To isolate the greatest diversity of fungi from frass and feces, these substrates were incubated using three methods. Method 1: 1 g weevil frass or weevil feces was wetted with 5 ml sterile water and incubated in a 25 ml beaker at room temperature (22 ± 2 °C) after covering with aluminum foil. After 2–4 d of incubation, fungi appearing on the frass- or feces surfaces were transferred to weevil-frass agar (WFA) in Petri plates with the help of a sterilized metallic needle (Azeem et al. 2013). WFA was prepared by adding 10 g weevil frass and 20 g agar in 1000 ml demineralized water and autoclaving at 121 °C for 40 min, the pH of WFA was 4.5–5. The frass/feces surface in the beaker was observed every 24 h for 25 d of incubation and every new emerging fungus was transferred to a fresh WFA plate. The streaked isolates were sub-cultured in several steps until pure isolates were obtained. The pure isolates from frass and feces were maintained on WFA in Petri plates. Method 2: Five mg frass or feces particles was sprayed over WFA in Petri plates without adding water and incubated at room temperature. The Petri plates were observed daily until 25 d of incubation and fungal colonies growing on frass/feces particles or around them were transferred to fresh WFA plates. Pure cultures were isolated as described above. Method 3: Five mg frass, or feces, was mixed in 2 ml sterilized water and it was further diluted 10 and 100 times; 100 μl aliquots from each dilution with frass or feces particles were spread on WFA Petri plates and incubated at room temperature. Petri plates were observed every day; every emerging fungal colony was transferred to fresh WFA- and PDA plates and the isolation process was employed as described above.