For over a decade, basil downy mildew (BDM) has caused significant losses in basil grown in organic and conventional field and greenhouse production across the United States. At the time of its introduction, there were very few fungicides labeled for its control making it nearly impossible to grow a successful crop in many areas of the country. [Read more…]
Vegetable Crops Edition
Seasonal updates and alerts on insects, diseases, and weeds impacting vegetable crops. New Jersey Commercial Vegetable Production Recommendations updates between annual publication issues are included.
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NJ Commercial Vegetable Production Recommendations
Rutgers Weather Forecasting - Meteorological Information important to commercial agriculture.
August 11, 2021 Kris Holmstrom and Joe Ingerson-Mahar
Vegetable IPM Update 08/11/21
Sweet Corn
European corn borer (ECB) moths have been captured at more locations over the past week, but numbers remain very low, and feeding has rarely risen to detectable levels. ECB population maps will resume if second flight catches rise to high enough numbers.
The highest nightly blacklight trap catches of ECB for the week ending 08/11/21 are as follows:
| Califon 1 | Jones Island 1 | South Branch 1 |
| Crosswicks 1 | Medford 1 | |
| Downer 1 | New Egypt 1 |
August 5, 2021 Andy Wyenandt
Vegetable Disease Update – 8/05/21
- Northern Corn Leaf Blight has been reported in southern and northern New Jersey. For more information please check the Vegetable IPM Update by clicking here.
- Southern Blight has been reported in sugar beet in southern New Jersey.
- Bacterial wilt is being reported on multiple cucurbit crops in New Jersey.
- Phytophthora blight is being reported in pepper and cucurbit crops. For more information on Phytophthora blight control please click here.
- Pepper anthracnose is being reported in southern New Jersey. For more information on preparing for pepper anthracnose please click here.
- Cucurbit downy mildew has been reported on cucumber (6/16/21) and cantaloupe (6/22/21) in southern New Jersey. There have been no reports of CDM on other cucurbit hosts in the region to date. For more information on CDM and its control please click here. To track the progress of CDM please visit the CDM forecasting website.
- No reports of Late blight in the region. To track the progress of Late blight in the US please click here.
- Cucurbit powdery mildew has been reported on summer squash, butternut, and spaghetti squash as we are now headed into mid-summer. Please scout fields on a regular basis and initiate a preventative fungicide program if you haven’t already done so. For more information on CPM control please click here.
- Bacterial leaf spot (BLS) continues to be reported on bell and non-bell peppers in southern New Jersey. For more information on our continuing survey for BLS and copper resistance detection in tomato and pepper please click here.
- For an update on Dickeya dianthicola research in potato please click here.
- The 2020/2021 Commercial Vegetable Production Recommendations Guide is available for free online.
- For a quick review on managing fungicide resistance development using tank mixes and fungicide rotations, and information on FRAC group 4, FRAC group 7, and FRAC group 3 and FRAC group 11 fungicides please click on hyperlinks.
August 4, 2021 Kris Holmstrom and Joe Ingerson-Mahar
Vegetable IPM Update 08/04/21
Sweet Corn
European corn borer (ECB) moths have been captured at a few more locations over the past week, although recording sites are relatively few and numbers are very low. ECB population maps will resume if second flight catches rise to high enough numbers.
The highest nightly trap catches of ECB for the week ending 08/04/21 are as follows:
| Blairstown 1 | Hillsborough 1 | New Egypt 1 |
| Downer 1 | Medford 1 | |
| Flanders 1 | Milltown 1 |
July 30, 2021 Wes Kline
Vegetable Twilight Meeting and Research Tour
Thursday, August 19, 2021, 4:00 pm (meet at the shelter near the parking lot)
Rutgers Agricultural Research & Extension Center
121 Northville Rd., Bridgeton, NJ (Upper Deerfield)
4:00 – Discussion
Strawberry Soil Fertility – Bill Hlubik, Middlesex County Agricultural Agent
Silicon, Sulfur and Manganese Nutrition for Protecting Cucurbits from Powdery Mildew – Joe Heckman, PhD, Specialist in Soil Fertility
Rutgers Covid-19 Project – Rick VanVranken, Atlantic County Agricultural Agent
Sustainable Agriculture and Research and Extension (SARE) Farmer Grants a Way to Try New Things and Cover the Cost – Michelle Infante-Casella, Gloucester County Agricultural Agent
4:30 – Tour
Evaluation of Bell Pepper Varieties and Breeding Lines for Bacterial Leaf Spot and Phytophthora Blight Management – Wes Kline, PhD, Cumberland County Agricultural Agent
Cover Crops for Between Beds in Plasticulture Cucumbers – Thierry Besancon, PhD, Extension Weed Specialist for Specialty Crops
Update on Breeding for Fusarium Wilt Resistance in Basil – Kathryn Homa, IR-4 Program
Anthracnose Control in Peppers – Andy Wyenandt, PhD, Specialist in Vegetable Pathology
Phytophthora Blight Control Through the Use of Fungicides – Andy Wyenandt, PhD, Specialist in Vegetable Pathology
Control of Basil Downy Mildew with Organic Materials – Andy Wyenandt, PhD, Specialist in Vegetable Pathology
The Effects of Simulated Dicamba Drift on Cucumber and Snap Bean Yields – Maggie Wasacz, Rutgers Graduate Student
Sweet Corn Demonstrating the Differences/Effectiveness of Non-Bt, Providence Bt, and Attribute II Bt Varieties for Resistance to Corn Earn Worm and Fall Army Worm – Joe Ingerson-Mahar, PhD, Vegetable IPM Coordinator
Update on Industrial Hemp Research in South Jersey – Raul Cabrera, Specialist in Nursery Production and Management
PESTICIDE CREDITS UNITS
1A Agriculture Plant 9
10 Demonstration and Research 9
PP2 Private Applicator 9
Note: face masks and hand sanitizers will be available
July 29, 2021 William Errickson
Spotted Lanternfly Reporting Tool
Spotted Lanternfly (SLF) sightings are increasing on many NJ farms, especially as customers from across the tri-state area visit agritourism and pick-your-own operations, contributing to the spread of this invasive insect. Accurate reporting is important for understanding the movement of this pest and for developing a comprehensive management plan.
SLF sightings should be reported to the NJ Department of Agriculture using their online reporting tool: https://www.nj.gov/agriculture/divisions/pi/prog/pests-diseases/spotted-lanternfly/#reporting-tool
If the sighting was in a known quarantine county (Burlington, Camden, Gloucester, Hunterdon, Mercer, Salem, Somerset, or Warren) you do not need to fill out the report.
Additional resources for managing SLF on your farm can be found at:
