This campylomma adult at Washington State University Tree Fruit and Extension Center in Wenatchee, Washington, last July was one of the insects gathered by Tianna DuPont and Chris Strohm for WSU’s pear IPM project. (TJ Mullinax/Good Fruit Grower) Pear psylla in 2016 to 2017 was “the worst in a decade,” Bob Gix, horticulturist for Blue Star Growers, said. Psylla don’t directly feed on pear fruit. Instead the sticky honeydew they excrete marks fruit and makes a sticky mess that is no fun for pickers. After multiple difficult psylla years, growers in Washington’s Wenatchee River Valley were looking for answers. “Our […]