Antagonistic effect of Trichoderma harzianum on postharvest pathogens of rambutan (Nephelium lappaceum)

Trichoderma harzianum (TrH 40) isolated from soil samples from rambutan orc hards (Nephelium lappaceum) had antagonistic effects against three postharv est pathogens of rambutan: Botryodiplodia theobromae, Colletotrichum gloeos porioides and Gliocephaloirichium microchlamydosporum, causative fungi of s tein end rot, anthracnose and brown spot, respectively. The effects were du e to both antibiosis and mycoparasitism. T. harzianum (TrH 40) treatment, w hile reducing the occurrence of the three postharvest diseases, also retain ed the overall quality and color of the fruits.