SNS 217C Mite Control formula provides a barrier between plants and spider mites. Made from 100 percent pure botanical extracts, this all-natural formula contains fatty acids and salts from rosemary extracts, which disrupt insects' cell structures and suppress their life cycles. Also effective in killing spider mite eggs. Great for use on plants, vegetables and trees. 1.5 oz pouch makes 11.5 oz RTU.