The pests you’re experiencing are, if I’m correct, bagworms (check out the first link below, to confirm whether or not you’re dealing with bagworms). Bagworms may have actually existed on your cedar plant for a long time, but were struggling to survive. Suddenly, more and more members of the population adapted to the biology of your plant, and BAM! Covered with bagworms.
What can you do about it? You might have to try to remove the population. It would have been much easier to have removed the cocoons in the winter, though. The second link below does contain a table about insecticides for bagworms, BUT such chemicals can be extremely damaging. You can also use pheromone traps (http://www.ehow.com/how_9370_control-bagworms.html) to lure males and prevent further breeding. Your cedar plant might be unsaveable, but you can still prevent the bagworms from moving to any of your other plants by controlling the population.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC