Category: Orchid Doctor

PHYSAN 20: Sterilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It takes 10 or more minutes to sterilize tools in it. A79-1022Plastic pots can be disinfected in a solution of 1 ttpg.; rinsing afterwards is not necessary as the plants are not harmed on contact. ... Read More

PHYSAN 20: Sterilizing Equipment

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is effective against virus if the soaking lasts overnight. A75-1090 Read More

PHYSAN 20: Tested as a Disinfectant for Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One-fifth ounce in one gal. water inactivated the crude juice of Tobacco Mosaic Virus; one ounce in three gals, water inactivates it on cutting tools, work bench, pots, compost, tags, stakes, hands... Read More

PHYSAN 20: Wide-spectrum Fungicide and Bactericide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Composed of n-alkyl dimethyl benzyl ammonium chlorides. AH15 Read More

PHYSAN AND TRUBAN: Mixing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Physan has a pH of 6.55 which is practically neutral and can be mixed with Truban, A76-611 Read More

PHYSAN: Bacterial Action

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Studies have shown that it has good action in combatting bacteria as compared with other agents, especially on the germs Enterobacter and likely Erwinia; considerations of associations with excreme... Read More

PHYSAN: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is quite alkaline and if combined with another alkaline product such as soap it might cause a problem. A88-296 Read More

PHYSAN: Its Various Uses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It can be used for cleaning benches, sterilizing pots, etc. at lttpg.; for treating damping-off on seedlings at 1|tpg; for combating bacterial rot, at 2tpg. A82-487 Read More

PHYSAN: Not Registered for Use on Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Its use could be authorized by the U.S. Dept. of Agriculture; it requires sufficient pressure brought to bear through petition. A86-915 Read More

PHYSAN: Viruscide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago All quaternary ammonium compounds, which this is are oxidizers and when used to sterilize cutting tools they need to be dried out for the necessary action to take place. OA81-152 Read More