Which in turn had me treating for mites in mid to late August instead of in mid to late June. There is not much horizontal transfer of viruses between honey bees, so it’s not likely they are passing disease between hives unless the mites are doing it for them.Still…all good questions. This all took place in September. However, I’ve noticed quite a few crawling around on the ground today. Not great numbers of crawlers but it was still worrisome, so a relief to hear others’ observations and analysis. Many things can weaken a bee and render it unable to fly. Its purpose it to discuss contemporary issues in beekeeping and bee science. Is there danger of bee-to-bee virus transmission or are the viruses dependent on mites to vector transmission?Once infected, the bees will die off slowly, so you will continue to see them for several weeks as they emerge from the brood cells. Upon viewing it I found a confirmed infection in White Haven, that is only 15 miles from me. I have had several huge hives over the years get virus and lose tons of bees, but after treating and feeding, they spring right back up and make it till spring. Where do they go to die? When I note an increase in the number of crawlers, it typically means I’m going to see an increase in the number of mites on my next sugar roll test. After no signs of varroa over the summer on my oiled tray under the hives, the other day I was horrified to see 2 bees, one in front of each hive, with deformed wings. Should I wait to see if the numbers of crawlers increase, or would that be too late?

I think they’ve probably been around all along, but we never noticed them. I treat mites with Apivar strips. It seems at this point the winter bees need be hatching, and if there are issues one might cut the losses early and extract all the honey and freeze the combs for spring expansion.If you get rid of the varroa, the virus will clear out. Go figure. The only bee that defecates inside the hive is the queen, and there are designated bees that clean up after her when duty calls. Bees evolved from wasps, which can see in UV (as can many insects, so the ability to see in UV likely happened much earlier in insect history). They are producing a pheromone to lead other bees to the current location or to lead the queen back. I have them every year, but this year was crazy. In general, honey bees are so conscientious, in fact, that they'll do whatever it takes to die outside of the hive if at all possible so their corpses won't contaminate food or pose a threat to nursing young. They where 30’+ from the hive and a lot of them had there tongues out. Good to know that horizontal transfer between bees is not a big factor. Is there any way to keep this fly from infecting my bees? Any thoughts about calling it good after three treatments or keeping at it?It’s not great for your bees and can cause brood mortality.

For one thing, tracheal mites have largely disappeared in many areas because of the widespread use of acaricides to treat varroa mites.Over the past six or seven years I’ve heard from dozens of beekeepers who’ve had their crawlers tested for tracheal mites, and all but one came up negative.

I’ve been carrying my camera around for the last ten years trying to get one of those photos, and I never see phoretic mites, even in colonies with high mite counts. Do they go back to their colony, or do they just never go back home?Yes, it is perfectly normal to see a certain number of crawlers. A lot depends on their age when they contracted the virus. However, a bee that is infected after the wings are fully formed will not show that symptom. I did observe 2 of my bees crawling around in front of the hive a few days ago, all looking normal, all legs, no deformed wings, crawling up blades of grass, fall down, and repeat over again. Thank you! Why Are My Honey Bees Stinging Me?

Just another possibility.I’m curious, did you grow out the larvae from your bees and have them identified?Unfortunately I have this problem with two of my Italian hives. I’d treated in August on the instruction of my mentor (I’m a first year beekeeper) and he said I must have made a mistake with the treatment. Some of the people here treat their hives for three weeks in a row during the brood break period, that way, the oxalic gets each subsequent brood emergence.Also, September is not too late to save the hive and make winter bees. I seam to be a magnet for strange anomalies.As a 3rd season beekeeper, I thank you for all the information you have provided. Glad PL Borst is a collaborator, he’s a rockstar on Bee-L. As you are here!I have crawlers this time time of year, near all hives.

Even a phoretic mite hitching a ride on an adult bee can easily slip into the space under an abdominal plate where it is nearly impossible to see.We’ve all seen photos of clearly visible varroa mites clinging to adult bees. I always thought they were just older, weak bees ready to die. Viruses are, however, the least understood of honey bee diseases. Diseases, poor nutrition, environmental stress, and genetics are all potential sources of weakness. Plus, having mentioned the above paranoia, when I do my monthly breakdown to inspect my 2 deeps and 1 med, I take several dozen pics of frames from all boxes, making sure to also get uncapped drone larvae.

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