Hemicriconemoides mangiferae

Hemicriconemoides mangiferae is a species of nematode that belongs to the family Criconematidae. It is a plant-parasitic nematode known to cause damage to a variety of crops, including the mango tree, from which it derives its species name.

Taxonomy

The genus Hemicriconemoides is part of the family Criconematidae, a group of nematodes that are primarily plant-parasitic. The species mangiferae was first described by Edward A. Siddiqi in 1961. The species name mangiferae is derived from the Latin mangifera, meaning "mango-bearing", in reference to the mango tree, one of the primary hosts of this nematode.

Morphology

Hemicriconemoides mangiferae is a small nematode, typically measuring between 0.3 and 0.5 mm in length. It has a distinctive annulated cuticle and a stylet for feeding. The female nematodes are larger than the males and have a rounded posterior end.

Life Cycle

The life cycle of Hemicriconemoides mangiferae involves several stages, including egg, four juvenile stages, and adult. The nematode feeds on the roots of host plants, causing damage that can lead to reduced crop yields.

Hosts and Symptoms

Hemicriconemoides mangiferae is known to infest a variety of crops, including mango, citrus, and banana. Infected plants may show symptoms such as yellowing of leaves, stunted growth, and reduced fruit yield. In severe infestations, the nematode can cause significant economic losses.

Management

Management of Hemicriconemoides mangiferae involves a combination of cultural practices, biological control, and chemical control. Crop rotation with non-host plants can help to reduce nematode populations in the soil. Biological control agents, such as nematophagous fungi, can also be used to control nematode populations. Chemical nematicides are often used in severe infestations, but their use is limited due to environmental concerns.

See Also

• Criconematidae
• Nematode
• Plant Pathology