KNAU and Arizona News
Tue June 21, 2011
Ponderosa Pollen Is Messy Business
By Gillian Ferris Kohl
Flagstaff, AZ – For the last few weeks, many parts of northern Arizona have been gripped by what amounts to a pollen blizzard. The culprits are the Ponderosa pine trees. And, as Arizona Public Radio's Gillian Ferris Kohl reports, their annual pollination cycle is creating one dusty, yellow mess.