Pesticide-Free Production (PFP): an idea drawing farmers to practice integrated pest management.
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R. C. van Acker | Orla M. Nazarko | Martin H. Entz | Gary Martens | D. A. Derksen | B. Irvine | T. Andrews | M. Entz | D. Derksen | B. Irvine | R. V. Acker | O. Nazarko | Gary Martens | T. Andrews