Journal of Applied and Natural Science 7 (1): 106–110 (2015)
Evaluation of fungicides, biocontrol agents and botanicals for management of damping-off in cabbage seedlings caused by Fursarium moniliforme sheld
Salma Begum*, R. K. Tombisana Devi and N. Iboton Singh
Department of Plant Pathology, College of Agriculture, CAU, Imphal-795004 (Manipur), INDIA
*Corresponding author. E-mail: firstname.lastname@example.org
Abstract : The antagonistic effect of 10 fungicides, four biocontrol agents and 10 locally available botanicals in controlling
the growth and sporulation of Fusarium moniliforme in vitro were tested. A pot culture experiment was also conducted to study the effect
of seed treatment and soil treatment alone or in combination on germination and seedling vigour of cabbage. In vitro evaluation of ten
fungicides by poisoned food technique showed that all the fungicides efficiently inhibited complete inhibition of the linear growth of
the fungus was observed with Thiophenate methyl, Carbendazim, Mancozeb, Difenconazole, Propiconazole, Hexaconazole, Sixer and Tricyclazole.
Sporulation was completely inhibited by all the fungicides evaluated. In dual culture technique of the fungus and biocontrol agents, of the
four biocontrol agents evaluated the antagonists, T. hamatum completely overgrew the pathogen, T. harzianum colonized on half of the growth
of the pathogen, T. viride remained locked with the fungus at the point of contact and P. citrinum formed inhibition zone with the fungus.
Sporulation was completely inhibited by all the four antagonists. Among the ten locally available botanicals tested by poisoned food technique
in vitro, garlic extract showed maximum fungitoxic property followed wild sage (Lantana camara), onion (Allium cepa), neem (Azadirachta indica),
goat weed (Ageratum conyzoides) and marigold (Tagetes erecta) . In pot culture experiment, the least disease incidence was recorded in soil
treatment with carbendazim (26%) followed by T. harzianum (29%) and P. glabrum (29.7%). However,considering the various drawbacks and hazardous
effects resulting from use of chemicals, biocontrol agents and plant extracts can be recommended to use in raising healthy seedlings free from
pre- and post-emergence damping-off.
Keywords : Biocontrol agents, Botanicals, Damping-off, Fungicides, Fusarium moniliforme