The new Devrinol formulation, Devrinol DF-XT, is still a fifty percent dry flowable formulation, but includes UV (ultraviolet light) protection, so the product is no longer broken down on the soil surface by sunlight. [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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June 7, 2013 Andy Wyenandt
2013 Cucurbit Downy and Powdery Mildew Management Guidelines
by Margaret McGrath, Beth Gugino, Kate Everts, Steve Rideout, Nathan Kleczewski, and Andy Wyenandt
2013 Fungicide Resistance Management Table for Cucurbit Downy and Powdery Mildew Control
Producing a high-quality cucurbit crop necessitates effectively managing downy mildew. This foliar disease is common in the mid-Atlantic and northeast because the pathogen produces a large quantity of asexual spores that are easily dispersed long distances by wind, which enables it to spread widely. Although the pathogen cannot survive between growing seasons where winter temperatures kill cucurbit crops, it moves throughout the eastern USA each year via its asexual spores. The pathogen does not affect fruit directly; however, affected leaves die prematurely which results in fewer fruit and/or fruit of low quality (poor flavor, sunscald, poor storability). [Read more…]
June 7, 2013 Andy Wyenandt
Vegetable Briefs and Disease of the Week
- Cucurbit downy mildew was reported as far north in Wayne and Nash Counties in North Carolina and Texas this past week. All cucurbit growers are urged to begin scouting. To track cucurbit downy mildew in the US please visit http://cdm.ipmpipe.org/
- No late blight has been reported in the region to date and has only been found as far north as central Florida to-date. To track late blight in the US please visit http://usablight.org/
- Want more information on what’s going on, please sign up for the Jersey Vegetable Crop Ag Updates at: http://jerseyvegcropsagupdates.blogspot.com/.
- An update and results from Penn State University on the strawberry virus survey they conducted this spring can be found here.
Vegetable Disease of the Week
Cucurbit downy mildew of cucumber
June 5, 2013 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 6/5/13
Vegetable IPM Report 6-5-13 – Click to View | Download | Print
In this report:
- Sweet Corn
- Cole Crops
- Peppers
- Brown Marmorated Stinkbug
Click on Map to Enlarge
June 2, 2013 Andy Wyenandt
Cuprofix Ultra Disperss for bacterial blight in Cilantro
Click to View | Print
A supplimental label has been obtained for the use of Cuprofix Ultra Disperss for the suppression of bacterial blight (Pseudomonas sp.) in cilantro.
Apply Cuprofix Ultra Dispress at 1.3 lb/A on a 10 day interval. Bacterial blight of cilantro is caused by a opportunistic bacterium that is ubiqutious in most soils. Especially, in soils where Cilantro and Parsley have been grown in the past. Once in the soil the bacterium can survive for a long time. The bacterium can also be seed-borne. Unfortunately, there are no current seed treatments to help reduce the chances for bacterial blight.
See PDF of label attached for more information:
http://tinyurl.com/cuprofix-ultra-disperss
June 1, 2013 Andy Wyenandt
Vegetable Briefs 6-1-13
- Cucurbit downy mildew was reported on cucumber as far north as Southern Georgia 2 weeks ago. To track cucurbit downy mildew in the US please visit http://cdm.ipmpipe.org/
- No late blight has been reported in the region to date and has only been found as far north as central Florida to-date. To track late blight in the US please visit http://usablight.org/
- Reports of Phytophthora blight on pepper have begun.
- Blackleg has been reported on potato.
- Want more information on what’s going on, please sign up for the Jersey Vegetable Crop Ag Updates at: http://jerseyvegcropsagupdates.blogspot.com/.
