VectoBac is a efficient remedy to soil and hydroponic larvae (Fungus Gnats or Scared Fly)

VectoBac works well when mixed alone with water, and drenched over top of the soil. Our it can be used in hydroponics.

For heavy infestations, Vectobac can be used at double strength 

Soil/Coco - 2.5g or 5g per 10L

Hydroponics - 40g per 1000L