Although Sod web worms tend to pop up between June and August we are actually starting to see there damage already. Initially, what you usually see are the moths flying around. The moths are the female adult sod web worms and they do not cause any damage to the turf and can not be killed because they just fly away. Once you start to see the moths there is a very good chance that within a week to two weeks you will begin to see there damage. There damage is mainly cosmetic first because they eat notches out of the grass blade giving the grass a scalped appearance. However, should the sod web worms not be treated by a professional they can eat the grass right down to the runner of the St Augustine. The best thing you can do is to give us a call and we will take care of them.