I am a newbee, and I have a hive of Carniolans. I don’t have a flow hive, just regular 8-frame Langstroths. One deep and one medium super of brood. I’ve had a problem with robber bees for about two weeks now, an after temporarily solving the problem by throwing a wet sheet over the hive, they came back. My bees bravely fought them (and still are), but I don’t want this to cause stress on the hive, which can lead to several other problems.
I installed a robber screen about 4-5 days ago, and my bees found a way out of the hive to go forage, but by the end of the day, they have difficulty finding their way back home. We’ve had some 80 and 90 degree days, and I also saw several bees fanning at the entrance. I have a screened bottom board, but I have a sticky IPM board for varroa. Could that be blocking the airflow in the hive somewhat?
I took off the robber screen this morning, and bees immediately rushed in the hive, many with full pollen baskets, and others I believe were robbers. I’m not sure what to do now to keep the robbers away. Should I just keep experimenting here and there with the robber screen, putting it on some days, and removing it other days?
I took a few minutes this morning to just stare at the activity happening at the entrance. I saw something I had never read about. One bee coming in with pollen pants was…green! All normal colors, for the head and thorax, but the abdomen was lime green! Is that something to be concerned about? (maybe a diseased bee of some sort? Maybe a mutation of a Carniolan?)