Weather data for Sanford ME. Forecast values begin September 20, 2011

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
Monday, May 9

Optimum monitoring period for 1st generation ERM:
Friday, May 27 (Petal Fall)
to Wednesday, June 1 (early adults ready to lay eggs for 2nd generation)

Optimum monitoring period for 2nd generation ERM:
Wednesday, June 15 (nymphs hatched)
to Wednesday, June 22 (egglaying starts for 3rd generation)

Optimum monitoring period for 3rd ERM generation is:
Sunday, July 3 (nymphs hatched)
to Sunday, July 10 (egglaying starts for 4th generation)