North Jersey Grape Camp
Wednesday, August 4th at 4:30 PM
Location:
Alba Vineyard
269 County Road 627
Milford, NJ 08848
The meeting will include a vineyard tour, demonstration of vineyard sprayer technologies, discussion of a number of timely topics including, spotted lanternfly and nematode management, weed identification/management, fertility assessment and pesticide safety updates.
The following New Jersey Pesticide Recertification Credits will be awarded:
1-CORE 5-1A 5-10 5-PP2
Refreshments will be provided.
To register please contact Kim Crommelin, Rutgers Cooperative Extension of Hunterdon County at kfrey@co.hunterdon.nj.us or 908-788-1338.
For any questions and additional assistance contact Hunterdon County Agricultural Agent Megan Muehlbauer muehlbauer@njaes.rutgers.edu.
Right on time with last year’s observations, adult spotted lanternflies (SLF) were found in Pilesgrove (Salem County) NJ. In 2020 adults at the same location were found on July 23 so despite the earlier hatch observed in May, the phenology is right on track.
In 2020, adults dispersed in large numbers to commercial vineyards around September 4. I think this dispersal is a combination of depletion of resources (they are literally sucking the sap out of trees) and density. As NJ populations of SLF increase, they are depleting food resources faster. I expect this movement from wooded areas to vineyards will happen earlier this year, likely mid August. There will be a few bugs here and there, but commercial vineyard managers should wait to apply insecticides until you see the larger influx. Across sites, the 10 adults/vine threshold was reached around the same time last year – although some vineyards had much larger numbers per vine – so this is a good threshold to use for now. I will post management recommendations for the adults soon!