Cropping systems for the management of phytonematodes |
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| Authors: | R Rodríguez-kábana Graciela H Canullo |
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| Institution: | 1. Dept. of Plant Pathology and Alabama Agricultural Experiment Station, Auburn University, 36849-5409, Auburn, AL, USA
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| Abstract: | Damage caused by nematodes is one of the limiting factors in crop production. Traditional nematode management is based on
the use of crop rotations, resistant cultivars, nematicides, or combinations of these methods. For a crop like peanut (Arachis hypogaea), cultivars resistant to root-knot nematodes are not available. There are soybean (Glycine max) cultivars resistant to some of the species of root-knot nematodes (Meloidogyne spp.); however, most fields have nematode infestations composed of mixtures of species. Research at Auburn has shown that
tropical crops can be used effectively in rotation to manage nematode problems. Rotations with American jointvetch (Aeschynomene americana), castor (Ricinus communis), hairy indigo (Indigofera hirsuta), partridge pea (Cassia fasciculata), sesame (Sesamum indicum), and velvetbean (Mucuna deeringiana) have resulted in good nematode control and increased yields of peanut and soybean. Some crops (castor, sesame) are considered
‘active’ in that they produce compounds that are nematicidal, whereas others (e.g. corn, sorghum) are simply non-host, that is, ‘passive’. |
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| Keywords: | Phytonematodes antagonistic plant cover crop intercropping monoculture multicropping nematicidal or nemostatic root exudate non-host rotation system |
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