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Survey Results at a Glance

They survey results for 2006 are now complete and and have been added to the overall at-a-glance chart below:

Our 2006 cranefly survey was expanded to include Lake Samish, Lake Whatcom watersheds and surrounding areas. The results have been tabulated and show NO crane fly problems in need of control measures.

In our survey this year, we also searched for another potential pest that has not yet been found in Washington State, the European Chafer. The larval stage of this beetle is also a pest of turf grass, eating roots just like crane fly larvae. Our volunteers surveyed over 60 homeowners' lawns, and NO traces of these white grubs were found either.

A warm thank you goes out to the Master Gardners and associated volunteers that worked on the survey this year, as well as the homeowners that enrolled to have their lawns surveyed.

Critical Levels for Action

Average number of crane flies per foot2 Your Decision
0 to 25 Do nothing; fertilize appropriately. May need to treat if turf is young, not well established or with poor root structure.
25 to 50 If your lawn is vigorous and healthy, do nothing. Decisions are based on the health of the turf, your personal tolerance, location and use of the turf
50 to 80 Treat crane fly problem. Look towards long-term solutions, such as replacing problem areas with a turf alternative species.

 

 
 
See also:

Survey Results

Critical Levels
 
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