Effect of some plant extracts on mobility, mortality, egg hatching and pathogenicity of Meloidogyne exigua from coffee plants
Methanolic and aqueous extracts from Cajanus cajan, Crotalaria juncea, Ficus elastica, Ruta graveolens, Stylosanthes guianensis, Leucaena leucocephala, Punica granatum, Allium cepa, Allium sativum, Brachiaria decumbens, Catharanthus roseus, and Tagetes minuta were evaluated for toxicity to M. exigua. All extracts were toxic to M. exigua in in vitro assays with eggs and second-stage nematode juveniles. Extracts from A. cepa and R. graveolens, which were most toxic, were evaluated in an in vivo assay using six-month-old coffee plants inoculated with M. exigua eggs. The extracts reduced gall number without any toxic effect on coffee plants.
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| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
2002
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| Subjects: | TAGETES MINUTA, COFFEA, MELOIDOGYNE EXIGUA, MELOIDOGYNE INCOGNITA, NEMATODA, ALLIUM, ALLIUM CEPA, ALLIUM SATIVUM, BRACHIARIA DECUMBENS, CAJANUS CAJAN, CATHARANTHUS ROSEUS, CROTALARIA JUNCEA, FICUS ELASTICA, LEUCAENA LEUCOCEPHALA, PUNICA GRANATUM, RUTA GRAVEOLENS, STYLOSANTHES GUIANENSIS, TAGETES, CONTROL QUIMICO, AJO, CONTROL DE NEMATODOS, PRODUCTOS FORESTALES NO LEÑOSOS, CEBOLLA, CONTROL DE PLAGAS, GUISANTE DE ANGOLA, EXTRACTOS VEGETALES, NEMATODOS DE LAS PLANTAS, PLAGAS DE PLANTAS, GRANADA(FRUTA), |
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