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Tree Fruit News October 2022


Fall Nutrient Sprays in Tree Fruit

Comparison of Postharvest Spots

Bitter Pit Description: Small sunken lesions predominately on the calyx end and not associated with lenticels. In severe cases, spotting may extend to the upper half as well. Fruit may not show external signs at…
Red Delicious apple with blue mold side infection showing blue-green spore masses.

The importance of room and bin sanitation to reduce postharvest decay

It is important to prepare adequately to minimize decay rates during the long storage period.

Pear IPM Post Harvest Sprays

The end of pear season is finally upon us. One topic of discussion is the potential need for and strategy for postharvest sprays to manage overwintering pear psylla. Here we will discuss some potential benefits…

Cosmic Crisp – 2022 Pre harvest observations

Written by B. Sallato and I. Hanrahan, October 2022.  Growers are starting to harvest their WA 38 orchards, and while it is still early to talk about the overall quality of ‘WA 38’ for this…
A cherry tree with green leaves next to one with dropping leaves

Early Fall Defoliation in Sweet Cherry

In perennial species, natural leaf senescence in the fall is part of a remobilization of mobile nutrients and carbohydrates to wood, buds and roots.

Recomendaciones de madurez de cosecha para distintas guardas comerciales de WA-38 en el 2022

Use this guide in addition to the published marketing and quality standards for the 2022 crop year. First ship date for fruit produced in the 2022 crop year: December 1, 2022.


Smart Orchard Field Day: G.U.S.S. Demonstration

In this video we will learn what is GUSS technology and how it works. We will also see a demo spraying in a commercial apple orchard.

Smart Orchard Field Day: Smart Apply/RDO Demonstration

In this video, we will learn what smart guided systems to spray. How it works, and how to calculate the application rates. We will also see a demo of spraying in a commercial apple orchard.


Actualización de conocimientos en WA 38 (Español)

Día de campo en la estación experimental de la WSU, Roza farm en Prosser. Hablaremos de los ensayos en ‘WA 38’ para el manejo de la quemadura por sol, green spot (mancha verde) o bitter…

Stakeholder Listening Sessions

Join the Washington Tree Fruit Extension team to give feedback on Extension needs and priorities for 2023. Listening sessions will be held in north, central and south central Washington October 25 and 27. Your feedback…
Washington State University