Do bees pollinate garden vegetables, like broccoli and the like?

I am wondering because I have a homemade greenhouse this year where there are no bees.Do bees pollinate garden vegetables, like broccoli and the like?
Yes, you need the insects to do their job of pollinating your plants. Some are self-pollinating, helped by the wind, but you need them in order to set fruit well on some. Broccoli doesnt need pollinating as you are actually eating the unopened flowers! If you are opening vents or doors on the sides of the greenhouse for ventiliation they will find their way in. When I worked in a hydroponic greehouse, we would buy hives(their home was in a cardboard box) of bumble bees that would pollinate the tomatoes....they were friendly and fun to watch!Do bees pollinate garden vegetables, like broccoli and the like?
Bees, birds, flies, wasps all do. Open the doors or vents
Bees are essential for pollinating many flowers (vegetables) particularly climbing beans (ie, you won`t have any beans if there are no bees). There has recently been a worrying decline in bees, which are essential to successful crops in many cases.


As far as I know, plants like broccoli do not require bees: you eat broccolli before it flowers.
Any type of insect that happens to fly from flower to flower can pollinate plants...even you could do it if you happen to brush up against the plants.





If you have outdoor space, instead of leaving the door open, I would harden off the veggies and put them outside and let nature take its course.
Plants are either insect pollinated or wind pollinated. If the flowers are large and showy like beans and peas they are usually insect pollinated. If they are small flowers and have long feathery stigmas such as corn (maize) they are wind pollinated.





In some areas of the world birds and bats pollinate too.





Bees are not the only insects which pollinate. Fortunately, many flies, butterflies and moths pollinate. If you're concerned you may have to pollinate your plants with an artists paintbrush. Natural bristles would work better.
bees will pollinate enything with a flower. but f you want a good harvest you defiently need instects which will transfer pollen.
yes.
Yes bees pollinate flowers and vegetables.
Yes, if you let your broccholi blossom, instead of eating the florettes for dinner, bees will pollinate the plants. I recently pulled out the broccholi plants that I let go to seed and threw them in the compost. There were hundreds of bees, at any given moment, on the myriad blossoms for weeks. I live in Scottsdale, AZ, so the broccholi I put in in September over-wintered (with some frost protection), and we ate it in January and February. Mmmm!