56 results about "Helicoverpa armigera" patented technology

The invention relates to the field of insecticides, particularly to a medicinal plant insecticide and a preparation method thereof. The medicinal plant insecticide is prepared from, by weight part, 15-35 parts of tobacco extract, 10-30 parts of ginkgo leaf extract, 8-25 parts of sophora root extract, 8-25 parts of derris trifoliata extract, 30-35 parts of ternate pinellia extract, 0.5-1 part of emulsifier, 0.5-1 part of penetrant and 0.5-1 part of stabilizer. By taking tobacco, ginkgo leaves, sophora root, derris trifoliata and ternate pinellia as the principal raw materials and processing different raw materials, the prepared medicinal plant insecticide can achieve significant killing effects of higher than 80% on plutella xylostella, helicoverpa armigera, aphidoidea and spodoptera exigua.

The invention discloses a pesticide composition for preventing and controlling cotton field helicoverpa armigera and application thereof. According to the pesticide composition for preventing and controlling the cotton field helicoverpa armigera and the application thereof, after the compounding of glyphosate and an organosilicone additive, quick action, control effect and persistence period of prevention and removal of helicoverpa armigera host plant Abutilon theophrasti Medic. by the glyphosate are accelerated, wherein after the compounding use of 300, 400 and 500 times of the glyphosate with 1000 times of the silicone additive, the control effect reaches 85% or more in 5 days and reaches 100% in 28 days after the use of the pesticide composition, and is much higher than the single-agentcontrol effect of the glyphosate; after the compounding of emamectin benzoate and the organosilicone additive, quick action, control effect and persistence period of prevention and control of the helicoverpa armigera are improved, and pest insecticide resistance is delayed, wherein the control effect is increased by 20% in 48 hours after the use of the pesticide composition; and a ternary compounding composition of the glyphosate, the emamectin benzoate and the organosilicone additive plays a dual effect of prevention and control of the helicoverpa armigera and simultaneously prevention and removal of the cotton field helicoverpa armigera host plant Abutilon theophrasti Medic., and plays an effect of two-preventing by one-spraying with a reduced pesticide using amount, thereby reducing labor cost.