List of Articles Keywords: Biological insecticide Open Access Article Abstract Page Full-Text 1 - Extraction of local isolates of Bacillus thuringiensis from the soils of Fars province and evaluation of their toxicity on larva of Plodia interpunctella (Hubner) F. Tavangarzamin Sh. Hesami E. Moazamian Gh. r. Salehi Jouzani