Bioassay study of two native Iranian isolates of Bacillus thuringiensis (YD5 and 81) on Leptinotarsa decemlineata Say

Subject Areas : Plant Pests

Maryam  Mahdavi ¹ (Department of Entomology, College of Agriculture and Natural Resources, Science and Research Branch, Tehran, Iran.)
Mohammad Reza  Rezapanah ² (Biological Control Dept., Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization, Tehran, Iran)
Ghadir  Nouri Ghanbalani3 ³ (Department of Plant Protection, College of Agriculture, Mohaghegh Ardebili University, Ardebil, Iran.)
Gholamreza  Salehi Jozani ⁴ (Department of Agricultural Biotechnology Research, Karaj, Iran.)
Neda  Kheradpir ⁵ (Assistant Professor, Department of Plant Protection, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran)

Received: 2016-04-09 Accepted : 2016-08-02 Published : 2016-08-22

Keywords: Bacillus thuringiensis, Leptinotarsa decemlineata, YD5 and 81,

Abstract :

Bioassay of two native isolates of Bacillus thuringiensis (YD5 and 81) on Colorado potato leaf beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae) as a serious pest of potato crop was performed. Variance analysis and mean comparison of the mortality percentage showed significant difference between standard isolates and native isolates in all the concentration. Although native isolates showed no acceptable results, there are some hopes to use them in higher concentrations.