Southeastern Pennsylvania was (and still is today) the largest center of mushroom production in the country. In 1924, the Pennsylvania Department of Agriculture boasted that 85% of U.S. mushrooms were grown in Pennsylvania.
In 1930, the U.S. Census Bureau revealed that there were 516 growers in the U.S. and that 350 were in Chester County, Pennsylvania.
After 1930, the industry changed rapidly with better spawn production, the development of synthetic manure, and improvements of mushroom growing houses- hence the production of healthier crops. Organizations such as the Mushroom Growers’ Cooperative Association were developed to assist and protect growers. In attempt to find better marketing techniques for mushrooms, the Farm Credit Administration became involved.
Pennsylvania State University also became a major factor in the growth of the U.S. mushroom industry helping improve productivity dramatically in the 70’s and 80’s allowing growers to produce more and more mushrooms per square foot of growing area.
To read the full article on at mushroominfo.com, click here.