The power of Monterey B.t. in a ready-to-use convenient spray!
Monterey B.t. Biological is an all-natural, OMRI-listed insecticide that targets worms and caterpillars. It contains the active ingredient kurstaki. Kurstaki is a subspecies of the naturally-occurring bacteria Bacillus thuringiensis. Once ingested, Monterey B.t. causes disease in the digestive systems of worms and caterpillars. This sickness causes insects to stop feeding and die. Use Monterey B.t. Biological Insecticide on your fruits, vegetables, shade trees, and flowers. You can safely apply Monterey B.t. Biological Insecticide any time, including the day of harvest. For best results, apply directly to plants at the first sign of an infestation. This bottle covers up to 165 square feet.