Development of a new management strategy for the control of root-knot nematodes (Meloidogyne spp) in organic vegetable production

A - Papers appearing in refereed journals

Atkins, S. D., Hidalgo-Diaz, L., Kalisz, H., Mauchline, T. H., Hirsch, P. R. and Kerry, B. R. 2003. Development of a new management strategy for the control of root-knot nematodes (Meloidogyne spp) in organic vegetable production. Pest Management Science. 59 (2), pp. 183-189.

AuthorsAtkins, S. D., Hidalgo-Diaz, L., Kalisz, H., Mauchline, T. H., Hirsch, P. R. and Kerry, B. R.
Abstract

The nematophagous fungus, Pochonia chlamydosporia (Goddard) Zare & Gams, has been investigated as a potential biological control agent for use in integrated pest management strategies for Meloidogyne incognita (Kof & White) Chitwood in vegetable crops. The release of the fungus as a biological control agent requires a diagnostic method to monitor its spread in the environment and to gain knowledge of its ecology. Only molecular methods are sufficiently discriminating to enable the detection of specific isolates of fungi in soil. A method to extract DNA from soil was developed to increase the efficacy of PCR-based diagnostic tests that use specific primers. A selected isolate of P chlamydosporia var catenulata was applied at densities similar to those that occur naturally in nematode-suppressive soils. The fungus significantly reduced nematode infestations in soil following a tomato crop, in a strategy that combined the use of the fungus with crop rotation. The survival of the fungus in soil was also examined in controlled conditions in which it remained in soil in densities significantly greater than its original application rate for at least 5 months. Hence, it seems that populations of this fungus may be built up in soil and have significant effects on the regulation of root-knot nematode populations.

KeywordsAgronomy; Entomology
Year of Publication2003
JournalPest Management Science
Journal citation59 (2), pp. 183-189
Digital Object Identifier (DOI)doi:10.1002/ps.603
PubMed ID12587872
Open accessPublished as non-open access
Funder project or code421
444
506
The diversity, biology and dynamics of microbial agents that regulate nematode populations in the rhizosphere
Biomanagement of root-knot nematodes in peri-urban agricultural systems
Soil microbe diversity and activity
The diversity of verticillium chlamydosporium populations and its relevence to the regulation of nematode populations
FunderBiotechnology and Biological Sciences Research Council
Output statusPublished
Publication dates
Online07 Jan 2003
Publication process dates
Accepted25 Jul 2002
Copyright licensePublisher copyright
PublisherWiley
ISSN1526-498X

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