By Heather Cooper •
Plant & Pest Advisory – July 9, 2025 On July 3, 2025, the USDA Agricultural Marketing Service released 3 new addenda to the Harmonizedand Harmonized GAP Plus+ Standards: Warehouse, Food Defense, and Integrated Pest Management.All of which will require additional records. Requirements in the existing Harmonized andHarmonized GAP Plus+ standards have not changed. These new […]
By Heather Cooper •
Plant & Pest Advisory – July 11, 2025 – Andy Wyenandt As the summer heats up in New Jersey, the control of Phytophthora blight in cucurbit plantings canbe extremely difficult (even with the use of fungicides) as hot, wet weather has set in these past fewweeks. Mitigating losses to Phytophthora blight in cucurbit crops begins […]
By Heather Cooper •
Plant & Pest Advisory – July 1 2, 2025 – Andy Wyenandt Verticillium wilt has been reported in eggplant this summer. It is a common soil-borne fungal pathogenthat once it has infested soil can remain for a very long time. Verticillium wilt is caused by eitherVerticillium albo-atrium or Verticillium dahlia and has a wide host […]
By Heather Cooper •
Plant & Pest Advisory – July 1 2, 2025 – Andy Wyenandt Phomopsis blight is caused by the fungal pathogen, Phomopsis vexans. It survives between seasonsin the soil on infested plant debris. Although the pathogen can infect stems and older leaves, fruitinfections are most prominent. Cankers that develop on stems and branches can cause the […]
By Heather Cooper •
Plant & Pest Advisory – July 27, 2025 – Andy Wyenandt Symptoms usually begin to appear on random plants throughout the field as green fruit begins tomature. The bacterium (Pseudomonas corrugata) is ubiquitous to soils and develops when weatherconditions (cooler nights/very hot, humid days) and cultural practices (i.e., excess heavy N use) leadto favorable conditions […]
By Heather Cooper •
Plant & Pest Advisory – July 23, 2025 – Andy Wyenandt Asparagus growers should consider scouting their fields regularly during the summer months for foliardisease development. Important pathogens that growers need to scout for on a regular basis includePurple spot, Cercospora, and Rust. These pathogens are easily diagnosed by the characteristicsymptoms they produce on infected […]
By Heather Cooper •
Plant & Pest Advisory – July 23, 2025 – Andy Wyenandt Angular leaf spot, caused by the bacterium (Pseudomonas syringae pv. lachrymans), is common inNew Jersey and the region. Although it often shows up during cooler, wet weather; it can show upalmost anytime during the production season with favorable weather conditions for its development.Angular leaf […]
By Heather Cooper •
Plant & Pest Advisory – July 13, 2025 – Andy Wyenandt There have been a few reports of Southern blight (Sclerotinia rolfsii) and Whitemold (Sclerotinia sclerotiorum) on tomato and pepper in New Jersey. Southernblight is much more common in vegetable areas south of the statewhere summer temperatures remain hotter (above 90°F) for longer periods oftime. […]
By Heather Cooper •
Plant & Pest Advisory – July 7, 2025 – Andy Wyenandt Tobacco Streak Virus (TSV) was found on fresh-market tomato this past week insouthern New Jersey. TSV has a host range of close to 200 species, includingcranberry, tobacco, tomato, pepper, asparagus, bean, soybean, mustard, radish,a number of ornamental hosts as well as weeds such as […]
By Heather Cooper •
Plant & Pest Advisory – June 10, 2025 – Andy Wyenandt Calling all commercial basil growers, researchers, home gardeners, and basil enthusiasts! Our team atRutgers University, UMass Amherst, Bar-Ilan University, and University of Florida are asking for your help! Basil production is still threatened by the devastating Basil Downy Mildew disease and current methods of […]
By Heather Cooper •
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu The June 13th, issue of Weekly Crop Update Volume 33, Issue 14 – University of Delaware Cooperative Extension As we try to maximize the trips across the field, more and more products are being tank mixed together.Sometimes tank mixtures are not recommended due to a loss of efficacy when […]
By Heather Cooper •
Note: This article was written by Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu at the University of Delaware. She has listed planting dates for Delaware which should be appropriate for South Jersey. The summer weather is just getting rolling but it is time to plan for vegetable plantings that will be harvested in the […]
By Heather Cooper •
Plant & Pest Advisory – June 18, 2025 – Michelle Infante-Casella With higher temperatures increasing hatch times and spring grains like wheat and rye have dryingdown, thrips may be more prevalent in vegetable crops, especially when small grains are adjacent tovegetable fields. Thrips are very small and often missed if casually looking at a plant […]
By Heather Cooper •
(Supersedes original advisory #2025-05 issued on 05/06/2025) Compliance Advisory – New Jersey Department Of Environmental Protection #2025-07 Issued: 06/03/2025 WHO IS AFFECTED BY THIS ADVISORY?Commercial pesticide applicators and businesses involved in outdoor non-agricultural use of pesticides,including in the lawn and landscape, tree care, and golf course industries. Pursuant to P.L. 2021, c.386,found at N.J.S.A. 13:1F-4.2 […]
By Heather Cooper •
June 2, 2025 – Plant and Pest Advisory – Michelle Infante-Casella, Kate Brown, Stephen Komar and Bill Bamka Heat exposure for agricultural laborers should be a consideration when working outside and even innon-air-conditioned buildings. When a person’s ability to adapt to heat stress is exceeded, exposurecan lead to reduced productivity, mistakes in job performance, increased […]