Screening-method for the examination of the resistance against contact-insecticides of Lyctus brunneus Steph. beetles
IRG/WP 2148
E Graf, B Lanz
A serie of filter-paper rondelles is treated with different concentrations of an organic insecticide dissolved in aceton. Beetles of Lyctus brunneus are put onto the dry surfaces. During the impact of the poison the knock-down is observed and after a following poisonfree holding, the knock-down and mortality are registred.