That's interesting, Sue. Thanks. I thought that anything that ate the leaves with the Bt on them would be affected.
@sequoia Appreciate your point of view there, but I'm sure none of us indiscriminately spray Bt all over our yards. I have many butterflies in my yard, yet I do use Bt selectively on plants that are affected by certain caterpillar pests. No butterfly host plants are ever treated.
This one posed for me just yesterday:
