Year: 2025 | Month: December | Volume: 12 | Issue: 12 | Pages: 637-645
DOI: https://doi.org/10.52403/ijrr.20251266
Etiology, Intensity, and Use of Trichoderma Spp. to Control Budok Disease in Patchouli Plants
Deflly A. S. Turang1, Betsy A. Pinaria1, Caroulus S. Rante1
1Study Program of Plant Protection, Faculty of Agriculture, Sam Ratulangi University, Manado, Indonesia
Corresponding Author: Deflly A. S. Turang
ABSTRACT
Patchouli (Pogostemon cablin Benth) began to be cultivated in 2020 in the Tompaso Baru region and then spread to several districts in North Sulawesi province, Indonesia. Since 2020, the area under patchouli cultivation has increased dramatically, estimated to already cover thousands of hectares. Budok disease has been found in several patchouli plantations in Tompaso Baru. Typically, a new disease in one area will quickly spread to other plantations because natural enemies are not yet familiar with it. This spread is accelerated because patchouli seedlings to be planted in other regions' plantations may already contain the budok pathogen. The objectives of this study were to calculate the incidence and severity of budok disease in the field, to identify the fungus that causes budok disease, and to obtain information on effective and efficient doses of Trichoderma harzianum in controlling the budok pathogen. The results of this study indicate that the incidence of the new infection process begins to occur in the second week after inoculation. Entering 21 days, the disease progression increased quite significantly, indicated by an increase in incidence in treatments 1 to 3 which reached 50%, while treatment 4 still showed the lowest incidence of 16.66%, and the control remained unaffected according to its function as a negative control. Trichoderma treatment did not have a significant effect on the severity value of budok disease in patchouli plants (p>0.05).
Keywords: Budok Disease, Pogostemon cablin, Trichoderma harzianum.
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