Growing with growers since 1946
  • April 1st 2011 Issue
  • Story by Richard Lehnert
  • Does ARM still work in modern orchards?

    Studies show alternate row middle spraying remains effective with smaller trees and new pesticides.

    Penn State entomologist Dr. Larry Hull has spent much of his 35-plus-year career perfecting and advocating a technique called alternate row middle (ARM) spraying for insect control. The technique started in New York, came to Pennsylvania in the 1960s, and quickly caught on and became widely used by growers across the eastern United States. There are many benefits when compared to every row middle (ERM) spraying, Hull said, including: Reduced overall pesticide load. Growers usually apply a third to two-thirds the full per-acre rate of insecticide. They only spray each tree from one side. Reduced application costs in time, labor, […]

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