My kindergarten class is currently studying insects and we need your help. I just happen to catch this one on video and digital format in the early evening. I live in the north Dallas area in Hickory Creek, Texas. This moth was savoring the nectar from my Indian Hawthorne bushes in bloom! On another point, I need your help in saving my mature oak tree from caterpillars this year. Last year, the entire tree was covered with gobs of webs! I am afraid my tree may die and it is also very annoying to have these clumps falling down on my patio and yard. Is there some type of treatment I can administer to the root system? The tree is too large to spray and there are way too many places to treat.
Lake Dallas Primary Kindergarten
Your moth is indeed a Striped Morning Sphinx or White Lined Sphinx, Hyles lineata. it is probably the most common Sphinx Moth in North America with a coast to coast distribution. We know of no systemic for caterpillar control. Caterpillar populations are frequently cyclic, culminating in a year of overpopulations before the numbers stabilize once again. Caterpillars eat leaves, and this will not seriously impact the health of a mature tree.