List of Articles KH4 Open Access Article Abstract Page Full-Text 1 - The study of biological differences between two native isolates of Bacillus thuringinesis (KH4 and GN9) on potato leaf beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae) Maryam Mahdavi Mohammad Reza Reza Panah Ghadir Nouri Ghanbalani Gholamreza Salehi Jozani Neda Kheradpir