanced pesticidal activity levels compared to a composition dissimilar only in not having the at least one proteinaceous material and the at least one polymeric material. Still, alternative embodiment pesticide compositions exhibiting enhanced activity levels are disclosed.
摘要:
Pest controlling compositions exhibiting enhanced pesticidal activity levels are disclosed. In one embodiment, a composition includes at least one pesticide, at least one proteinaceous material and at least one polymeric material. In this embodiment, the composition exhibits enhanced pesticidal activity levels compared to a composition dissimilar only in not having the at least one proteinaceous material and the at least one polymeric material. Still, alternative embodiment pesticide compositions exhibiting enhanced activity levels are disclosed.