Sevin (carbaryl) is an effective pesticide for use on budworm as well as other chewing insects, but it is toxic to honeybees and must be applied frequently. The safest, most environmentally-friendly remedy is to use Bacillus thuringiensis (BT), a biological control that is widely available.

What insecticide kills budworms?

Bacillus thuringiensis insecticides are comprised of a naturally occurring bacterial disease that infects and kills budworms effectively.

Can I use Sevin on petunias?

If properly applied, Sevin is safe for flowers. However, overusing Sevin can affect flowers in the long run by causing insect resistance. When insecticides are used frequently at high rates, insects can become immune, causing more problems for flowers.