white powdery mold

Sycamore seedlings are growing fast the largest are about 8" bigger than some of the oaks,
from research it seems direct sunlight is recommended at this point. Mine have been inside under energy saving bulbs. The high humidity and heat has resulted in the growth of what is
called white powder mold. The home remedy for this non- fatal but unsightly hitch hiker is a spray of 1 gallon water mixed with 1 tablespoon baking soda and 1 teaspoon of dish washing detergent.
It is recommended to spray one plant and see how it responds. The result i got was a not so happy looking plant with the mold dispersing into splotches, I recommend putting the solution
on a cotton tip swab and gently removing the mold. Throw away after each leaf so not to spread mold.