Evaluation of non-chemical treatments in the control of Meloidogyne incognita on common bean
2000
Ibrahim, A.A.M. (Alexandria Univ. (Egypt). Dept. of Nematology) | Ibrahim, I.K.A.
The efficacy of the marine algae, Ulna fasciata and Botryocladia capillaceae, leaves of Eucalyptus sp., Ficus retusa and Psidium guajava, and manure of cattle, chicken and dove was evaluated as organic soil amendments @ 2% w/w in controlling M. incognita on common bean cv. Giza 3 as compared to the nematicide carbofuran 10G (0.2 g/pot). All treatments greatly suppressed (P- 0.05) the disease index (root galling) and nematode reproduction (egg mass production). Maximum reduction in root galling (97.4%) and egg mass production (98.9%) was obtained where green alga U. fasciata was used. The relative efficacy of the brown alga B. capillaceae, leaves of P. guajava, and cattle and chicken matures was approximately the same as the nematicide carbofuran in reducing number of nematode egg masses while the green alga U. fasciata gave 18 folds reduction in egg mass production compared to carbofuran. Fresh and dry weights of shit and root systems were generally increased (P - 0.05) by the nematicide carbofuran and all the tested organic amendments, Eucalyptus and P. guajava leaves which showed a little phytotoxicity.
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