Spring frosts can be devastating to apple orchards, especially when they occur during bloom or early fruit development. In such scenarios, where no fruit is present after frost, managing diseases like apple scab and powdery mildew becomes crucial so as to prevent infection pressure buildup …

Major apple scab, Juniper-apple rust, and fire blight infections (where flowers are open) are predicted for 25 – 27 April rains ahead. See attached screenshots. This applies to all of Virginia. Apply fungicides and streptomycin tomorrow, before the rains start.Early apple cultivars are at Petal …

As we warned you timely in my blog post of April 16, 2025, and advised you to look at the NEW EIP model twice daily from 16 April on: Fire Blight NEWA Model EIP Values In Virginia Predicted 100 and Above with Weather Forecast 19-21 …

As of last night (4/15) the NEWA EIP fire blight model predicts we will reach an EIP of 100 and above in many locations in Virginia and North Carolina (see images below) for the 19-21 April weather forecast. However, Dark Red box “Infection” is not …

TO ALL LOCATIONS WITH THE POME FRUIT IN VIRGINIA: Even though there is no risk in NEWA EIP model for fire blight infection, there is a warning issued this evening for isolated severe thunderstorms predicted for Virginia locations in most of the Shenandoah Valley and …

(I) APPLE SCAB, RUSTS, POWDERY MILDEW: If the weather forecast for 10 – 12 April becomes a reality, and we do get long hours of rain events and leaf wetness predicted, according to NEWA apple scab model we will get a severe apple scab and …

As we predicted in the previous blog post: from 3 – 7 April, Major Fire Blight and Apple Scab Infections Predicted With Rains From 3 – 6 April in All Virginia, Varying Slightly Depending on Location: Look at Your Disease Models, Juniper rusts started being …

(I) BROWN ROT (Monilinia species). In many locations with wet springs, brown rot is key driver of your stone fruit spray program. Fruit protection using alternation of fungicides with different modes of action is essential to avoid fungicide resistance and have good quality fruit at …

1. Heat and rain predicted from 3- 6 April will lead to major fire blight infections in all Virginia:  The below outputs from the NEWA EIP model using NWS forecast show that we are expecting a series wetting events on 3rd, 4th all the way …