Plant & Pest Advisory

July 23, 2015 Dean Polk

Fruit IPM Report 7-22-2015

Peach Oriental Fruit Moth (OFM): While overall pest pressure in peaches is very low for oriental fruit moth, we are at the proper time to treat if your farm has trap captures above 6 males per trap. Timing for third brood OFM applications are as follows: OFM 3nd Generation Timing Insecticide Type County/Region Degree Days […]

Filed Under: Blueberry, Fruit, Tree Fruit, Wine Grape

July 22, 2015 Kris Holmstrom and Joe Ingerson-Mahar

Veg IPM Update: Week Ending 7/22/15

Sweet Corn European corn borer (ECB) adult activity is starting to increase in parts of the state now. This is the beginning of the second adult flight. Areas of highest activity are currently along the Delaware Bay Shore and in central Morris County (see ECB map), but areas between should fill in over the next […]

Filed Under: Vegetable Crops

July 22, 2015 Andy Wyenandt

Cucurbit Downy Mildew Reported: Watermelon & Butternut Squash in NJ ALERT – 7/22/15

Cucurbit downy mildew has been reported on watermelon (Warren County) and butternut squash (Hunterdon County) in Northern New Jersey. This is the first report on both crops this season. Downy mildew was confirmed on cucumber in New Jersey on July 9th. All cucurbit growers should include downy mildew specific fungicide(s) in their weekly programs. For […]

Filed Under: Vegetable Crops

July 21, 2015 Norman Lalancette

Brown Rot Management in a Wet Growing Season: Part I

Mid-July has arrived and the 2015 peach harvest season has begun in earnest. As each successive crop of fruit mature and ripen, they become susceptible to infection by the brown rot fungal pathogen, Monilinia fructicola. Since spores of this pathogen require water to germinate, the number of fruit infection periods and therefore severity of the […]

Filed Under: Tree Fruit

July 21, 2015 A.Wyenandt, W.Kline, and J.Ingerson-Mahar

Potato | Tomato Disease Forecast 7-21-15

Click to View | Download Report 7-21-15 Potato Disease Forecasting Report We will be tracking DSVs for Late blight development and calculating P-days for initiating the first early blight fungicide application. The first late blight fungicide application is recommended once 18 DSVs accumulate from green row. Green row typically occurs around the first week in May […]

Filed Under: Disease Forecasting

July 20, 2015 Andy Wyenandt

Vegetable Disease Briefs – 7/20/15

There have been no new reports of late blight in New Jersey since 7/8. To track late blight in the US please visit http://usablight.org/ Cucurbit downy mildew has been reported on cucumber in New Jersey and on cucumber and butternut squash in PA this past week. To track the progress of CDM in the US […]

Filed Under: Vegetable Crops