Background Information for this page
Return to Apple list for Westhampton MA
Weather data for Westhampton MA.  Forecast values begin September 18, 2018
Key Dates for European Red Mites

Estimated hatch date of overwintered European red mite (ERM) eggs
and decline in efficacy of suppression by prebloom oil is
Friday, May 4
Optimum monitoring period for 1st generation ERM: 
  Thursday, May 17 (Petal Fall)
to  Wednesday, May 23 (early adults ready to lay eggs for 2nd generation)
Optimum monitoring period for 2nd generation ERM: 
  Tuesday, June 5 (nymphs hatched)
to  Tuesday, June 12 (egglaying starts for 3rd generation)
Optimum monitoring period for 3rd ERM generation is: 
  Thursday, June 21 (nymphs hatched)
to  Saturday, June 30 (egglaying starts for 4th generation)