5 results about "ORDER HYMENOPTERA" patented technology

The invention provides a soil health evaluation method. The method comprises the following steps: acquiring community characteristics of soil arthropods of to-be-evaluated soil; the soil arthropods are selected from at least one of diptera arthropods, arthropods of arachnids, coleoptera arthropods, hymenoptera arthropods and lepidoptera arthropods; the community characteristics comprise species composition and relative abundance of species; predicting soil indexes according to the community characteristics; the soil index is selected from at least one of a soil physicochemical index, a soil degradation index and a soil health index; the soil physical and chemical indexes are soil pH, soil total carbon, soil organic carbon and soil total nitrogen; the soil degradation indexes comprise a soil pH degradation index, a soil total carbon degradation index, a soil organic carbon degradation index and a soil total nitrogen degradation index; the soil health index is determined based on soil pH, soil microbial biomass nitrogen, soil respiration rate, soil total carbon, soil organic carbon, soil total nitrogen and soil bulk density; and performing soil health evaluation based on the soil indexes.

The invention provides a repellent for natural enemy insects. The repellent comprises an active substance 2-ethyl-1-hexanol. The concentration of the active substance is at least 1 mu g / mu L; the active substance is derived from resource insect female mucilage gland secretions with a repelling effect on natural enemy insects, and the resource insect female mucilage gland secretions cover the self-oviposition surface of the resource insects. The invention also provides an application of the repellent. The repellent is used for repelling natural enemy insects with parasitic ability to non-adult resource insects. The natural enemy insects comprise hymenoptera insects; the resource insects comprise tussah, silkworms and castor silkworms. Applying the repellent of the natural enemy insects to the non-adult surfaces of the resource insects or to the growth environment of the resource insects. According to the invention, 2-ethyl-1-hexanol is used as an active substance to prevent parasitic wasps from parasitizing various resource insects, so that the technical purpose of effectively, safely and efficiently preventing and controlling the parasitic wasps is achieved, the economic benefit of the resource insects is improved, and the insecticide has the advantages of greenness, environmental protection and low toxicity.

The utility model discloses a hymenoptera insect field collecting device which comprises an insect filter bottle, a communicating pipe, an insect collector and a volatile medicine bottle, the insect filter bottle comprises a bottle body and a bottle cap which are detachably connected, and the bottle body is communicated with the insect collector through the hollow communicating pipe. The bottom end of the insect collector is detachably connected with the top of the volatile medicine, the insect collector is communicated with the internal space of the volatile medicine bottle, the top end of the insect collector is of a closed structure, and an alcoholic solution or an diethyl ether solution is placed in the volatile medicine bottle. According to the hymenoptera insect field collection device, the habit that hymenoptera insects fly upwards and towards light is utilized, meanwhile, the heating device is used in an auxiliary mode, the collection and separation efficiency of field insects is improved, and the device is simple and light in structure and convenient to carry and operate.

The application discloses a new crystal form of brofenvalerate, a preparation method and application thereof. The new crystal form of brofenvalerate comprises a powder X-ray diffraction spectrum expressed by 2θ±0.2° diffraction angle, and the powder X-ray diffraction spectrum shows characteristic peaks at 8.70, 9.94, 11.24, 12.24, 22.38 and 24.70. Compared with the existing crystal form of brofenvalerate, the new crystal form of brofenvalerate discovered by the application has a simple preparation method, more excellent properties and higher biological activity, and can be used for the prevention and control of pests of the orders Lepidoptera, Hemiptera, Coleoptera, Thysanoptera, Hymenoptera, Acarina and Diptera.

This invention relates to the preparation and use of a phenylpyrazole derivative. Specifically, this invention relates to an N-substituted phenylpyrazole derivative of formula (I) or its isotopically labeled compound, or its optical isomers, geometric isomers, tautomers, or mixtures of isomers, or its agronomically acceptable salt, and the use of said compound in the preparation of insecticides for pest control. Such compounds can achieve better pest control effects at lower dosages, particularly against pests of the orders Lepidoptera, Coleoptera, Homoptera, Hemiptera, Thysanoptera, Isoptera, Diptera, Hymenoptera, Trichophyton, Pseudocoptera, Orthoptera, Blattodea, Silicaria, Acari, and Nematodes.