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HI, When I take house plants out on the patio
during the summer I use diatomatous earth as
a dirt topping--any ant or insect that walks on it or tries to dig through
it will get tiny little cuts in its exoskeleton that cause
it to "bleed" to death. You can find it at Loews, probably
Home Depot also. The one that I have also has bait, so you might
want to circle around the outside of the plant pot to prevent
them from even getting to the plant.
I started this when I would have
Thrips colonize my potted plants on the patio - no thrips anymore;
never did have ants.
Good Luck.
Dianne Stephany, zone 5 where we are in a 4
day heat wave of 92 degrees and 80% humidity. It is supposed to rain
Tuesday and we expect the temps to go back to a seasonal 74..
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