Home » Trichoderma harzianum is a ________ that is predominantly used as a fungicide Environmental Pollution MCQs Trichoderma harzianum is a ________ that is predominantly used as a fungicide January 27, 2022 69 Views Q. Trichoderma harzianum is a ________ that is predominantly used as a fungicideA. VirusB. FungusC. BacteriaD. ProtozoaAnswer: Fungus