Kaolin Clay For Plants: Organic Garden Insect Control
May 02, 2020· A study conducted in 1985 found that application of kaolin clay to tomato plants grown in very hot, dry conditions in the southcentral US improves yield by providing protection from heat stress. The same study concluded that spraying tomato plants in a nonirrigated field only once with a 5% kaolin and distilled water solution helped the ...