List of Articles Helicoverpa armigera> Open Access Article Abstract Page Full-Text 1 - Isolation of local isolates of Bacillus thuringiensis from forest soils of Golestan province and evaluation of their toxicity on larva of Helicoverpa armigera (Lepidoptera: Noctouidae). Marzieh Shazdehahmadi Seyed Afshin Sajjadi