https://decisionaid.systems/Fire Blight damage

Planning for Fire Blight Prevention

Monday Apr 15, 2019

As Fire Blight season approaches make sure you have your fire blight plan in place. Most products work best when applied within the 12-24 hour window before a wetting event so a good plan is critical to timely execution. Know your high-risk areas, calibrate your sprayers, have products on hand, and be agile to change plans when mother nature and thinning change the reality for you. Check out our newly updated Fire Blight Page for ideas on improving your programs. Any time there are blooms on the tree there is risk of fire blight.

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Degree-Day Models

Monday Apr 08, 2019

Have you ever wondered why different pests have different degree-day sums? Here is why:

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How to Effectively Manage Codling Moth

Monday Apr 08, 2019

Without any intervention, codling moth numbers increase about four-fold from generation to generation. Therefore, targeting the first generation is important to reset the population size to a minimum. Control measures for subsequent generations can be adjusted to the local pest pressure indicated by trap counts.

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San Jose Scale Management

Monday Apr 01, 2019

San Jose scale is a relatively easy pest to control, but a dangerous one to leave uncontrolled. After a few years of infestation, limbs and even entire trees can be killed if heavily attacked, and high percentages of the fruit can be infested. Large trees are most often associated with scale problems, because of the suitable habitat they provide and the difficulty of obtaining good spray coverage. However, young trees can also develop a scale problem surprisingly quickly. San Jose scale is a pest that is easily prevented, but hard to control if the populations have built up too much.

https://decisionaid.systems/Cherry Powdery Mildew Symptoms

Powdery Mildew of Cherry: Fungicide Resistance Management Guidelines Spring 2019

Monday Apr 01, 2019

Cherry growers in the Pacific Northwest have multiple fungicides at their disposal for managing powdery mildew. Products in the powdery mildew “toolbox” include members of the DMI, QoI, SDHI, quinolone synthetic compounds and multiple “contact” fungicides from other classes (e.g. sulfur and narrow range petroleum oils). A more inclusive list of fungicides is presented in the table below. The table includes fungicide class information, Fungicide Resistance Action Committee (FRAC) group number or code, and resistance risk.