Casement Windows OK! Published December 11, 2018 at 1200 × 1599 in InsectOut Magnetic Insect Screen & Window Mesh ← Previous Next → Ms Z was concerned about mosquito and a hornet building a nest behind her house. Meshing up her windows with InsectOut Magnetic Insect Screen (window mesh) is the best solution. No need to harm the hornet – peace for all!