Suggestion, You may want to read the following article which was the
first to describe "PMS". Shimanuki, Calderone, and Knox 1994. American
Bee Journal, Dec. pp 827-828
John A. Skinner 218 Ellington Hall
Extension Apiculturist University of Tennessee
[log in to unmask] Knoxville, TN 37901 (423)974-7138