Mother Natures answer to troublesome insects.Neem oil is one of the most established preventative measures in the gardening industry.If you run a perpetual harvest or keep longterm stock plants you should be spraying this weekly on all vegetating plants to prevent bugs from getting established.We consider this or Buzz Off essential,especially if your growing organically. Helps against Leafhopper,Aphids(Green/Black Fly),White Fly,Mites and also diseases like Black Spot,Mildews,Moulds and Rusts etc. Makes 12.5ltrs.