I have heard of this before. Since I have access to online journals via my university, I looked for recent findings. Here's what I dug up, but it must be taken with a grain of salt as it's a thesis from an undergraduate college:
From : GREENHOUSE SANITATION: EFFICACY OF DISINFECTANTS ON CUTTING BLADES USING TMV ON PETUNIA AS A MODEL (2008)
"All treatments tested reduced incidence of TMV infection from contaminated razor blades. The most effective one-minute disinfectant treatments in these studies were: 20% non-fat dry milk, 20% non-fat dry milk plus surfactant, 1:10 household bleach, and 1% VirkonŽS. [.....] Of the two treatments which provided zero percent incidence of transmission, bleach is corrosive to cutting tools, and thus non-fat dry milk is the preferred treatment. The method by which milk is able to prevent transmission is unknown; this warrantsfurther study."
An other interesting piece of info I found is that industry professionals recommend that their workers wash with non fat dry milk (or skim milk) after normal hand washing. I also discovered that milk also works against powdery mildew.
There have been some studies that have suggested that the milk proteins encapulate virus particles, and so disabling virus transmission.
Completely orchid obsessed and loving every minute of it....
My Orchid Photos
Last edited by camille1585; 05-07-2009 at 10:23 AM..