So This Is Spring
March 17, 2017
By David A. Oatis, regional director, Northeast Region
Cold weather and snow are likely to wreak havoc with flowering plants this spring.
A mild winter and warm February temperatures have been tantalizing
golfers with the prospect of an early spring. Bulbs are blooming, trees
are budding, and courses in the southern part of the region have already
applied preemergence herbicides and annual bluegrass seedhead
suppression treatments. However, Mother Nature has reasserted herself in
typical fashion. Cold March temperatures chilled bermudagrass back into
dormancy and slowed pest development while single-digit temperatures
and brisk winds bring an uneasy feeling to turf managers in northern
locations. The recent nor'easter brought heavy snowfall, which all but
slammed the door on plant growth and pest development. So, what does all
this mean for golf courses?
- Bermudagrass was off to a fast start this year, but the recent cold
temperatures have stopped it in its tracks. No damage is suspected at
this point, but it will take plenty of warm weather and sunshine to get
it growing again.
- Northern courses that had nondormant putting green turf and
experienced single-digit temperatures should remove and incubate a few
plugs from greens to check for winter injury. Widespread damage is not
suspected at this point, but some injury may have occurred. Incubating
plugs is the most effective way to gauge whether winter injury has
occurred.
- Timing seedhead suppression treatments and preemergence herbicide
applications has been difficult this year due to fluctuating
temperatures; it is not going to get any easier going forward. Courses
that made early seedhead suppression treatments may need to make
additional applications because the seedhead production window will
likely expand.
- Annual bluegrass weevils were active on many southern courses before
the last two weeks of cold temperatures. Hopefully the cold will knock
back their populations, but that may be hoping for too much. Turf
managers should resume monitoring for annual bluegrass weevils once the
snow melts.
- Recent high winds combined with heavy snowfall, ice and sleet will
undoubtedly leave many courses covered with a layer of debris. More
spring cleaning is in order for many.
- Temperatures always fluctuate during spring, but some years are
worse than others. Late-winter and early spring temperature fluctuations
result in a “start and stop” pattern for turf growth as well as pest
and weed development. This makes timing control applications very
difficult. It also produces inconsistent turf growth and makes turf more
susceptible to wear problems. Don't overdo maintenance practices when
turfgrass growth resumes. This is especially important with creeping
bentgrass, because it is very susceptible to wear injury during spring.
The return of winter throughout much of the region is having impacts
well beyond a deep layer of snow in many areas. Hopefully most courses
will come through the cold snap unscathed and spring maintenance will
soon fall into a normal routine. However, golfers may see a few more
seedheads this spring, and perhaps a little more crabgrass and
goosegrass this summer. For now, we will just have to wait out the cold
weather and watch our college basketball tournament brackets.
Northeast Region Agronomists:
David A. Oatis, regional director –
doatis@usga.org
Adam Moeller, director, Green Section Education –
amoeller@usga.org
James E. Skorulski, agronomist –
jskorulski@usga.org