Search results
Results from the WOW.Com Content Network
Botanical sexism is a term that describes the preferential planting of cloned male plants in urban areas because they do not produce fruits and flowers that litter the landscape. However, because males produce pollen, areas with only male plants can have high pollen in the air and, therefore, be inhospitable to people with pollen allergies.
Urban planners and tree experts have tried for decades to keep streets and sidewalks clear of maple spinners, seed pods and fallen fruit, but these efforts may be leading to an increase in allergies.
The Commonwealth of Pennsylvania in the United States includes 58 natural areas in its State Forest system. [1] They are managed by the Pennsylvania Bureau of Forestry , a division of the Pennsylvania Department of Conservation and Natural Resources .
The 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 report looks at tree, grass and weed pollen scores, availability of board-certified allergists or immunologists and use of over-the-counter allergy medicine to determine the scores for each city.
The OPALS allergy scale was first published in Allergy-Free Gardening, by Thomas Leo Ogren, in 2000. [1] It covers over 3,000 common trees, shrubs, flowers, and grasses. [3] The allergy scale was updated and extended in 2015 in The Allergy-Fighting Garden. [4] [5] [6]
Botanical Name:Nyssa sylvatica Sun Exposure: Full sun to part shade Soil Type: Moist, well-draining, average Soil pH: Acidic (5.5-6.5) USDA Hardiness Zone: 3 to 9 Black gum, or tupelo, is an ...
They are managed by the Pennsylvania Bureau of Forestry, a division of the Pennsylvania Department of Conservation and Natural Resources. A reorganization effective July 1, 2005 shifted territory among several state forests in eastern Pennsylvania, resulting in the elimination of Wyoming State Forest and the creation of Loyalsock State Forest.