Bagworm Facts & Information
Protect your home or business from bagworms by learning techniques for identification and control.
How do I get rid of bagworms?
What You Can Do
Inspecting plants for the presence of either old or new bags is the first step toward prevention and control of this defoliating pest. Be thorough when inspecting since the plant’s dense foliage may hide some or all of the bags.
Inspection can be done at anytime of the year, but the best times are the late fall or winter before bagworm eggs hatch and larvae begin to feed and disperse.
What Orkin Does
Your local Orkin technician is trained to help manage bagworms and similar pests. Since every building or home is different, your Orkin technician will design a unique moth treatment program for your situation.
Orkin can provide the right solution to keep bagworms in their place.
Behavior, Diet & Habits
Color: Full-grown larvae are grayish in color.
Body: Adult males have wings, but adult females are worm-like and do not have legs or wings. Adults are about an inch long.
Characteristics: Bagworms are also referred to as evergreen bagworms. These insects have bags that are about one to two inches long and will increase in size as the bagworm larval stage grows.
Since female bagworm moths cannot fly, larvae are responsible for infesting other trees as they move from one host tree to another, or if they are introduced via infested nursery plants.
These pests feed on plant needles or leaves from different types of trees including:
Bagworms may live in places such as:
Bagworms complete their life cycle by going through four stages:
The eggs are deposited inside the female’s bag where they will overwinter. A female lays anywhere from 300 to 1,000 eggs inside the bag, and subsequently dies. In the spring, the eggs hatch from silk thread and each larva begins to construct its own case with tree foliage, where it will live throughout its larval and pupal stages.
The larvae will enlarge the case as it grows and moves about by partially emerging its head and legs to feed and move to other locations. Being more or less immobile, female bagworms never leave the bag they built while they are immature larvae.
The insect enters the pupae stage once the larval stage is complete. They stay in the bag until they are adults.
About one month later, the adult male moth will emerge and fly to the female’s bag where mating occurs.
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