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Alfalfa leafcutter bee

 

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Alfalfa leafcutter bee



 
 
The Alfalfa Leafcutter Bee (Megachile rotundata) is a European species of bee that has been cultured in North America
North America

North America is the northern continent of the Americas, situated in the Earth's northern hemisphere and almost totally in the western hemisphere....
 for pollination
Pollination

Pollination in flowering plants and gymnosperms is the process that transfers pollen, which contain the male gametes to where the female gamete are contained within the carpel; in gymnosperms the pollen is directly applied to the ovule itself....
 purposes and has also become feral
Feral

A feral organism is one that has escaped from domestication and returned, partly or wholly, to its wildlife state. The introduction of feral animals or plants, like any introduced species, can disrupt ecosystems and may, in some cases, contribute to extinction of indigenous species....
 and widespread. As a solitary but gregarious bee species, it does not build colonies or store honey
Honey

Honey is a sweet fluid produced by honey bees , and derived from the nectar of flowers. According to the United States National Honey Board and various international food regulations, "honey stipulates a pure product that does not allow for the addition of any other substance?this includes, but is not limited to, water or other sweeteners...
, but is a very efficient pollinator
Pollinator

A pollinator is the biotic agent that moves pollen from the male anthers of a flower to the female carpel of a flower to accomplish fertilization or syngamy of the female gamete in the ovule of the flower by the male gamete from the pollen grain....
 of alfalfa
Alfalfa

Alfalfa is a flowering plant in the pea family Fabaceae cultivated as an important forage crop. In the United Kingdom, Australia and New Zealand it is known as lucerne and as lucerne grass in south Asia....
 seed, carrot
Carrot

The carrot is a root vegetable, usually orange or white, or red-white blend in colour, with a crisp texture when fresh. The edible part of a carrot is a taproot....
 seed, and some other vegetables.

Female Alfalfa Leafcutter Bees have stingers, but both male and female Leafcutters will use their mandibles as a defensive mechanism, usually only defending themselves when squeezed or antagonized.






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Encyclopedia


The Alfalfa Leafcutter Bee (Megachile rotundata) is a European species of bee that has been cultured in North America
North America

North America is the northern continent of the Americas, situated in the Earth's northern hemisphere and almost totally in the western hemisphere....
 for pollination
Pollination

Pollination in flowering plants and gymnosperms is the process that transfers pollen, which contain the male gametes to where the female gamete are contained within the carpel; in gymnosperms the pollen is directly applied to the ovule itself....
 purposes and has also become feral
Feral

A feral organism is one that has escaped from domestication and returned, partly or wholly, to its wildlife state. The introduction of feral animals or plants, like any introduced species, can disrupt ecosystems and may, in some cases, contribute to extinction of indigenous species....
 and widespread. As a solitary but gregarious bee species, it does not build colonies or store honey
Honey

Honey is a sweet fluid produced by honey bees , and derived from the nectar of flowers. According to the United States National Honey Board and various international food regulations, "honey stipulates a pure product that does not allow for the addition of any other substance?this includes, but is not limited to, water or other sweeteners...
, but is a very efficient pollinator
Pollinator

A pollinator is the biotic agent that moves pollen from the male anthers of a flower to the female carpel of a flower to accomplish fertilization or syngamy of the female gamete in the ovule of the flower by the male gamete from the pollen grain....
 of alfalfa
Alfalfa

Alfalfa is a flowering plant in the pea family Fabaceae cultivated as an important forage crop. In the United Kingdom, Australia and New Zealand it is known as lucerne and as lucerne grass in south Asia....
 seed, carrot
Carrot

The carrot is a root vegetable, usually orange or white, or red-white blend in colour, with a crisp texture when fresh. The edible part of a carrot is a taproot....
 seed, and some other vegetables.

Female Alfalfa Leafcutter Bees have stingers, but both male and female Leafcutters will use their mandibles as a defensive mechanism, usually only defending themselves when squeezed or antagonized. Therefore bee suits, such as those required with honey bees, are not really necessary when dealing with Leafcutter bees. The ratio of males to females is generally one to one.

Females in the wild create nests in small holes in the ground or in available cracks/crevices in trees or buildings. The nests are composed of a string of individual cells, as many as the space will allow. When managed for pollination, the females are induced to nest in drinking straws or drilled blocks of wood.

Each cell is made from circular disks cut from plant leaves using the bee's mandibles, hence the name "Leafcutter". While the bees do not store honey, females do collect pollen which they store in the cells of their nests. Each cell contains one pollen ball and one egg. The larva develops rapidly, consuming the pollen ball and entering hibernation when the pollen is fully consumed. The next spring, the mature larva pupates and completes its development. Once the bee is developed it cuts its way out from the nest. The incubation period is approximately 30 days and requires a constant temperature of greater than 30°C (86°F).

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