Seedheads, dollar spot and more.

Seedheads, dollar spot and more.

by | May 23, 2022 | Disease, Insect, Weeds

The entire state of Pennsylvania finally received some warmth over the weekend with some regions cracking 90F on Saturday. Although temperatures held in the 80’s on Sunday, this week continues to track back to the high 60’s to mid 70’s. However, warmer temperatures are set to return this weekend and this is where active pests will start to pick up.

Weeds

As has been reported previously, this has to be one of the worst year for Poa seedheads on record. We continue to see seedheads flourish in all areas from putting greens to home lawns. Having said that, seedheads in the lower cut turf does seem to be subsiding quicker than in turf sites maintained at a higher height of cut. The broadleaf weeds are in full swing as well and crabgrass has germinated throughout the state. If you missed your preemergence timing, you might want to consider your postemergent options.

Diseases

We have continued to see Microdochium patch active during recent periods of cooler temperatures in combination with moist conditions. I suspect that this will subside by the weekend as warmer temperatures move in. Dollar spot popped up in Central PA this past weekend and I suspect it’s been in the warmer parts of the states for a bit longer. Look for dollar spot to take off in the next couple of weeks as it becomes the number one nemesis on everyone’s minds. Luckily, we are still early for summer time diseases like brown patch and Pythium, but don’t let the calendar dictate your decisions. Pay attention to the forecast and make decisions accordingly.

Insects

According to WeevilTrak, annual bluegrass weevils are in Stage 3 throughout much of the state with the exception of northeast PA. Traditionally cooler, the Scranton area weevils are stuck in Stage 2. Keep an eye out for any current updates from Dr. McGraw on Twitter.

 

Warmer Temperatures Moving In

Warmer Temperatures Moving In

by | May 10, 2022 | Disease, Insect

Colder temps and rain

This spring has seemed to be never ending for turfgrass managers in Pennsylvania and the surrounding regions, but we may be finally getting into some better growing conditions. While many have been battling winterkill caused by some early warm temperatures followed by some deep freezes, it seems that things are starting to look up around the state.

Last week we experienced some persistent rain that placed itself over much of central and eastern Pennsylvania. Relatively cool temperatures meant that the grasses were not growing much and the excessive rain caused some minor headaches. At the Valentine Research Facility, our plots were under water for a period of time. According to Dr. McGraw, the heavy rains also resulted in a massive emergence of the marsh crane fly in central PA.

Diseases developing just south of us

A quick trip to visit Dr. Fereshteh Shahoveisi, the new turfgrass pathologist at the University of Maryland, made me realize just how much of a difference a couple hundred miles south can make on pests. Dollar spot has been active in the Washington, D.C. area for about 3-4 weeks already and they were also experiencing some spring dead spot and large patch damage on bermudagrass and the excessive moisture likely isn’t helping things. Take all patch on newly established bentgrass has also been reported.

Short term outlook

Looking at this week’s weather forecast for Pennsylvania, it looks like much of the state will be in the mid 70s to low 80s with scattered showers. Those of you in warmer areas may need to be on the lookout for dollar spot, but the cooler areas might be a couple of weeks away. As always, the moisture and relatively mild temperatures should have you on the lookout for a variety of early spring diseases including brown ring patch, cool temperature brown patch, and even Microdochium patch. We’re still a few weeks away from the thick of it, but so far this year is looking like it will be a pretty active disease season.

Sending samples

If you have any issues that require a look, don’t hesitate to give us a call. We are happy to take a look at any samples you would like to have diagnosed. It’s always best to have a positive ID to ensure that your management strategies are targeting the right pests.

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