Wishful Thinking

By Bob Vavrek, senior agronomist, North Central Region
February 16, 2012

Extensive turf damage caused by skunks and raccoons foraging for grubs can appear overnight.  This type of turf injury can take a golf course by complete surprise, especially in sites where populations of Japanese beetles have just recently become well established during their slow westward migration across the states.   

The Green Section office in Wisconsin always receives a few additional inquiries about Japanese beetle grub survival every time a mild winter occurs.  Everyone wants to hear that a lack of snow cover and above average temperatures will disrupt the life cycle of this pest and ultimately reduce or eliminate populations overwintering grubs. 

A little help from Mother Nature regarding grub control would be a welcome bonus considering the high cost of pesticide treatments for fairways and roughs, where most turf loss occurs, versus the more modest expense of treating only a few acres of putting surface where relatively little grub injury is typically observed. 

To make matters worse, courses affected by the most severe infestations of grubs are often in sites where Japanese beetle populations have just become well established as they slowly migrate westward across the Region.  There tends to be minimal natural control of grubs or adult beetles from disease, parasites, etc. for as long as five to eight years when they invade new turf.  During this time, beetle populations can go hog wild and make life miserable for superintendents who are not yet familiar with the direct and indirect effects of grubs making a permanent home in high quality turf.

Japanese beetle control is old hat for superintendents across the eastern part of the country - scout for grubs, identify the pest species, budget for control measures and treat affected turf at the appropriate time only when necessary, as dictated by factors such as pest population levels, weather conditions and turf health.   In contrast, the migration and establishment of beetles into new territory is an unsettling event for a golf course.   There is the obvious injury to susceptible trees and ornamental plantings caused by adult beetles and the not so obvious, but equally serious, injury to turf caused by grubs.  The additional turf disruption caused by skunks and raccoons foraging for grubs at night adds insult to injury.  Furthermore, this trifecta of turf trouble was unexpected, so the chances of you having funds already in the budget earmarked for grub control are about as good as the chances you have of getting that angry skunk out of the live trap without stinky repercussions.

Well, the good news is that winter has been unusually mild. The bad news is that the grubs are probably just fine as they have their own form of antifreeze to compensate for the lack of snow cover.  Even better news is that there are plenty of options available for effective grub control and several of the reduced risk products developed recently are much more eco-friendly than the materials available for insect control 20 or 30 years ago. 

Spend some of the time that you are not spending behind a snow plow to learn more about the new classes of insecticides and how they might fit into a responsible, sustainable turf maintenance program if new bugs are bugging you.  Feel free to call the office anytime with questions regarding the best time to treat for specific insect problems and ways to stretch the budget by using new products to control multiple turf pest species.

Source:  Bob Vavrek, rvavrek@usga.org or 262-797-8743 

 

Partner Links
AmEx image
AmEx image
AmEx image
AmEx image
Chevron
   

The USGA and Chevron have committed to using the game of golf to encourage students in science, technology, engineering and math (STEM) disciplines. This commitment has led to the creation of extensive golf-focused STEM teaching tools, and has resulted in charitable contributions to support golf-related programs through Eagles for Education™

At U.S. Open Championships the Chevron STEM ZONE™ is an interactive experience highlighting the science and math behind the game of golf through a variety of hands-on exhibits and experiments.

The partnership has also produced educational materials such as the Science of Golf video series and a nationally-distributed newspaper insert which are provided to teachers as tools to enhance existing curriculum in schools. These lessons teach the science behind the USGA’s equipment testing, handicapping, and agronomy efforts.

For more interactive experiences featuring golf-focused STEM lessons, visit the partnership homepage.


Chevron image
Rolex
   

Rolex has been a longtime supporter of the USGA and salutes the sportsmanship and great traditions unique to the game. This support includes the Rules of Golf where Rolex has partnered with the USGA to ensure golfers understand and appreciate the game.

As the official timekeeper of the USGA and its championships, they also provide clocks throughout host sites for spectator convenience.

For more information on Rolex and their celebration of the game, visit the Rolex and Golf homepage.



Rolex image
IBM
   

IBM has partnered with the USGA to bring the same technology, expertise, and innovation it provides to businesses all over the world to the USGA and golf's national championship.

IBM provides the information technology to develop and host the U.S. Open’s official website, www.usopen.com, as well as the mobile apps and scoring systems for the three U.S. Open championships. These real-time technology solutions provide an enhanced experience for fans following the championship onsite and online.

For more information on IBM and the technology that powers the U.S. Open and businesses worldwide, visit http://www.usopen.com/IBM

AmEx image
Lexus
   

Lexus is committed to partnering with the USGA to deliver a best-in-class experience for the world’s best golfers by providing a fleet of courtesy luxury vehicles for all USGA Championships.

At each U.S. Open, Women’s Open and Senior Open, Lexus provides spectators with access to unique experiences ranging from the opportunity to have a picture taken with both the U.S. Open and U.S. Women’s Open trophies to autograph signings with legendary Lexus Golf Ambassadors in the Lexus Performance Drive Pavilion.

For more information on Lexus, visit http://www.lexus.com/

AmEx image
American Express
   

Together, American Express and the USGA have been providing world-class service to golf fans since 2006. By creating interactive U.S. Open experiences both onsite and online, American Express enhances the USGA’s effort to make the game more accessible and enjoyable for fans.

For more information on American Express visit www.americanexpress.com/entertainment


AmEx image