Leaf cutter bees are seen as pests by some gardeners, as they can make a mess of the foliage on a favorite rosebush or shrub by making their half moon shaped precision cuts out of the leaves. See the photo of the example of the cut outs they leave on the leaves of their plants of choice.
They do not eat the foliage as pests such as caterpillars and grasshoppers will. The leaf cutter bees use the foliage they cut out to make nest cells for their young.
The cut piece of leaf is formed into what might be called a nursery chamber where the female cutter bee lays an egg. The female cutter bee adds some nectar and pollen to each little nursery chamber. Each nest cell looks a bit like the end of a cigar. Leaf cutter bees are not social, like the honeybees or wasps (yellow jackets), thus the female cutter bees do all of the work when it comes to rearing the young.
They are not an aggressive bee and do not sting unless handled, even then their sting is mild and far less painful than a honeybee or wasp sting.
DON’T WORRY! YOUR PLANTS DON’T HAVE A DISEASE!
LISTEN TO THE GARDEN GURU BELOW FOR MORE INFORMATION!