Ahhh, another benefit I found with the landscape fabric. I could see the little 'poo pellets' left by a stray horn worm here and there on my tomatoes, and could zero in on his location. I always have a pair of hand shears in my back pocket, and I dispatch those critters quickly. Last year, I found one that had gotten to 5 or 6 inches and was as big around as my thumb! Ick!
Horn worms will make a clicking sound if you shake the plant and listen...
Oh man...I was born in Amarillo ‘54...have seen BIG GREEN WORM...become JustadumbwormterminatorBlonde?