Weather data for Sanford ME. Forecast values begin October 17, 2008

Key Dates for European Red Mites

Estimated hatch date of overwintered European red mite (ERM) eggs indicating declining efficacy of prebloom oil treatment is
Thursday, May 8

Optimum monitoring period for 1st generation ERM:
Monday, May 26 (Petal Fall) to
Tuesday, June 3 (early adults ready to lay eggs for 2nd generation)

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

Optimum monitoring period for 3rd ERM generation is:
Wednesday, July 2 (nymphs hatched) to
Wednesday, July 9 (egglaying starts for 4th generation)