This blog is meant to report on small experimental trials, testing various facets of trapping bees and pollinators attracted to color based traps....bowl, pan, vane, moericke, etc. It is also a place where observations and thoughts regarding their effectiveness or ineffectiveness can be posted. Comments are encouraged.

Monday, April 5, 2010

31 March 2010 - Styrofoam cup vs plastic cup...soapy water vs glycol

Location: Hardesty, MD
Start: Morning, 27 March
End: 5:00 p.m.31 March
Habitat: Patuxent River, bottomland, young deciduous woods, many spring beauties in bloom
Bees: Andrena primarily
Experiment: 9 sets of 4 bowls.  At each set was 2 3.25 ounce white solo brand bowls and 2 Styrofoam 16 ounce cups laid in small square a bit more than one foot apart.  Each type of bowls was filled either with a detergent mix or a glycol mix (Walmart RV antifreezed, dyed red).  The capture was not removed the entire time.


Site Numbers are in the first row.  "n" refers to a bowl that was spilled or had no liquid.

2 3 4 5 6 7 8 9 Average
Solo/Detergent 1 n 0 4 n 2 4 0 2 1.86
Solo/Glycol 3 0 n n 2 4 4 0 1 2.00
Styrofoam/Detergent 0 1 0 0 0 1 0 0 0 0.22
Styrofoam/Glycol 0 0 0 n 0 0 0 0 0 0.00

Interpretation:  It is clear that there is a strong difference between the Plastic cups and the Styrofoam cups but not between glycol and soap.


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With Natural History there is no need to go to the moon or Madagascar; there is more to find in your woodlot than in our entire solar system.