Dear Lee Valley,
This picture shows my father's remedy for cutworms. He is
82 years old and loves his tomato plants. He taught me this
idea of using 1/2-inch polyethylene slit loom to stop the
cutworms. It has stopped the damage to his tomato, pepper
and bean plants.
He got the roll of wiring loom from the local hardware store
and cut it 3 to 4 inches long. When he transplants his plants
from his greenhouse to his garden, he puts the slit loom around
their stalks. When the plants are mature, he removes the loom
and saves it for the following year. He has done this for
many years with great results.
I thought this might be helpful to your customers.