Further analysis of WA Codling Moth Management Practices Grower Survey
Author: Christopher Adams
Published: 2023
Summary: Despite these survey data being relatively messy and the samples sizes being quite small, there are a few very interesting takeaways: • Apple operations are experiencing consistent, unacceptable codling moth damage in a way that pear operations did not report. • As apple operations grow a higher percentage of their acreage in organic, their threshold for CM damage goes up • Central Leader (older trees) dominate as the most problematic tree structure across apples and pears • Across organic, transitional, and conventional acreage, large apple operations reported significantly increased costs associated with CM control, relative to smaller operations. • Most folks should be checking their tank pH more regularly • Larger apple operations look to be spraying their high pressure areas more often than small operations. The survey was created and distributed by the Codling Moth Task Force Committee appointed and supported by the Washington Tree Fruit Research Commission in 2020. The committee was comprised of growers, university researchers, and industry leaders. Data were compiled by Chris Adams. Analysis was done by Matt Jones (Cascade Agroecology, LLC ) and Tobin Northfield (WSU-TFREC).
