Spp. (the larvae of which bore in to the stem of the plant to obtain air from the air lacunae which transport air from the leaves towards the roots). Evapotranspiration systems have one of a kind drainfields. The base of your evapotranspiration system drainfield is lined with a watertight content. https://www.prlog.org/12986538-mastering-septic-tank-cleaning-expert-tips-for-healthy-home-and-environment.html