I've been in many campgrounds with an ant problem I see where people have poured a white powder around their tires and ground contact points. I'm curious what poison they are using. It appears it could be borax. I've always used liquid spray and commercial poisons with good results but wondered what others are using. These are tiny Argentine ants, sometimes called sugar ants.
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Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
The way I've seen it used is to make a circle on the ground around the tires, stabilizers, etc. Sort of a "do not cross" line for the ants. I've not heard of it being used on the interior so I can't answer that.
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Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
DE has no real repellent properties. DE is the silicon skeletons of tiny sea creatures (Diatoms). It works by injuring insects that move through it with the sharp edges of the skeleton. As mentioned it needs to be used as a do not cross line.
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2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
The information packet handed out at several campgrounds we have visited recommend Comet or Ajax around the contact points. I don't know nor do I care if it's environmentally safe, I'm just stating what info was given to us.
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You can avoid reality, but you cannot avoid the consequences of avoiding reality – Ayn Rand