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Registered
Join Date: Sep 2013
Location: Ontario, Canada
Posts: 1,879
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I believe they are dormant at night, so spraying during the day will only get the bees that are in the hive at the time. So if you hit them again at night with some spray of some sort then back fit the hole with some sand or dirt that may take care of them. I have the same things happening to me beside my driveway retaining wall but haven't had the need to get rid of them at this point.
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Cheers, Chris
1986 951
SOLD:  1975 Carrera / 965 tribute w/ 1989 3.3 turbo 8.5:1, custom Evergreen K27 7200, 964 cams, euro CIS, TEC1 dual plug, rarlyL8 headers & hooligan pipe.
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