244 results about "Permethrin" patented technology

The invention discloses an organic tobacco field planting and field managing method, which comprises the following steps: preparing land and ridging, transplanting tobacco seedlings, applying fertilizer in fields, performing field management and pest control, and harvesting manually, wherein the section of a ridge is ladder-shaped, the ridge spacing is 100-120cm, the ridge height is 20-25cm, drainage ditches are formed according to the height of terrain, the tobacco seedlings are transplanted with the plant spacing of 45-55cm, watered with enough water, covered with soil, and covered with a mulching film, and the mulching film is broken to expose the seedlings, base fertilizer is applied before ridging and during the transplanting and topdressing is applied after the transplanting, the field management comprises seedling deficiency check and seedling supplementation, film removal, earthing up, water replenishing, topping, leaf retention and sprout removal, and the pest control comprises comprehensive control and chemical control. According to the organic tobacco plantation and management requirements, organic fertilizer is adopted, and a harmless medicament or biological agent is used for the pest control, so that the organic production of the tobacco is realized. Compared with the regular tobacco production method, lead, mercury, cadmium, arsenic, copper, chromium and other harmful elements as well as the residual quantities of imidacloprid, emamectin benzoate, permethrin, fenvalerate, thiamethoxam and other main pesticides can be obviously reduced.

The invention relates to a hapten, a preparation method and application thereof, in particular to a pyrethroid pesticide hapten, a preparation method and application thereof. The pyrethroid monoclonal antibody hybridoma cell line F-3-2 screened based on the pyrethroid pesticide hapten is preserved in China General Microbiological Culture Collection Center with a preservation number of CGMCC No.13842. The titer of a pyrethroid monoclonal antibody secreted by the cell line reaches 2*10<5>, the cross reaction rate with deltamethrin is 100%, the cross reaction rate with cyhalothrin is 50.9%, the cross reaction rate with fluvalinate is 103.6%, the cross reaction rate with cyfluthrin rate is 70.7%, the cross reaction rate with fenvalerate is 74.4%, and the cross reaction rate with benzene permethrin is 69.0%. The pyrethroid pesticide hapten provided by the invention provides the condition for immunodetection of pyrethroid pesticide multi-residue, and has practical application value.