Figure 2 | Scientific Reports

Figure 2

From: Diversity and convergence of mechanisms involved in pyrethroid resistance in the stored grain weevils, Sitophilus spp.

Figure 2

Effects of synergized pyrethroids in the mortality of adult Sitophilus spp weevils. (A) Comparative effects of the synergists piperonyl butoxide (PBO), diethyl maleate (DEM), and triphenyl phosphate (TPP) on the mortality caused by deltamethrin and lambda-cyhalothrin on the weevil strains that were resistant (i.e., the S. zeamais SzPyrSel strain and the S. oryzae SoPyrTol and SoPyrR strains) to pyrethroid insecticides. Asterisks indicated that this pyrethroid concentration is 100-fold higher than the estimated for the S. zeamais SzSusc strain (i.e., the pyrethroid susceptibility pattern strain). (A,B) Treatments lined with the same vertical bar do not differ statistically (paired t-test, P < 0.05).

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