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WSU Decision Aid System Update July 2023

Written by Liesl Oeller, Washington State University, July 5, 2023

The new spray selection tool is launching soon on DAS. To use this new tool, subscribe to DAS.

Spray Selection Tool

We are excited to introduce a new feature to DAS – the spray selection tool. The Washington State University tree fruit crop protection guide has always been available online, and now this tool is integrated into the DAS platform. The spray selection tool allows users to select their crop, growth stage, and target pest or pathogen. The guide then shows a list of possible materials to apply, and their efficacy on your target and other important pests.




Avaunt more info

Target:……………. Lacanobia more info

Efficacy:…………. 4

Class: ……………..

Moa: ……………… 22

Rate (per acre):.. 3-6.00 oz

Stage:…………….. Late spring and summer

Type:……………… Insecticide

Toxicity:…………. Caution

PHI:……………….. 14 d

REI:……………….. 12 h

When you select the material you want to spray, you are given more information on the efficacy, type of chemical, rate per acre, REI, and more. This tool will be available in the coming weeks, so keep an eye out on DAS and coming updates!

New DAS Features

Check out our new tools to make your life easier this season! Our time machine tool allows users to go back up to 5 years in history to view output of any DAS model. Checking degree day accumulations for past years may help you better plan the timing of upcoming management. Our other new alerts feature provides advance alerts of when key events, like degree day accumulation and life stage emergence, will occur. Sign up for these email or text alerts today!

For weekly updates on DAS models and tools, subscribe to our mailing list. Now is the perfect time to subscribe to weather stations on DAS, get started today!


Liesl Oeller

Liesl Oeller
Washington State University
(509) 335-5815



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Use pesticides with care. Apply them only to plants, animals, or sites listed on the labels. When mixing and applying pesticides, follow all label precautions to protect yourself and others around you. It is a violation of the law to disregard label directions. If pesticides are spilled on skin or clothing, remove clothing and wash skin thoroughly. Store pesticides in their original containers and keep them out of the reach of children, pets, and livestock.

YOU ARE REQUIRED BY LAW TO FOLLOW THE LABEL. It is a legal document. Always read the label before using any pesticide. You, the grower, are responsible for safe pesticide use. Trade (brand) names are provided for your reference only. No discrimination is intended, and other pesticides with the same active ingredient may be suitable. No endorsement is implied.


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