It is an endoparasitic, migratory nematode commonly found in areas such as the United States, Europe, central Asia and Southern Africa.
This causes the affected tissues to become brown and powdery, and the surface of the tuber becomes covered with dark patches with dry cracking skin.
After infection, the nematodes move throughout the plant tissue producing a pectinase enzyme, which causes cell degeneration and is the main causal agent of the rot observed.
[4] Ditylenchus destructor is not very mobile through soil though, so dispersal primarily occurs during harvest or transportation of the host when healthy tubers are in the immediate vicinity.
[4] Unlike other nematodes, Ditylenchus destructor does not have a resting form, so environmental conditions have a large impact on the habits of the organism.
[7] Given these conditions, the most opportune locations for Ditylenchus destructor are in midwestern and southern North America as well as central parts of Europe and Asia.
[9] Some of these include alfalfa, beets, carrots, garlic, hops, mint, parsnips, peanuts, rhubarb, tomatoes, and flowering plants such as irises and tulips.
[8] The main symptoms of Ditylenchus destructor, common to potatoes and its other hosts, are the rotting and discoloration of subterranean plant tissue.
Potato rot nematodes in groundnuts, such as peanuts, develop blackened hulls, shrunken kernels, and embryos with a brown discoloration.
Nematodes are extracted from infected plant tissue and examined microscopically for distinguishing characteristics such as body and stylet, and tail morphology.
Planting materials and locations free of these nematodes is crucial, so the soil, seeds, and farm machinery must all be carefully controlled.
[7] Chemical control of Ditylenchus destructor can be achieved with soil-applied nematicides such as carbofuran, ethylene dibromide, VAPAM HL, and TELONE.
This high rate of disease caused immense damage to the fields that were infected and a large amount of crops were lost.
[4] Fortunately, the United States has used very stringent control laws to avoid any widespread or major damage similar to that seen in the past.
[8] The complete list of countries that have been affected by Ditylenchus destructor include Azerbaijan, Bangladesh, China, India, Iran, Japan, Kazakhstan, Korea, Kyrgyzstan, Malaysia, Pakistan, Saudi Arabia, Tajikistan, Turkey, Uzbekistan, South Africa, Canada, Mexico, United States, Haiti, Ecuador, Peru, Albania, Austria, Belarus, Belgium, Bulgaria, Czech Republic, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Moldova, Netherlands, Norway, Poland, Romania, Russia, Slovakia, Span, Sweden, Switzerland, Ukraine, United Kingdom, Australia, and New Zealand.