Gene from Hendersonville, Tn writes,
What is the best systemic insecticide to use for bagworms on my leyland cypress?
My trees are still growing and already too high to pick off the bags and get to the top with my hose end sprayer; I'm looking into a systemic insecticide to treat them
We cannot find any systemic insecticides that are labeled for bagworm control. Acephate 75 was labeled for bagworm control but due to new EPA regulations they were forced to change the label and exclude using the product as a systemic. You should also note that systemic products are not the best choice if you already have damaging pests present because the products can take weeks or even months to translocate through large trees from soil applications. The best treatment for bagworms is a direct foliar spray with Talstar.
Answer last updated on: 08/16/2011