By Roland N. Perry, Maurice Moens, James L Starr

Root-knot nematodes are the main economically very important team of plant-parasitic nematodes around the globe, and their regulate provides an immense international problem. Advances are being made in figuring out their biology, host-parasite interplay and administration recommendations, and this entire consultant with many color images and contributions from foreign specialists covers the taxonomy, category, morphology, life-cycle biology, genomes, resistance, sampling, detection, and administration recommendations of those pests, offering an important reference for researchers, scholars and academics in plant nematology, plant pathology, agriculture, and agronomy.

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2002). Other recorded hosts include vegetables, and other crops, such as bell pepper (Capsicum annuum), soybean (Glycine max), sweet potato (Ipomoea batatas), tobacco (Nicotiana tabacum) and watermelon (Citrullus lanatus). A tropical fruit tree, guava (Psidium guajava), is also a good host of this nematode (Plate 20). Spanish needle (Bidens pilosa), a weed host, has also been identified. In Cuba, reproduction was observed on coffee (Coffea arabica cv. Caturra), bean (Phaseolus vulgaris cv. Icapijao), beet (Beta vulgaris), broccoli (Brassica oleracea var.

Cleaning machinery before use is recommended, and planting material can be discarded if infected, or treated with chemicals or hot water to reduce the numbers of Meloidogyne. Only seedlings produced in Meloidogyne-free seedbeds should be transplanted. Listing species as quarantine organisms reduces the risks of spread through international trade. , 2006). However, M. chitwoodi is of increasing importance, primarily because it is a serious pest of economically important crops such as potatoes and carrots, and is on the lists of prohibited pests of many countries (Canada, the EU, Mexico, and other countries in Latin America and the Far East).

Meloidogyne paranaensis may occur by itself or in mixed populations with other Meloidogyne spp. , 1996). Inserra et al. (2003) suggested that this nematode may lower yield potentials by 50%. This estimate is based on information provided by Carneiro et al. (1996), but the original authors only suggested that this particular species may ‘[account] for approximately 52% of all rootknot nematode infestations in Paraná’. Carneiro et al. (1996) do not comment on the magnitude of damage when these infestations occur.

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