Peach Oriental Fruit Moth (OFM): We are between 2nd and 3rd generation broods in southern counties, but still treating emerging larvae in northern counties. Growers who have trap counts that are less than 6 moths per trap can skip insecticides that are intended for OFM. If trap counts are higher, then time your sprays according […]
Continue reading...July 1, 2015 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 7/1/15
Sweet Corn We are between European corn borer (ECB) adult generations at this time. Only scattered individuals are being captured throughout NJ (see ECB map). ECB infestations are still present in some sweet corn plantings, but whorl stage corn is now largely free of ECB injury. As always, consider treating when the number of infested […]
Continue reading...July 1, 2015 Richard Buckley
Too Much of Everything is Just Enough
Right along with stormy skies, the Plant Diagnostic Laboratory is firing up with golf turf samples. We’ve seen it all lately: anthracnose, summer patch, slime molds, take-all, Pythium root diseases, annual bluegrass weevils, black turfgrass ataenius, and lots of wear and tear. Here are a couple of random notes from the last week or two:
Continue reading...July 1, 2015 A.Wyenandt, W.Kline, and J.Ingerson-Mahar
Potato | Tomato Disease Forecast 7-1-15
Click to View | Download Report 7-1-15 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 […]
Continue reading...June 29, 2015 Anne Nielsen
Wine Grape Alert: Assess Protection Against Grape Berry Moth
Grape berry moth is one of the key direct pests of grapes in NJ. Females lay their eggs on the berry and the larvae makes a small entry hole and then feeds inside the berry. Webbing may be observed as the larvae move between berries. A threshold of 10% webbing has been used in NY […]
Continue reading...June 28, 2015 Andy Wyenandt
Phytophthora Control During Wet Weather
Most of New Jersey has been plagued by heavy rains and pop-up thunderstorms these past few weeks making conditions ideal for pathogens such as Phytophthora blight (P. capsici) on pepper, eggplant, tomato, and cucurbit crops. Unfortunately, Phytophthora blight can be found on most farms in the southern part of the state. Poor crop rotations with susceptible hosts only […]
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