Tufted Apple Budmoth Management Recommendations
Based on Degree-day (DD) Accumulations from Biofix and Percent Egg Hatch at Winchester, 2008.

Tufted apple budmoth biofix on May 3 at Winchester
Date
(2008)		 Accumulated DD from biofix
(base temperature = 45°F)		 Estimated %
egg hatch**
May 6 44 0
May 13 128 0
May 20 213 0
May 27 330 0
June 3 481 1
June 10 718 44
June 17 908 80
June 24 1070 100
July 1 1266 0
** Estimation based on Penn State tufted apple budmoth egg-hatch model

The following timing recommendations are based on complete sprays.

BLUE CELLS
Prepare for control of 1st brood larvae. Optimal timing for complete sprays of organophosphates, carbamates, pyrethroids, Altacor, Avaunt or Bt is at 530 - 585 DD, then again at 805 - 855 DD. Alternate-row-middle sprays should be initiated 50 - 75 DD earlier and be repeated at 7-day intervals. Optimal timing for a complete spray of Delegate, Intrepid or Proclaim is at 585 - 640 DD or as two alternate-row-middle sprays at 7-day intervals beginning at 530 DD. Follow with a complete spray after 14 days or alternate-row-middle sprays at 7-day intervals, depending on pressure.
RED CELLS
Prepare for control of 2nd brood larvae. Optimal timing for complete sprays of organophosphates, carbamates, pyrethroids Altacor or Bt is at 2280 - 2355 DD and again at 2665 - 2740 DD. Alternate-row-middle sprays at 7-day intervals should begin 50-75 DD earlier. Optimal timing for complete sprays of Delegate, Intrepid or Proclaim is at 2355 - 2435 DD and again at 2665 - 2740 DD. Alternate-row-middle sprays of Delegate, Intrepid or Proclaim at 7-day intervals should begin at 2280 DD.

Tree Fruit Pest Management