Right now I am not sure how many I have. I am opening the hive up this Saturday to take look. If/when I do find them I want them all gone. There is a slight sour smell to the hives. I smell it from the screen bottom board. I have heard it may be related to SHB? I also heard it could be because of a nectar flow? I just got the bees 3 weeks ago, they were 5 frame nucs. I was wondering if these traps stay in the hive all year round as a preliminary strike?
Sounds like it may be time to change the oil--assuming you have oil traps under your sbb's. Funky stuff and dead critters in your pans will start to smell sour eventually. You can strain out the dead stuff to get a little more life out of the oil, but I don't think the hassle is worth the savings. I wouldn't even bother with the beetle blasters. They are a pain to use as they spill and get in the way. I have some I'll never use again--wanna buy them?