why are there holes in my tomato leaves?

Question

All the plants (well, all seven) are growing like crazy, strong and robust. However, I see holes, not quite as big as a pencil eraser, on many of the leaves. What’s up and what should I do?
Thanks!

Answer 1

It could be flea beetles, caterpillars (specifically Tomato Hornworm) or it may be a disease called Grey Leaf Spot.

These articles will help you determine which it is and what to do about it:
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-are-flea-beetles.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-hornworms-control.htm
https://aggie-horticulture.tamu.edu/vegetable/problem-solvers/tomato-problem-solver/leaves/gray-leaf-spot/