Trichoderma from Aceh Sumatra reduce Phytophthora lesions on pods and cacao seedlings

•Trichoderma spp. are endophytes of Indonesian cacao leaves and roots.•T. virens isolate Tv was a mycoparasite and suppressed P. tropicalis and P. palmivora.•T. virens isolate Tv reduced P. palmivora lesion expansion on detached cacao pods.•T. virens isolate Tv reduced P. palmivora seedling leaf lesions on cacao.