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Crabgrass infested lawn. Photo: P. Landschoot, Penn State
July 7, 2017

During rainy summers, annual grasses can be an unsightly weed problem in many Pennsylvania lawns.

The African Sunset petunia is one of the genetically engineered varieties that the USDA is asking breeders to destroy. Photo: S. Adam, Penn State
June 26, 2017

As horticultural producers of bedding plants are winding down the busy spring season, it came as a shock to many that some of the petunias being produced are actually illegal.

Acer rubrum Red Sunset® on a commercial site with suspected glyphosate damage. Photo: S. Feather, Penn State
June 26, 2017

Glyphosate is the active ingredient in non-selective, systemic herbicides sold under a variety of trade names – Round Up, Accord, Glypro, Touchdown, Rodeo, Eraser and many others.

June 26, 2017

Stormwater which is the water that runs off of houses, streets, parking lots, and any other hard surface during rain events, has been identified as a major cause of water pollution in recent years.

Sowbugs and pillbugs congregate in moist areas. Photo by Sinclair Adam.
June 20, 2017

We hear periodic reports of sowbug and/or pillbug outbreaks in greenhouses and high tunnels in Pennsylvania.

Photo: P. Landschoot, Penn State
June 12, 2017

As summer approaches, plans are being finalized for disease prevention and control programs. One group of fungicides, the succinate dehydrogenase inhibitors (SDHI), has taken a more prominent role in controlling turfgrass diseases and provides an alternative to fungicides in other mode-of-action groups for resistance management.

White grub damage in a residential lawn. Photo: N. Bosold, Penn State (retired)
June 9, 2017

White grubs are probably one of the most common turfgrass insect pests encountered in Pennsylvania lawns.

Spotted lanternfly 4th instar nymphs. Photo: E. Swackhamer, Penn State
June 2, 2017

Lycorma delicatula, commonly known as the spotted lanternfly (SLF), is a new invasive insect in southeastern Pennsylvania.

Photo: Howard F. Schwartz, Colorado State University, Bugwood.org, dandelion, Taraxacum officinale
June 1, 2017

Dandelion is a perennial weed of lawns, landscape ornamental beds, and nurseries.

Upper surface of affected shrub rose showing round leaf spots with an orange center on yellowing leaves. Image: R. Benner, Penn State
May 31, 2017

Rose Rust is uncommon on ornamental roses in Pennsylvania but it does occur, especially in mild, wet spring conditions.

Photo: P. Landschoot, Penn State
May 30, 2017

Whether you are renovating 18 putting greens or just overseeding one green that sustained damage from a disease or winterkill, choosing the right bentgrass cultivar is critical for long-term performance of your putting surfaces.

When retail greenhouse space gets scarce, plants literally get stacked up. Photo: L. Stivers, Penn State
May 30, 2017

Timing product supply and quality with peak customer demand is often a challenge for greenhouse operators. What happens when poor weather keeps customers at home, and retail greenhouses get crowded?

May 30, 2017

The purpose of this free manual is to provide recommendations to land managers and landscape contractors on best management practices for effectively conducting organic land care.

 Photo: P. Landschoot, Penn State
May 26, 2017

On May 22, 2017, I received a call from a golf course superintendent in central PA about a disease that was producing yellow circular patches on his annual bluegrass greens.

Aerial image of Penn State’s research hopyard at Rock Springs. Photo by T. Delvalle, Penn State
May 16, 2017

You probably have heard of (or observed) the use of small unmanned aircraft systems (sUAS) throughout the country; whether it be for fun, a hobby, for capturing great aerial pictures, or commercial use.

Four-lined plant bug adult. Photo: S. Feather, Penn State
May 4, 2017

Four-lined plant bugs, Poecilocapsus lineatus, become active in May. They are one of the few pests that injure a wide variety of plants, including herbs that are rarely bothered by anything else.

Altenanthera spp. Photo: T. Ford, Penn State
May 2, 2017

Elevated sodium and elevated chloride levels are being observed more frequently in private water supplies in rural areas.

Spotted lanternfly nymph. Photo: E. Swackhamer, Penn State
May 2, 2017

Erica Myers, a Penn State Department of Entomology graduate student, observed the first 2017 sighting of a Spotted Lanternfly, Lycorma delicatula, nymph in Oley, PA (Berks County) on April 26, 2017.

Black walnut fruit. Photo: K. Salisbury, Penn State
May 2, 2017

Black walnut is one of the last trees to leaf out in the spring and one of the first to lose its leaves in the fall.

May 2, 2017

Plant cell wall growth is typically described as a simple process, but researchers using a microscope that can resolve images on the nanoscale level have observed something more complex.