Give powdery mildew, black spot and rust their marching orders with FungusClear Ultimate 2 Concentrate. Certified for organic gardening and powered by elemental sulphur, this little bottle is enough to mix up to 10.5 L of ready-to-spray goodnessplenty to blanket your greenhouse,grow tent, balcony jungle or grow room in one go. A quick mist knocks back existing outbreaks and lays down a protective shield to keep foliage looking healthy.