Spray affected plants with a ready-to-use systemic insecticide that contains acephate, imidacloprid or dinotefuran. Systemic formulas do not kill bagworms directly. The active ingredient is absorbed into plant leaves and needles, and then circulated throughout the plant. The insects die when they feed on plant parts and plant sap.
Depending on the size of your garage, insulating the walls with batts of R-13 will typically run you about $400, the ceiling $600, and the garage door will cost about $600 if you do it right (See image to the left). You can use the pink Styrofoam stuff from Home Depot, but that will only insulate your door to about R-6.
The average cost to install radiant barrier or batt insulation is between $968 and $2,141 but can vary depending on the size of your space and where youâre having the insulation installed. Whereas radiant barrier is best suited to attics, batt and roll insulation can be great for walls and other tight spaces.