A group of migratory microscopic roundworms (Pratylenchus species, notably Pratylenchus penetrans and Pratylenchus zeae) that tunnel directly through root tissue, rather than forming galls, of an extremely wide range of crops including maize, potato, wheat, soybean and many fruit and ornamental species, creating necrotic lesions that open roots to secondary fungal infection. Because different species attack different hosts and populations build up under continuous cropping of a susceptible crop, they are considered among the most economically significant plant-parasitic nematodes worldwide after root-knot and cyst nematodes.
Facts
Control Method Control Method Connections
Associated With
Potato, Crops The lesion nematode (Pratylenchus penetrans) is a major root pathogen contributing to potato early dying complex.
Caused By Agent Kind
Sources
1. Lesion Nematode (Wikipedia)
Wikimedia FoundationOpening definition paragraph
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.
lead description
A group of migratory microscopic roundworms (Pratylenchus species, notably Pratylenchus penetrans and Pratylenchus zeae) that tunnel directly through root tissue, rather than forming galls, of an extremely wide range of crops including maize, potato, wheat, soybean and many fruit and ornamental species, creating necrotic lesions that open roots to secondary fungal infection.
Article text
Selecting resistant plant varieties and cultivars can reduce nematode problems.
Article text, control method
Crop rotation can help control the nematode load in the soil because different plants are susceptible to different Pratylenchus species.
View the Source Lesion Nematode (Wikipedia)
In Group: Migratory Root Nematodes, Wikipedia article leadQuote, In Group: Migratory Root Nematodes, Wikipedia article lead
Lesion nematodes are migratory endoparasites that feed and reproduce in the root and move around
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