Western Flower Thrips

Friday Mar 21, 2025

Western flower thrips feeding causes bloom distortion and poor fruit set. Egg-laying punctures create "pansy spot" on some cultivars. Adults can be sampled using either beating trays or blue sticky cards.

Weather Data Makes DAS Run

Friday Mar 21, 2025

Around-the-clock and accurate weather data are at the core of DAS. But when they are missing, DAS cannot make model predictions. While insect and plant development models are less prone to disruption, disease models cannot run without the necessary weather input.

Most Effective Strategies for Control of Obliquebanded Leafroller

Saturday Mar 15, 2025

Timing is everything when it comes to effective pest management. Knowing when a pest is susceptible to which kind of pesticide is the key for successful control.

Monitoring Adult Codling Moth

Saturday Mar 15, 2025

Adult codling moth (CM) are monitored with traps baited with either CM pheromones or a mixture of pheromones and an attractant (Combo D/A lure). Pheromone traps should be placed in the upper 1/3 of th...

Introducing the WSU Pesticide Spray Record Evaluator

Friday Mar 07, 2025

At some point, many of us have heard from a grower or friend that "it's been a really bad year" for the control of a certain insect pest or "it's so bad we're going to need to pull this orchard out of organic management." While there are many causes for flare ups of a pest population, it begs the questions, 'when were treatments applied?' and 'which treatments in the spray program had the greatest effect on the pest population'?