Insect eating the leaves of my turtlehead
What to do? Some leaves look crinkled, and on others the leaf is eaten between the veins. It has a white cottony substance under some leaves. Have not actually seen a bug on any of the plant. What is it and how do I get rid of it?
Most likely a case of Mealybugs.
Neem Oil is a good treatment plant.
Here are links that have more information.