-

Fungi on Dragon Fruit in Loei Province, Thailand and the Ability of Bipolaris cactivora to Cause Post-harvest Fruit Rot

-

Samoul Oeurn, Wuttiwat Jitjak and Niwat Sanoamuang

-

Dragon fruit [Hylocereus undatus (Haworth) Britton & Rose] grown in Loei province

is one of dragon fruit cultivars with high quality and rich of sweetness compared to the

fruits from other areas. There were some fungal infections observed in post-harvested

diseases caused serious damage on the fruits leading to serious damages to the produces.

Therefore, Fungi were isolated from three infected parts of the plants e.g. stems, flowers

and fruits, in relevant to the causative pathogens. Two fungal species, Alternaria sp. and

Phomopsis sp. were found on the stems. Six species, Bipolaris cactivora, Cladosporium

cucumerinum, Fusarium sp., Alternaria sp. and Colletotrichum gloeosporiodes were

obtained from rotten flowers. From the fruits, three fungi, B. cactivora, C. gloeosporiodes

and Rhizopus stolonifer were isolated. The most frequently species isolated from the fruits

and some epidemiological aspects of the pathogen were studied in details.

-

Drechslera; Hylocereus undatus; fitness aspects; infection processes