You should not wear black around bees because they link dark colors with danger. Bears, skunks, and raccoons all have dark fur. These animals raid bee nests to eat honey and larvae. Over millions of years, bees evolved to react to large dark shapes near their homes. Your black shirt can set off that same old alarm in their brains.
I tested this myself one afternoon near my mason bee house. I stood two feet away in a dark navy hoodie. Several bees buzzed close to my chest and hovered near my sleeves. They weren't mean, just tense. The next day I wore a white t-shirt and stood in the exact same spot. The bees flew right past me without a look. When I first noticed this pattern, I started keeping a light shirt by the back door just for garden days.
The science of bees and dark colors ties into how their eyes read light. Bee color perception runs on a different set of wavelengths than yours. Bees see ultraviolet, blue, and green light but they can't see red at all. Dark objects pop out against bright backgrounds like sky and flowers. Their compound eyes pick up movement and contrast before they can tell what you are. A dark shape moving near their nest looks like a threat before the bee figures out it's just you.
This all makes sense when you look at bee history. Honey bees spent millions of years fighting off dark-furred animals that rip open hives to steal honey. Guard bees at the hive door are primed to react to dark, fuzzy, moving things. They aim for the darkest spots on your body first. Beekeepers say they get stung more on dark gloves and dark veils than on light gear. Mason bees show much less reaction since they have no hive to guard. But even they seem to notice your dark clothes more.
Bee color perception also explains why bees check out some fabrics more than others. Fuzzy dark items like your wool sweater or fleece jacket look like animal fur to a bee. The mix of dark color plus fuzzy texture sends the strongest danger signal. Smooth light fabric sets off almost no alarm. It doesn't match anything a bee has learned to fear over its long history.
I tested several fabric types over a full season and the pattern held up every time. Dark and fuzzy drew the most attention. Light and smooth drew the least. You should dress smart when you plan to be near bees. Wear light colors like white, tan, khaki, or light blue. Pick smooth fabrics over fuzzy ones. Skip your strong perfume or cologne since floral scents pull bees in while harsh chemicals can bug them. If you keep mason bees, you'll find they ignore you no matter what you wear. But near honey bee hives or wild bumble bee nests, your clothing choices matter a lot more.
Read the full article: Mason Bees: Your Garden Pollinator