Hugh Fraser, MSc. P.Eng., Ontario Ministry of Agriculture, Food and Rural Affairs at Vineland recently wrote the Factsheet, Wind machines for minimizing cold injury to horticul-tural crops (Order #10-045). It lists many Best Management Practices for operation for the 500 wind machines in Ontario which are mostly used to protect grapes from cold injury. See http://www.omafra.gov.on.ca/english/engineer/facts/10-045.htm