Sadly, all are testing OE positive-photo
Sadly, all are testing positive for OE. And heavily infested, despite cleaning the leaves with bleach water and rinsing and lots of careful disinfecting. Had to freeze 5 butterflies and 12 cats today, was a sad day. The local vet let me use their microscope and took this picture of one of the butterflies (scotch tape pressed to abdomen)
The large ovals are butterfly wing scales. The dark clusters are OE spores.