Pratylenchus penetrans

Pratylenchus penetrans is a species of nematode that is commonly known as the lesion nematode. It is a plant-parasitic nematode that is found worldwide and is known to cause significant damage to a wide range of agricultural crops.

Taxonomy

The Pratylenchus penetrans belongs to the phylum Nematoda, class Secernentea, order Tylenchida, family Pratylenchidae, and genus Pratylenchus. The species was first described by Cobb in 1917.

Morphology

Pratylenchus penetrans is a small nematode, typically measuring 0.5 mm in length. It has a slender, cylindrical body with a pointed tail. The mouth is equipped with a stylet, a needle-like structure used for feeding.

Life Cycle

The life cycle of Pratylenchus penetrans includes egg, four juvenile stages, and adult. The nematode feeds on the roots of plants, causing lesions and reducing the plant's ability to absorb water and nutrients.

Economic Importance

Pratylenchus penetrans is considered a major agricultural pest. It affects a wide range of crops, including potatoes, carrots, strawberries, and grapes. Damage caused by this nematode can result in significant yield losses.

Management

Management of Pratylenchus penetrans involves a combination of cultural practices, biological control, and chemical control. Crop rotation with non-host plants, use of nematode-resistant varieties, and application of nematicides are some of the strategies used to manage this pest.

See Also

• Nematode
• Plant Pathology
• Agricultural Pest Management