Multiple Hazards In Effect; Hazardous Weather Outlook – Hail Possible In Evening 6/8/2025: Be Prepared to Apply Streptomycin Tomorrow if You Get Hail
TO ALL LOCATIONS WITH THE POME FRUIT IN VIRGINIA: There is a warning issued this evening for isolated severe thunderstorms predicted for Virginia locations listed below that have a chance to large size hail and wind gusts that can trigger trauma blight. Trauma blight are infections on green and woody tissues due to mechanical injury by hail and wind. Wind can move fire blight and allow spread to other locations. If you get hail, please apply streptomycin up to 24 h after a hail storm started.
We have prediction of potential large hail and damaging wind gusts predicted and protection is needed if hail occurs.
EMERGENCY SPRAY OPTION: Harbor, or Agrimycin 17 WP, or FireWall 17 WP at 1.5 to 3 lb per acre (24 – 48 oz/A) plus LI 700 at a penetrating rate or use Regulaid instead of LI700. Based on the Regulaid label, you could use 2 pints penetrating rate. FireWall changed its formulation to FireWall 50WP and the rate to use this higher concentrated material is 8 – 16 oz/A. If hail occurred ally this antibiotic up to 24 h after the start of the rain or hail storm today (the sooner after rain the better). Application of streptomycin in mix with Regulaid or LI700 up to 24 h after the infection rain event started allows absorption of antibiotic in green tissue and triggers so called “kick-back” mode of action – killing just established infection during the rain that started hours before with start of rain or hail. Add a fungicide to this application for apple bitter rot.
If you used captan recently, DO NOT add Regulaid or LI700 to the streptomycin applied for this spray. Keep in mind that hail can damage not only fruit but bark on twigs, shoots, branches and trunk, opening wounds that can be infected with fire blight and lead to trauma blight. If you had a recent history of fire blight and storm does occur on your location, this spray is essential. Please examine hail warnings for your specific location along (Source: https://forecast.weather.gov/):
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 433 PM EDT Sun Jun 8 2025 MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- 526-WVZ050>053-055-092045- Washington-Frederick MD-Carroll-Northern Baltimore- Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta- Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson- Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun-Northern Virginia Blue Ridge- Central Virginia Blue Ridge-Northwest Prince William-Hampshire- Morgan-Berkeley-Jefferson-Hardy- 433 PM EDT Sun Jun 8 2025 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Tonight A Flood Watch for potential flash flooding is in effect through 10 PM for portions of central and northern Virginia, the Shenandoah Valley, and Potomac Highlands. Isolated instances of flooding are possible elsewhere. A Tornado Watch is in effect for portions of the area until 10 PM this evening. Scattered severe thunderstorms will be capable of producing damaging wind gusts, large hail, and tornadoes. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter are requested to report any severe weather or flooding to the National Weather Service in Sterling. $$