When does tree pollen season end

"What is all this yellow dust all over my car?" This question pops up at the lower altitudes of Rocky Mountain National Park in May and June.

Tree pollen allergy treatment

When does the yellow pollen stop

Is yellow pollen season over

Yellow pollen season 2024

When does pollen season end (2024)

Pines, the most dominant group of trees in the park, begin to produce pollen in their annual reproductive cycle. Pines are especially interesting because they produce separate male and female cones. The pollen produced by male cones is carried to female cones by the wind.

This is a very old strategy as pines are first found in the fossil record in the Carboniferous period, about 300 million years ago.

Like many wind pollinated species, pines produce large quantities of pollen, thus the likelihood that it will be seen on cars, decks, windows, or even as a yellow haze in the air in the spring.

When does pollen season start

Many people believe that they have allergies to pine pollen. In most parts of the Northern Hemisphere where it has been studied, however, only about two-three% of the population show reactivity to it. The chemical composition of the pollen coat makes it less likely to cause allergies than other types of pollen.

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