1 - Rodent Misidentification
For example, if you put up an owl box thinking it will eliminate ground squirrel or prairie dog problems, you will be disappointed. Ground Squirrels & Prairie Dogs are diurnal - most active during the day.Gophers are nocturnal - most active at night.Owl boxes are a good solution for gophers and mice because they attract owls and owls hunt at night when the gophers and mice are out.
2. Didn't Follow Instructions
It's the middle of a hot summer day and you correctly identified the rodent pests as ground squirrels. You activated a gas cartridge and tossed it in one of their holes, covered it with dirt, and walked away assuming the problem is solved.
Checked back a few hours later...
Gas cartridges are not the best solution on a hot summer day. The gas can dissipate through the…