Plane-tree root-knot nematode

Systematic position of this pest is classified within the phylum Nematoda, class Chromadorea, order Rhabditida, and family Meloidogynidae. Meloidogyne platani is a specialized plant-parasitic nematode that specifically targets the root systems of woody plants, inducing significant structural changes in root morphology.

Host plants damaged by this nematode primarily include species of the genus Platanus. Young saplings in nurseries are particularly vulnerable to infestations, which can lead to significant economic losses in urban forestry and landscaping industries when infected stock is outplanted.

Biology and life cycle involve the invasion of host roots by second-stage juveniles. Once inside, they induce the formation of giant cells, leading to the development of characteristic root galls. The sedentary females remain within these galls, producing egg masses that serve as the primary source of survival and continued infestation in the soil environment.

Damage character and economic impact are primarily manifested as the development of root galls, which disrupt the plant's ability to absorb water and essential nutrients. Infected trees show stunted growth, chlorosis, and general decline. Over time, heavy infestation significantly reduces the tree's vigor and can result in the mortality of young trees.

Control measures focus on integrated management practices to prevent the introduction and spread of the nematode. Effective strategies include:

• Strict quarantine and inspection of planting material.
• Use of soil fumigation or chemical nematicides in nursery environments.
• Implementing proper irrigation and soil management to promote plant health.
• Removal and destruction of highly infested nursery stock to prevent population buildup.