- Downy mildew remains active on all cucurbit crops. All cucurbit growers should include downy as well as powdery mildew specific fungicides in their weekly maintenance sprays. Please remember different modes-of-Action (i.e., FRAC groups) to help manage fungicide resistance develop in both pathogens. To track the progress of CDM in the US please visit http://cdm.ipmpipe.org/
- There have been no new reports of late blight in New Jersey. Remember as fall approaches and night temperatures become cooler and light fogs begin to develop conditions for late blight development improve. All abandoned tomato blocks/fields need to be disked under as soon as harvesting is done or sprayed with gramoxone to kill all living foliage. To track late blight in the US please visit http://usablight.org/
- Downy mildew was reported on turnip greens this past week. The cool, damp mornings with lingering dew have been ideal for downy mildew development across many crops.
- Basil downy mildew remains active.
Search Results for: basil downy mildew
September 21, 2015 Andy Wyenandt
Vegetable Disease Briefs – 9/21/15
August 11, 2015 Andy Wyenandt
Vegetable Disease Briefs – 8/11/15
- Bacterial leaf spot race 6 has been confirmed on bell pepper in the Vineland area. This has major implications since all widely-grown peppers (bell and non-bell) in New Jersey do not have resistance to this race. All bell peppers growers need to scout on a regular basis and know what BLS resistance packages are present in the varieties they are growing.
- There have been no new reports of late blight in New Jersey since 7/8 although it has been reported in other States in the region. 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. All cucurbit growers should include downy as well as powdery mildew specific fungicides in their weekly maintenance sprays. To track the progress of CDM in the US please visit http://cdm.ipmpipe.org/.
- Basil downy mildew remains active across the region.
- Pepper anthracnose has been reported.
August 2, 2015 Andy Wyenandt
Vegetable Disease Briefs – 8/2/15
- There have been no new reports of late blight in New Jersey since 7/8 although it has been reported in other States in the region. 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. All cucurbit growers should include downy as well as powdery mildew specific fungicides in their weekly maintenance sprays. To track the progress of CDM in the US please visit http://cdm.ipmpipe.org/.
- Bacterial leaf spot is being reported on pepper and tomato. There is evidence that BLS race 6 and/or 10 is present in New Jersey this season. Samples have been submitted for confirmation.
- Basil downy mildew remains active across the region.
July 29, 2015 Jack Rabin
Vegetable Twilight Meeting & Research Tour
Date: Thursday, August 20, 2015, 5:30 p.m.
Location: Meet at the trailer near parking lot
Rutgers Agricultural Research & Extension Center
121 Northville Road, Bridgeton, NJ (Upper Deerfield)
Agenda
- 5:30: Taste the new tomato breeding lines that will be released soon and tour the tomato plots
Tom Orton, PhD, Specialist in Vegetables
Check out a mobile market/portable cooler trailer with CoolBot™’s alternative to high cost refrigeration units
Rick VanVranken, Agricultural Agent Atlantic County - 6:00: *Summer/Winter Squash and Cucumber fungicide evaluations for Downy and Powdery Mildew Control
C. Andrew Wyenandt, PhD, Specialist in Vegetable Pathology - 6:30: Advances in breeding lines and fungicide evaluation for basil Downy Mildew Control
Rob Pyne, Graduate Student, Rutgers and C. Andrew Wyenandt, PhD - 7:00: Fungicides for controlling Phytophthora Blight control in cucurbits
C. Andrew Wyenandt, PhD - 7:30: Evaluation of Bell Peppers cultivars and breeding lines for Phytophthora tolerance
C. Andrew Wyenandt, PhD - 8:00: *Slicing and pickling cucumber variety evaluation for yield and Downy Mildew tolerance
Wes Kline, PhD, Agricultural Agent - 8:30: Phomopsis Blight control in eggplant
C. Andrew Wyenandt, PhD
*The cucurbit studies are funded in part through the Charles E. and Lena Maier Fund, the Vegetable Growers Association of New Jersey and the New Jersey Agricultural Experiment Station
July 29, 2015 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 7/29/15
Sweet Corn
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European corn borer (ECB) adult activity is stable, with low level activity in parts of the state now. This is the beginning of the second adult flight. Areas of highest activity are still along the Delaware Bay Shore and in central Morris County (see ECB map), but areas between should fill in over the next week.
As always, consider treating when the number of infested plants in a 50 plant sample exceeds 12%. Any planting remaining at or above threshold as it proceeds to full tassel should be treated, as this is the last stage at which ECB larvae will be exposed and vulnerable to insecticidal sprays.
See the 2015 Commercial Vegetable Recommendations Guide for insecticide choices.
[Read more…]
July 22, 2015 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 7/22/15
Sweet Corn
Click to View
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 week.
As always, consider treating when the number of infested plants in a 50 plant sample exceeds 12%. Any planting remaining at or above threshold as it proceeds to full tassel should be treated, as this is the last stage at which ECB larvae will be exposed and vulnerable to insecticidal sprays.
See the 2015 Commercial Vegetable Recommendations Guide for insecticide choices.
[Read more…]
