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3 results about "Pratylenchus" patented technology
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Pratylenchus is a genus of nematodes known commonly as lesion nematodes. They are parasitic on plants and are responsible for root lesion disease on many taxa of host plants in temperate regions around the world. Lesion nematodes are migratory endoparasites that feed and reproduce in the root and move around, unlike the cyst or root-knot nematodes, which may stay in one place. They usually only feed on the cortex of the root. Species are distinguished primarily by the morphology of the stylets.
Triazinyl-fused ring carboxamide derivatives and their nematicidal use
The present invention relates to a compound with excellent nematicidal effect, a method for producing the same, a nematicidal formulation containing the compound as an active ingredient, and a method for controlling nematodes, comprising applying the compound to plants or soil. In particular, the compound of the present invention is useful for controlling root-knot nematodes (Meloidogyne spp.), cyst nematodes (Heterodera spp., Globodera spp.), root-rot nematodes (Pratylenchus spp.), Rotylenchus spp., etc.
Owner:FARMHANNONG CO LTD
Pc-VAP gene, protein coded by Pc-VAP gene and application of Pc-VAP gene in regulation and control of infection ability of pratylenchus coffee
The invention discloses a Pc-VAP gene, a protein coded by the Pc-VAP gene and application of the Pc-VAP gene to regulation and control of infection capacity of pratylenchus coffee, and belongs to the technical field of biology. The Pc-VAP is located in esophageal glands, intestinal tracts, gonads and eggs of Pratylenchus coffee. RT-qPCR results show that the Pc-VAP is expressed in different insect states of the pratylenchus coffee, and the expression quantity of female pratylenchus coffee is the highest. After the Pc-VAP is silenced by the in vitro RNAi, the expression quantity of the Pc-VAP gene in the nematode body is obviously reduced (Plt; 0.05), the infectivity of the nematodes is obviously reduced; after the Pc-VAP gene silencing is mediated by the VIGS, the pathogenicity of the pratylenchus coffee to the host is obviously reduced. The results show that the Pc-VAP gene can be used as a target gene and has important application potential in prevention and control of pratylenchus coffee.
Owner:HENAN AGRICULTURAL UNIVERSITY
Use of dimethyl trisulfide
The application belongs to the technical field of agricultural pest control, and discloses an application of dimethyl trisulfide. The dimethyl trisulfide is applied to a nematicide, and through the determination of the mortality of Bursaphelenchus xylophilus, Meloidogyne incognita and Pratylenchus penetrans, it is found that fumigation and immersion have good killing effects on the three kinds of nematodes. For fumigation, the median lethal concentration of Bursaphelenchus xylophilus is 0.0265 μL / L at 24 h, and the median lethal concentrations of Meloidogyne incognita and Pratylenchus penetrans are 0.1303 μL / L and 0.01786 μL / L at 72 h respectively; for nano-emulsion immersion, the median lethal concentrations of Bursaphelenchus xylophilus, Meloidogyne incognita and Pratylenchus penetrans are 0.0072 mg / mL, 0.0832 mg / mL and 0.0461 mg / mL respectively. The application provides a new choice for the preparation of a new nematicide.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI