Greetings,

As of today, July 13, the NEWA weather system shows that 2138 DD (degree days) have accumulated for oriental fruit moth (OFM) at Winchester. We are now in the third generation of OFM and optimal timings in peaches for this brood are as follows:  Assail or Intrepid at 2000-2100 DD, then at 2350-2400 DD; all other insecticides at 2100-2200 DD, then at 2450-2500 DD. In apples, optimal timing for third brood OFM is as follows: Rimon at 2300-2350 DD; Assail, Belay or Intrepid at 2350-2400 DD, then at 2800-2900 DD; all other insecticides at 2450-2500 DD, then at 2900-3000 DD. OFM management is warranted if weekly captures in pheromone traps have exceeded an average of 10 moths/trap. The daily forecast for OFM DD from July 14 – 18 is as follows: 2170, 2203, 2239, 2276, and 2312.

For codling moth, management of the second half of second generation is approaching if weekly captures in pheromone traps have exceeded an average of 5 moths/trap. As of today, July 13, 1513 DD have accumulated for CM at Winchester. Optimal timings for CM at this point in the season are as follows: Rimon at 1650 DD; Assail, Belay, CM virus, Esteem, or Intrepid at 1650-1700 DD; all other insecticides at 1750-1800 DD. The daily forecast for CM DD from July 14 – 18 is as follows: 1540, 1568, 1599, 1631, and 1662.

Until next time, best wishes.

Greetings,

The time for managing second brood codling moth (CM) larvae is rapidly approaching. As of today (July 2), 1216 DD have accumulated for CM at Winchester and the NEWA system forecasts the following for it: 1246 DD on July 3, 1276 DD on July 4, 1304 DD on July 5, 1334 DD on July 6, and 1360 DD on July 7. Optimal timing for the first spray against this brood of CM is as follows: Rimon at 1250-1320 DD, Assail, Belay, CM virus, or Esteem at 1350 DD, and all others at 1450 DD.

Third brood oriental fruit moth (OFM) would be targeted in peach starting at 2000-2100 DD if using Assail, while all other products recommended for this pest would be best applied at 2100-2200 DD. The NEWA system  forecasts 1955 DD for OFM on July 7. In apple, optimal timing for third brood OFM begins at 2350 DD.

Until next time, best wishes.