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Old January 19, 2017   #9
BigVanVader's Avatar
Join Date: Mar 2014
Location: Greenville, South Carolina
Posts: 3,049

Originally Posted by PhilaGardener View Post
Glad your Internet is back up and running, Carolyn!

Kaolin sprays, like Surround, also have potential in preventing ice crystal damage and are acceptable to a wide variety of growers.

"In his (ARS' Michael E. Wisniewski, a plant physiologist at Kearneysville) tests in environmental chambers, kaolin-treated tomato and bean plants have withstood temperatures as low as 21°F (-6°C). They normally die when the thermometer drops to 28°F (-2°C)."
I used Surround last year and was impressed. I plan to use it more regularly and heavy this year. In a greenhouse it is a silver bullet to protect against temp extremes and seemed to help keep everything off the plants. Even disease spores.
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