Bagworms-June Is the Time to Treat
Wednesday, June 9th, 2010What is a bagworm?
June is bagworm season. Many people don’t realize they have bagworms because they camouflage themselves. They form a 1 ½ – 2-inch bag that hangs downward from the branches and is gray or brown colored. Many people mistake them for small pine cones. But inside that bag is the female bagworm and, depending on the time of year, all of the eggs she has laid.
Damage: The bagworms attack both deciduous trees and evergreens, but their favorite plants are juniper, arborvitae, spruce, pine and cedar. Bagworms wrap a strong piece of silk around the branch or twig to attach themselves. This can girdle the branch and cause it to die. Sometimes this damage doesn’t show up until the next season when the branch grows bigger and is strangled. Bagworms also strip the plant of foliage as they eat. To move from plant to plant, bagworms can either suspend themselves on silk and let the wind carry them or larger larvae can crawl short distances.
Life Cycle: By early fall, the larvae permanently suspend their bags. Males emerge as furry black moths with clear wings about an inch wide. The females don’t develop into moths, but remain worms and wait inside their bags. They emit a strong scent to attract the males who mate through a hole in the bottom of the bag. After she has laid several hundred eggs inside her bag, she dies. The eggs will hatch the following May and crawl out of the end of the bag in search of food. They use silk that they produce along with plant materials to make a small bag around their hind end. This gives them the appearance of tiny ice cream cones. As they feed and grow, they enlarge the bag and hide inside if disturbed. In fall, they form their bags and the cycle starts over.
How to treat them: Adult bagworms can be cut off with a knife or garden shears, but you must be sure to cut the silk band that holds them to the branch so it doesn’t remain and girdle the branch. This works well with small infestations on smaller trees. But many times, infestations can be widespread or occur on taller trees that make physical removal difficult. Then, insecticides are your best choice. The best time to use insecticides is June because the small larvae are more vulnerable to insecticides. Call Heritage if you need help getting rid of bagworms or any insects on your trees, shrubs or lawn. We can take care of it for you.










l on trees and it makes for picture postcard views. Like everything too much of a good thing is not a good thing. If the snow builds up too much it can weigh down the branches and cause them to break. This can be more of a problem on evergreens and multiple trunk trees and shrubs. The best thing to do is to gently shake the snow off the plant but be careful not to break any branches. If the snow becomes frozen and stuck to the plant just let it melt off on it’s own. If you shake it too hard trying to remove ice and frozen on snow you run the risk of breaking the branches. So enjoy the view but if you notice the trees and shrubs bending to the ground a gentle shake can avoid future permanant damage.
With this cold snap and now a short warm up we will see some freeze and thaw and refreeze each day. You need to be aware that your walks and driveways could become slippery again each morning and evening. What to do? The best thing is to keep the walk surfaces clear of snow and ice and manage your snow piles so that when they melt they don’t run back onto the walkways. When that isn’t possible try to use products like sand or kitty litter to add traction to these areas when they are frozen. Ice Melt products are great when used properly for loosening the ice and snow from the surface so it can be shoveled off but aren’t designed to be re applied over and over for a refreezing situation. Ice Melt products are salts, and when the concentration gets too high they can burn the turf and plants around the hard surface you are treating. Not to mention it can be hard on the concrete too. What are other options you have tried?
Instead of just counting your blessings over your thanksgiving meal, make it a point to count your blessing once each day of the holiday weekend. Try not to count the same things twice and you will see how truly blessed you are.
