Resumo

CEPEDA-SILLER, Melchor et al. Toxicity of Carya illinoinensis (Fágales: Junglandaceae) extracts against Meloidogyne incógnita (Tylenchida: Heteroderidae) in tomato. Ecosistemas y recur. agropecuarios [online]. 2018, vol.5, n.13, pp.143-148. ISSN 2007-901X.  https://doi.org/10.19136/era.a5nl3.1144.

Meloidogyne incógnita is important in tomato cultivation because of its ability to reduce fruit yield and quality. The objective was to evalúate the toxic activity of extracts from the pecan (Carya illinoinensis) nut shell and husk on the southern root-knot nematode (M. incógnita) in greenhouse-grown tomato plants. Plant extracts of pecan nut husk and shell were evaluated in seven treatments with four replications under a randomized complete block design, by assessing the population density of second-generation juveniles, and the efficiency of the treatments was determined. Applying pecan nut extracts on M. incógnita was found to have an effect, highlighted by the aqueous shell extracts with a 99 and 97% M. incógnita population reduction at concentrations of 1:50 and 1:75, followed by the ethanol husk extract with 87% at the 1:50 concentration and 71% at the 1:75 concentration.

Palavras-chave : Control; plant extracts; southern root-knot nematode; pecan nut; Solanum lycopersicum.

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