Fungal pathogens associated with banana fruit in Sri Lanka, and their treatment with essential oils.
The crown rot pathogens isolated from banana samples collected from 12 localities in Sri Lanka were Lasiodiplodia theobromae, Fusarium proliferatum and Colletotrichum musae. Fungal pathogens isolated were able to cause crown rot disease alone or in combination. Disease severity was higher when combinations of virulent pathogens were used. Cymbopogon nardus and Ocimum basilicum oils displayed fungicidal activity against C. musae and F. proliferatum between 0.2-0.6% (v/v) in a Poisoned food bioassay. Slightly lower concentrations of the test oils were needed for similar activity during liquid bioassays. The combination of Cymbopogon nardus and O. basilicum oils demonstrated synergistic action during both in-vivo bioassays.
Department of Botany, University of Kelaniya, Kelaniya, Sri Lanka.
Sulali
S
Anthony
Krishanthi
K
Abeywickrama
Ranjith
R
Dayananda
Shanthi Wilson
SW
Wijeratnam
Luxshmi
L
Arambewela
D020231:Colletotrichum / Q000254:growth & development* / Q000378:metabolism; D031743:Cymbopogon / Q000378:metabolism; D005670:Fusarium / Q000254:growth & development* / Q000378:metabolism; D028521:Musa / Q000382:microbiology*; D018649:Ocimum basilicum / Q000378:metabolism; D010572:Pest Control, Biological / Q000379:methods*; D010935:Plant Diseases / Q000382:microbiology*; D010938:Plant Oils / Q000494:pharmacology*; D013188:Sri Lanka
D010938:Plant Oils