The Effectiveness of Trichoderma spp. against Downy Mildew Disease of Corn
Joko Prasetyo
Department of Plant Protection, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
Sudiono . *
Department of Plant Protection, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
Cipta Ginting
Department of Plant Protection, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
Yulia Citra Permatasari
epartment of Plant Protection, Faculty of Agriculture, Lampung University, Postal Code 35144, Bandar Lampung, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Introduction: One of environmentally friendly method for controlling plant diseases is the use of Trichoderma spp. as a natural controlling agent.
Objectives: The objective of this research was to find out the effectiveness of Trichoderma spp. against downy mildew disease.
Methodology: This research was conducted in the Plant Pest and Disease Laboratory in the Plant Protection Department of Faculty of Agriculture in Lampung University. This research used completely randomized design consisting without treatment (0), Trichoderma spp. Gading Rejo Region (GDR) isolate (1) Trichoderma spp. Nusantara Tropical Farm (NTF) isolate (2), and Trichoderma spp. Trimurjo (TRJ) isolate (3) treatments which were applied to the plant growing points as fungicide (B) and as inducer of plant resistance to be applied in the plant roots (P).
Results: The research results showed that the Trichoderma spp. treatments could reduce the disease occurrence at 4 and 5 days after inoculation, but they could not reduce the disease severity and improve stover dry weight of corn plant.
Conclusion: The Trichoderma spp. Treatment as biofungicide and plant resistance inducer are effective against the incubation period and suppress the disease occurrence of downy mildew disease significantly at the early course of the disease.
Keywords: Biofungicide, downy mildew, plant resistance inducer, Trichoderma spp.