Will Tengard SFR work for wasps?
What would you suggest for severe wasp problems?
Tengard SFR is labeled for wasps. You would use 1 2/3 fl oz of Tengard SFR per gallon of water to make a 0.5% solution to eliminate wasps. We usually recommend using a wettable powder formulation such as Cyper WP for wasp control. Wettable Powders stay up on the surface of porous materials making the product readily available to insects. Neither of these products will offer an immediate knockdown of wasps. The wasps must land on the area that has been sprayed and then have time to succumb to the effects of the insecticide. For an immediate knockdown, use Wasp Freeze to spray the wasps directly. For best results, and to lessen the chances of being stung, treat wasps nests very late in the evening or very early in the morning when the wasps are less active.
Answer last updated on: 07/14/2010