Seasonal allergies are primarily triggered by pollen, and this allergy season has been tough on many of us. A major source of pollen is from trees. Michelle Davis, a Solano County Master Gardener, wrote an article on how to evaluate tree species for their ability to produce pollen that may create an allergy problem for you. The article was published in Under the Solano Sun, a weekly blog by the U.C. Cooperative Extension office in Solano County. Click here to read more. The photo above is “Cedar Fever” by aheatwole is licensed under CC BY-NC-ND 2.0.