تعیین محیط‌های کشت مناسب برای تولید انبوه قارچ‌های Beauveria bassiana و Metarhizium anisopliae در روش دو فازی مایع- جامد برای استفاده در کنترل میکروبی آفات خرما

Research results have shown that Beauveria bassiana and Metarhizium anisoliae fungi are effective in controlling Sawtoothe beetle Oryzaephilus surinaemensis and date palm horned beetle Oryctes elegans, respectively.In this study, fungi, the most appropriate medium for the production of B. bassiana and M. anisoliae in liquid and solid phases to produce clamidospore and conidiosopre were elected. For the liquid phase of plant foods, including potatoes, wheat flour, rice flour, corn flour and sugar cane molasses, and for the solid phase of plant materials, including sugar cane, corn, barley, rice, millet and sorghum were evaluated. The performance characteristics of the liquid phase compared by spore concentration and germination percent of clamidospores. The performance characteristics of the soilid phase compared by fresh weight, dry weight, relative to the dry weight to fresh weight, moisture content, weight recoverable, conidia concentration, the ratio of conidia concentration of power to weight and germination. Results showed that between different plant extracts used as liquid and solid medium to produce clamidospores and conidia of B. bassiana and M. anisopliae were significantly different at 5 and 1% probability. The economic efficiency of production, while considering the quantity and quality of the product produced per unit weight of the plant material consumed, also expresses the economic value of the plant material in the program for the production of the microbial control agent. In the end suger cane molasses extract and rice elected to produce clamidspore and conidia of B. bassiana and M. anisopliae respectively due to maximum produce and economic performance.