Black stem borer (BSB) BSB, Xylosandrus germanus, also known as the alnus ambrosia beetle, is an invasive beetle from Asia accidentally introduced into central Europe […]

Populations of spotted wing drosophila (SWD; Figure 1) are likely to increase in the next few weeks as is the normal progression of this insect […]

Phenology This week at the West Madison Agricultural Research Station (WMARS) in Verona, WI, all cultivars have berries that are still hard and green, E-L* […]

Caseload has been high at the UW Insect Diagnostic Lab over the last two weeks.  A summary of recent fruit crop insects reported to the […]

In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The […]

In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The […]

Symptoms of grape diseases have shown up in the vineyards at the West Madison Agricultural Research Station (WMARS). Due to the recent drought conditions, disease […]

The UW Insect Diagnostic Lab is in full “summer mode” based on the high caseload coming into the lab.  A summary of recent fruit crop […]

Marquette grapes at the station are at about 10% flowering. Zestar, McIntosh, and Cortland apples are all at or past 20mm fruitlets.

Japanese beetles (Fig. 1) have now been observed last weekend around Dane county, but not yet at any of the vineyards we are monitoring for […]