Nematropica (1997) 27, 1-6

A.M.S.F. de Almeida, M.S.N.D. Santos and M.F. Ryan (1997)
Host status of selected plant species for Meloidogyne megadora
Nematropica 27 (1), 1-6
Abstract: Thirty-two plant genotypes, mainly cultivars from nineteen plant species, were tested as hosts for Meloidogyne megadora under growth-room conditions at ambient temperature ranging from 20 to 28° C. Each plant was inoculated with 5000 eggs and second-stage juveniles. Host suitability was assessed 60 days after inoculation, based on root gall index and final population level. The cultivars of cucumber (Cucumis sativus) and one of banana (Musa acuminata cv. Grande Ana) were the most susceptible hosts. Two banana genotypes (M. acuminata cv. Hybrid Williams and M. paradisiaca), sweet potato (Ipomoea batatas) and two pea (Pisum sativum) cultivars were also susceptible. Resistant were: two cultivars of pepper (Capsicum annuum), three of lettuce (Lactuca sativa), and one cultivar each of cabbage (Brassica oleracea cv. Tronchuda Portuguesa), watermelon (Citrullus vulgaris), relish (Petroselinum crispum), eggplant (Solanum melongena), potato (Solanum tuberosum), papaya (Carica papaya), and dwarf balsam (Impatiens balsamina). Several plants appeared to be hypersensitive; they exhibited galling, but suppressed nematode development. These included: one cultivar of beet (Beta vulgaris), four cultivars of cabbage, two of turnip (Brassica napus), one of cantaloupe (Cucumis melo), one of soybean (Glycine max), and two of radish (Raphanus sativus). Results are discussed in terms of the potential use of some of these plants in cropping systems in M. megadora-infested soils in the Democratic Republic of S. Tomé and Príncipe.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne megadora	Banana/plantain (Musa)
	Meloidogyne megadora	Coffee (Coffea)	São Tomé and Príncipe
	Meloidogyne megadora	Sweet potato (Ipomoea batatas)
	Meloidogyne megadora	Cucumber (Cucumis sativus)