Tomato (Solanum lycopersicum) and root-knot nematodes (Meloidogyne spp.) - a century-old battle

Awol Seid, Chemeda Fininsa, Tesfamariam Mekete, Wilfrieda Decraemer, Wim Wesemael

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    Summary – The encounter between Meloidogyne species and tomato is many centuries old. Meloidogyne species are known to cause high levels of economic loss worldwide in a multitude of agricultural crops, including tomato. This review was initiated to provide an overview of the damage potential of Meloidogyne spp. on cultivars of tomato (Solanum lycopersicum), and to compile the different studies done on the management of Meloidogyne spp. on tomato with particular emphasis on the Mi resistance gene. Numerous studies have been conducted to assess the damage potential of root-knot nematode on various tomato cultivars; its yield loss potential ranges from 25 to 100%. A range of management options from using synthetic nematicides to soilless cultures have been tried and are available for managing Meloidogyne spp. Resistant commercial cultivars and rootstocks carrying the Mi gene have been used successfully to manage Meloidogyne incognita, M. javanica and M. arenaria. However, virulent populations have been detected. Relying on a single root-knot nematode management strategy is an outdated concept and different management options should be used in an integrated management context by considering the whole system of disease management. In future management of Meloidogyne species, care must be taken in directly extrapolating the tolerance limit determined elsewhere, since it is affected by many factors such as the type of initial inoculum and physiological races of Meloidogyne spp., environmental conditions, types of cultivars and experimental approaches used. Keywords – damage potential, durability, management, Mi gene, nematode control, pest management.
    TaalEngels
    TijdschriftNematology
    Volume17
    Pagina's (van-tot)995-1009
    ISSN1388-5545
    StatusGepubliceerd - 2015

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