- Asparagus: Phytophthora crown and spear rot
- Cabbage: Damping-off
- Cole crops: Downy Mildew and Alternaria
- Leeks (overwintered, spring transplanted): Purple blotch
- Lettuce: Bottom Rot/Drop
- Parsley: Septoria Blight/Bacterial (blight) leaf spot
- Strawberry: Anthracnose fruit rot; Botrytis (Gray Mold) and Blossom blight
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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April 11, 2013 Andy Wyenandt
Vegetable Disease Update: 4/11/2013
April 1, 2013 Brad Majek
Perennial Weed Control Using Cultural/Mechanical Techniques
Most annual and perennial weeds reproduce from seed, but many perennials also reproduce vegetatively. Examples of vegetative reproductive parts of weeds include stolens, rhizomes, roots, tubers, bulbs, and nutlets. Bermudagrass has stolens, which are above ground horizontal stems. Quackgrass spreads by rhizomes, which are underground horizontal stems. Canada thistle, milkweed, hemp dogbane, horsenettle, and bindweed species have a deep complex root system with distinct vertical and horizontal roots. Wild bean has tubers. Nutsedge has nutlets that can live dormant in the soil for several years. Perennial weeds are much more difficult to control than annual weeds. [Read more…]
April 1, 2013 Joe Ingerson-Mahar
Guthion Use in Parsley
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The Environmental Protection Agency has extended the time for the use of existing stocks of Guthion (azinphos-methyl) in parsley and certain tree fruit crops. A supplemental label was registered for 2013 allowing the use of guthion until September 30. Guthion can no longer be purchased and is in a 6 year phase out period.
March 29, 2013 Joe Ingerson-Mahar
Early Spring Insect Pests
With a cold, wet March, the spring crops have been slow to be put in, and consequently there have been few pest concerns. However, this will change with the onset of temperatures nudging 60⁰ F and drier conditions. There is always the question of how well did the insects survive the winter. [Read more…]
March 25, 2013 Richard Buckley
Might be Mites on Your Spinach?
Tan lesions due to the fungus Cladosporium variable on spinach. Photo: Sabrina Tirpak, Rutgers PDL
Spinach samples were submitted to the Plant Diagnostic Laboratory today from a local organic grower. They were submitted for the diagnosis of a leaf spot disease, but closer evaluation revealed much more. [Read more…]
March 19, 2013 Andy Wyenandt
New Supplemental Label for Priaxor
Priaxor: For disease control and plant health in fruiting vegetables (0-day PHI).
