 |
 |
|
 |
 |
|
|
|
|
|
|
Encyclopedia :
P :
PO :
POL :
Pollen source |
|
|
Pollen sourceNorthern pollen sources for honeybeesThe pollen source in a given area depends on the type of vegetation present and the length of their bloom period. What type of vegetation will grow in an area depends on soil texture, soil pH, soil drainage, daily maximum and minimum temperatures, precipitation, extreme minimum winter temperature, and growing degree days. The plants listed below are plants that would grow in USDA Hardiness zone 5. A good predictor for when a plant will bloom and produce pollen is a calculation of the growing degree days.
The color of pollen below indicates the color as it appears when the pollen arrives at the beehive. Bees mix dry pollen with nectar and/or honey to compact the pollen in the pollen basket. Dry pollen, is a food source for bees, which contains 16 - 30% protein, 1 - 10% fat, 1 - 7% starch, many vitamins, but little sugar. The protein source needed for rearing one worker bee from Source: THE R-VALUES OF HONEY: POLLEN COEFFICIENT accessed Feb 2005 Spring---- Trees and shrubswith red pollen in pollen basket
Flowers and annual crop plants
SummerTrees and shrubs:Linden (Tilia spp.), Jun - Jul ::Basswood or American Linden (Tilia americana), Jun - Jul (yellow to light orange) :Sumac, (Rhus glabra), Jun - Jul :Catalpa (Catalpa speciosa), Jun - Jul :Elder (Sambucus canadensis), Jun - Jul Flowers and annual crop plants:Alfalfa (Medicago sativa), July - Aug (greyish yellow) :Alyssum (Lobularia maritima), Jun - Sep :Aster, (Aster spp.), Sep-Frost (reddish yellow) ::Land-in-blue, (Aster x dumosus), Aug - Sep :Basil (Ocimum basilicum) :Blue Thistle (Carduus spp.) :Blue vine (Gonolobus laevis syn. Cynanchum laeve) :Borage (Borago officinalis), Jun - Frost :Buckwheat (Fagopyrum esculentum), Jul - Aug (light yellow to light green) good source :Cat-tail, (Typha latifolia), Jun - Jul :Chickweed (Stellaria media), Apr - Jul; minor source :Allium (Allium spp.) ::Chives (Allium schoenoprasum), May - Sep ::Onion (Allium cepa) (light olive) ::Garlic chives (Allium tuberosa), Aug - Sep :Clover (Melilotus spp. and Trifolium spp.), May - Aug ::White Sweet Clover (Melilotus alba) ::Yellow Sweet Clover (Melilotus officinalis) :Alsike Clover (Trifolium hybridum) (yellow brown) good source ::Crimson Clover (Trifolium incarnatum) (dark brown) ::White Clover (Trifolium repens), Jun - Jul (yellow brown); good source :Cucumber (Cucumis spp.) (bright yellow) ::Melons (Cucumis melo), Jun-Frost (bright yellow) ::Pumpkin (Cucurbita pepto), Jun-Frost (bright yellow) :Common vetch (Vicia cracca), Jul - Aug ::Spring Vetch (Vicia sativa), Jul - Aug :Fireweed (Epilobium angustifolium), Jul -Aug, (blue) :Germander (Teucrium chamaedrys), Jul - Aug :Joe-Pye weed (Eupatorium spp.), Aug - Sep :Leadwort syn. Indigobush (Amorpha fruticosa), Jun - Jul :Mallow (Malva alcea) Jun - Sep :Marigold (Calendula officinalis), Jun - Sep :Smartweed (Polygonum spp.), Aug - Sep :Poppy (Papaver somniverum) May - Jun (grey); very good source :Sunflower (Helianthus annuus), Jun - Sep (golden) :Sweet Corn (Zea mays), Jun - Jul (yellowish white) :Star thistle (Centaurea spp.), Jul - Sep ::Knapweed (Centaurea nigra), (very light olive)
FallTrees and shrubsFlowers and annual crop plants
Source: Bienenweide Arbeitsblatt 207, Bieneninstitut Kirchhain, 2001 See also
Sources:
|
|
|
This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License. |
|
| © 2008 Chamas Enterprises Inc. |
