Because insects can see purple, blue etc. better than red, orange etc. That's why tropical red flowers are almost always pollinated by birds, and red berries are eaten by birds; birds can see red better, insects can see blue better. Insects are also quite good with ultraviolet light, which is why many flowers have markings that are invisible to us, but visible to them - they can see colours beyond our vision.
they are like most bees and like many different types of flowers, except they love blue flowers hence the name blue banded bee.
Most bees only go for brightly coloured flowers etc: roses
To attract bees to your garden use flowers or plants that are blue, purple or yellow, bees find these colors most attractive. Chose a variety of plants that will bloom all year long, this will attract bees all through the year.
fresh brightly coloured adult flowers attract most bees
yellow dandelions
bees
Bees prefer fragrant, red coloured flowers like roses. Yellow, scentless or purtrid smelling flowers are frequented by flies. I have however seen hungry bees on Dandilions and dasies. Hunger seems to be a great motivator.
It doesn't matter that much. White is the traditional color, but some beekeepers paint them in different colors. This helps the bees return to the correct hive if several hives are close together. It is better to keep to light colors because in hot weather a hive painted a dark color will easily become too hot for the bees.
One of the most important reasons for flowers is to attract bees and insects for pollination.So the flowers are bright Nd attractive by nature.
The most important job of bees is to pollinate the flowers they visit. This is essential for the development of the crops.
The flowers of the cacao tree are not fertilized by bees like most flowers. These flowers are pollinated by gnats. It is this insect that carries the pollen from flower to flower which allows the cocoa pods to grow.
They are most likely pollinated by wind or pollinators, such as bees.