Effectiveness of Imidacloprid + Betacyfluthrin To Control Cimex Lectularius (Hemiptera, Cimicidae)

Abstract:
An experiment was conducted to evaluate the knockdown effect and effectiveness of imidacloprid 21% + betacyfluthrin 10.5% to control bed bug in laboratory conditions. During the experiment the temperature was ± 2 27oC, relative humidity 66% ± 5 and photoperiod of 12 hours. Imidacloprid 21% + betacyfluthrin 10.5% dilution was 2 ml per liter of water and applied at a flow rate of 50 ml/m2 on the insects that were kept in containers of 500 ml with filter paper in the base to absorb the excess during application. For each treatment four replicates were used in a total of 28 specimens. Knockdown effect was evaluated after 10, 30, 60, 90, 180 and 360 minutes after application and mortality was evaluated at 24 and 48 hours after application. Knockdown results were 53.57% after 30 minutes, reaching a peak of 82.14% at 180 minutes, in mortality assessing the results reached 100% in 24 hours and remained 48 hours after application.