Determination of Biological Preparations Efficacy against Halyomorpha halys (Stal, 1885) (Hemiptera: Pentatomidae)

Abstract

In this study, the biological efficacy of commercial entomopathogenic fungi, Nibortem (Verticillium lecani), Nostalgist BL (Beauveria bassiana) and Bio Magic (Metarhizium anisopliae), and botanical insecticide Azadirachtin, and synthetic insecticide Decis against Halyomorpha halys were determined in laboratory conditions. Overall, 1.25 ml, 2.5 ml and 5 ml/500 ml water concentration of Azadirachtin, 1.25 ml/500ml water (1x10(9) kob ml) concentration of Nibortem, Nostalgist BL and Bio-Magic, for each, and 0.15 ml/500 ml water concentration of Decis were applied in the study. The 2 ml dose from each of the commercial bioinsecticides were sprayed on H. halys for each replication. The experiments were conducted in 26 +/- 2 degrees C temperature and 60 +/- 2% humidity conditions. Among the commercial entomopathogens, Nibortem was determined as the most effective preparation on the pest with a 72.2% at the end of the 7th day. BioMagic was revealed 55.6 % and Nostalgist BL sustained 38.9%. effectiveness. Overall, Azadirachtin was conclude as the most effective preparation by 94.4% effectiveness on Halyomorpha halys at 5 ml/500 water doses.