mixing physan 20

[monarda286]

How much physan 20 for just one gallon of water----bottle says 2tsp for 20 gallons

[orchidlady]

That would be 1 tsp per 10 gallons, so would be 0.1 tsp per gallon. That equates to about 1/2 of a ml (milliliter) per gallon. If you have access to a smaller syringe that is in ml, that would probably the easiest way to measure.

Susan

[Brutal_Dreamer]

Thanks Susan!

Cheers,
BD

[monarda286]

Thanks for the info Susan.

[Raver]

I think its supposed to be 2 tsp per gallon or water. I just checked my physan 20 and thats what the instructions say

[Bikerdoc5968]

I have to agree with Raver. While I don't use Physan 20 made by Maril Products, Inc, 320 West 6th Street, Tustin, CA 92780 1-800-546-7711, I do use the competition, SA 20 made by Southern AG. It is EXACTLY the same chemical formulation. For use on orchids as a disinfectant, fungicide and algae control, the recommended concentration is 2 TEASPOONS / gal of water. I spray everything in the greenhouse; plants, pots, benches, greenhouse glass and floors about every 3 weeks or so.

[Raver]

i spray mine on a monthly basis, every 4 weeks or so =)