5 results about "Helicoverpa armigera" patented technology

The present invention relates to an insecticidal composition comprising of N-(phenylthio) phthalimide (NPP), neem oil and chitosan and method of preparation thereof. The composition of the present invention is useful against insects selected from Helicoverpa armigera, Mythimna separata, Spodoptera frugiperda and other Lepidopteran species of insects. The composition can serve as a formulation that possesses a lower probability of acquiring resistance.

The application discloses an extract of Marchantia paleacea with insect antifeedant activity, a preparation method and application thereof, and belongs to the field of pest repellents. Radula complanata The application carries out research on insect antifeedant activity of Marchantia paleacea, extracts by heating and refluxing, extracts by different polar solvents, obtains petroleum ether phase, ethyl acetate phase, n-butanol phase and water phase, and carries out screening on the antifeedant activity by using Plutella xylostella and Helicoverpa armigera, researches show that each phase extract of Marchantia paleacea contains insect antifeedant activity, especially the petroleum ether phase and the ethyl acetate phase have the highest antifeedant activity on Plutella xylostella, and a new idea is provided for biological control.

The application relates to the technical field of pesticide chemistry, and discloses a phenyl isoxazole derivative containing a triazole ring as well as a preparation method and application thereof. The phenyl isoxazole derivative containing the triazole ring has the structural formula: The phenyl isoxazole derivative containing the triazole ring provided by the application has good insecticidal activity on agricultural pests such as Plutella xylostella, Spodoptera frugiperda, Helicoverpa armigera, Ostrinia nubilalis, and aphids when the concentration is 50 mu g / mL. Therefore, the phenyl isoxazole derivative containing the triazole ring provided by the application can be applied to the prevention and control of agricultural pests as an active pesticide ingredient.

The invention discloses bacillus YB87 and application thereof, and belongs to the technical field of insecticides. The invention provides bacillus with lepidoptera pest killing resistance. The bacillus mainly has insecticidal activity on resistant diamondback moth second-instar larvae, beet armyworm second-instar larvae, prodenia litura second-instar larvae, resistant rice-stem borer second-instar larvae and cotton bollworm second-instar larvae. The strain is collected from soil in high mountainous areas in Yunnan province, is named as bacillus YB87, is preserved in China General Microbiological Culture Collection Center (CGMCC) on March 17, 2025, and has a preservation number of CGMCC NO.33854. Insect bodies treated by the bacillus YB87 crystal protein are rigid and dead, which indicates that the bacillus YB87 crystal protein has a strong lethal effect on resistant plutella xylostella, prodenia litura, beet armyworm, resistant rice-stem borer and cotton bollworm larvae.

The invention belongs to the technical field of pesticides, and particularly relates to a fused heterocyclic compound, a preparation method thereof, an insecticidal composition and application. The compound is shown as a general formula I, Q1 and Q2 independently represent N or CR8 respectively, and Q1 and Q2 are not N at the same time; q3 represents O or NR9; q4 represents O, S or CR10R11; r5 represents-S (O) nR21; r1, R2, R3, R4, R6, R7, R8, R10, and R11 each independently represent hydrogen, halogen, an alkyl group, or the like; r9 represents hydrogen, an alkyl group, a haloalkyl group, an alkenyl group, or the like; the compound has excellent prevention and treatment effects on spodoptera frugiperda, armyworm, prodenia litura, brown planthopper, rhopalosiphum padi and the like.