By: Christelle Guédot, UW-Madison, Department of Entomology Actara is registered for use in Wisconsin on several fruit crops including pome fruit, stone fruit, berries and […]

Allison Jonjak, Christelle Guédot, Jed Colquhoun, and Leslie Holland As disease treatment windows close and we start counting insect number, continue degree day accumulation, and […]

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 […]

Japanese beetles have barely started to emerge in Wisconsin and they have become worrisome for apple growers in the last couple years. Japanese beetles are […]

I received last week some pictures of these very interesting larvae within their casing made of grass blades and twigs (Figs. 1 and 2). The […]

The first spotted-wing drosophila (SWD; Fig 1) was collected June 9th in one of our monitoring trap serviced by Hanna McIntosh for our mulch study.  […]

Black stem borer (BSB), Xylosandrus germanus, also known as the alnus ambrosia beetle, is an invasive beetle from Asia (primarily Japan, Korea, Vietnam, China, and […]

Cranberries are highly reliant on insect pollination to achieve optimal yield. Most growers ensure the delivery of pollination services through rented honey bee colonies, though […]

The scouting this week at the West Madison Agricultural Research Station did not result in any insect activity to report. Only one grape phylloxera gall […]

Several marshes scouted Tuesday May 18, 2021 revealed the presence of small leafhopper nymphs that are strongly suspected to be blunt nosed leafhoppers (BNLH). As […]