In the present study total nine types of Trichoderma based formulations were prepared using formulating materials viz. Dextrin, talc, gypsum, paraffin oil and soybean oil. Shelf life of formulations was tested up to 6 months at room temperature (15-350C) and 11 months at refrigerator (40C). Among different formulation dextrin based formulation TF. Paste8 retained maximum viability(26.10%; 4.33x107 CFU/ g) followed by TF.Paste9 (23.95%; 4.00x107 CFU/ ml), and oil based TF.LQ6 (22.43%; 9.67x107 CFU/ ml) after 6 months of storage at room temperature (15- 350C).The formulations stored at 40C retained viability (2.06- 16.06 %) up to 11 months during storage. Maximum viability was observed in TF.Paste8 (16.06%; 2.67x107 CFU/ g) followed by TF.Paste9 (11.98%; 2.00x107 CFU/ g) and oil based TF.LQ6 (8.89%; 3.83x107 CFU/ ml). This study showed that there is potential in using of Trichoderma paste and liquid formulations for improving shelf life of bioformulation as well as in biological control.
