Minette writes
Merit 75 WP is not labeled for bagworms and may not provide you with satisfactory results. We recommend that you choose a product that lists bagworms on the product label such as Talstar P (Talstar P is the product most commonly selected by pros for bagworm control), Thuricide, Mavrik, or Permethrin SFR. Please take a few minutes to read our article Bagworm Control to learn when you should start spraying for bagworms.
Answer last updated on: 06/29/2011