Over the last couple of years new research on bitter pit has shed light on this very complex issue. We used to think of bitter […]

Zestar is at about 30mm. Cortland and Honeycrisp are both at about 20mm with good fruit set. Marquette is at post bloom and approaching buckshot. […]

Mating disruption (MD): pheromone-based tool where dispensers of artificial sex pheromones from (usually) females are placed in orchard and reduces the probability of males finding […]

Zestar is approaching 12mm. Honeycrisp and Cortland are around 10mm. Marquette and Itasca are between 10-14” of growth. Montmorency are out of the shuck and […]

In 2022, the PDDC continues to provide diagnoses through examination of digital photographs, as well as physical samples.  Click here for the PDDC’s current submission […]

Marquette and Itasca grapes are both at about 3-5” of growth. Zestar is entering post bloom while McIntosh, Honeycrisp, and Cortland are all just exiting […]

Honeycrisp starts flower formation really early in the season and by the time fruits are 30 to 36 mm in diameter, which corresponds to about […]

Grapes: Both Marquette and Itasca grapes at the station are between late bud swell and bud burst. Apples: Zestar is at late pink approaching king […]

After a challenging season last year with increased reports of fire blight, many growers are concerned looking at the season ahead. Wisconsin experienced varied weather […]

In 2022, the PDDC continues to provide diagnoses through examination of digital photographs, as well as physical samples.  Click here for the PDDC’s current submission […]