enough of a barrier even when closed. Cluster
flies are capable of crawling through small
openings in screens, doors and walls to find a
secluded place to hide out for the winter.
On sunny winter days, the wall voids where
cluster flies are hiding inside a facility can
become warm, causing them to think it is
spring. If this happens, they may come out of
hiding prematurely and move toward the light
coming in through windows. They will cluster
around the inside of the windows trying to get
back outside and can leave stains on walls if
Keep your facility on guard
While all of these pests are different, they do
share some similarities when it comes to managing them. It’s important to plan ahead and
implement exclusion efforts before temperatures drop and drive these pests indoors.
To help keep these pests out, inspect the
outside of your facility regularly and carefully.
Seal any cracks around windows and doors
with metal mesh and caulk. Check the weather
stripping on all exterior doors and repair any
damaged window screens.
Fall is also a good time to revisit your sanitation program, which can help reduce breeding
conditions and keep flies and other pests away.
Clean up spilled ingredients or finished products
quickly. Request that employees clean food and
;;;; ; ;
When pest activity
appears to slow this
time of year, it can be
easy to grow a little
more lax with a pest
liquid spills immediately in and around interior
and exterior break areas. Also, now is the time
to request replacement dumpsters or to clean
these units to remove fly-attracting residues.
These tactics are part of a broader
Integrated Pest Management (IPM) program. If
your facility doesn’t have an IPM plan in place,
about setting one up to protect your entire
facility from pests all year long.
Ron Harrison, Entomologist, Ph.D., is
Director of Technical Services for Orkin and an
acknowledged leader in the field of pest management. Contact Dr. Harrison at rharriso@
orkin.com or visit www.orkincommercial.com
for more information. ◆