No matter where I live I always seem to get these bugs in my harlan. Cannot figure out why either. I buy a 33lb bag and this last time I never rebagged it, because I'm going through it so much & I'm trying to just use blocks instead of dog food. Even if I put them in ziplock bags I still get these darn bugs. Can anyone relate to this or am I the only one. They are the ones that will borrow in the block.