By Heather Cooper •
Plant & Pest Advisory – January 14, 2026 – Andy Wyenandt, Maria Creamer, and Amanda Quadrel Tomato spotted wilt virus (TSWV) has caused significant problems for some fresh-market tomato andpepper growers in New Jersey the past few growing seasons. Although not uncommon, economiclosses these past few years have been extensive.TSWV is vectored by various species […]
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 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 9, 2024- 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 for […]
By Heather Cooper •
Plant & Pest Advisory – May 31, 2024 – Andy Wyenandt Copper resistance in bacterial leaf spot of tomato and pepper crops has been detected at a high level inNew Jersey the past few summers. While not surprising, copper resistance has been known to develop for decades now. Copper applications for the control of bacterial […]
By Heather Cooper •
Plant & Pest Advisory- May 15, 2024- Andy Wyenandt Collar rot (Alternaria linariae) or Alternaria stem rot (Alternaria alternata f. sp. lycopersici) of tomatoare common in young tomato plants. Either can be particularly troublesome in seedlings that havebeen held in transplant flats for an extended period of time before transplanting in hot, humid greenhouses. Collar […]
By Heather Cooper •
Plant & Pest Advisory – Andy Wyenandt Southern blight is much more common in vegetable areas south of the state where summer temperatures remain hotter (above 90°F) for longer periods of time. Like white mold, it can survive in the soil for many years. Symptoms of Southern blight include infection at the base of the […]
By Heather Cooper •
Plant and Pest Advisory – Andy Wyenandt – September 13, 2024 Tomato spotted wilt virus (TSWV) has caused significant problems for some fresh-market tomato andpepper growers in New Jersey the past few growing seasons. Although not uncommon, economiclosses these past few years have been extensive on some farms. TSWV is vectored by various species of […]
By Heather Cooper •
Plant & Pest Advisory – June 9, 2024- Andy Wyenandt Symptoms usually begin to appear on random plants throughout the field as green fruit begins to mature. The bacterium (Pseudomonas corrugata) is ubiquitous to soils and develops when weather conditions (cooler nights/very hot, humid days) and cultural practices (i.e., excess heavy N use) lead to […]
By Heather Cooper •
Plant & Pest Advisory- May 19, 2024- Andy Wyenandt Botrytis, or gray mold, caused by the fungus, Botrytis cinerea, can cause significant losses in high tunnel and greenhouse tomato production if not controlled properly. The pathogen can rapidly spread during periods when structures are closed and when relative humidity remains high for long periods of […]
By Heather Cooper •
Plant & Pest Advisory- May 9, 2024- Andy Wyenandt There have been a few reports of Southern blight (Sclerotinia rolfsii) and White mold (Sclerotinia sclerotiorum) on tomato and pepper in New Jersey. Southern blight is much more common in vegetable areas south of the state where summer temperatures remain hotter (above 90°F) for longer periods […]
By Heather Cooper •
Plant & Pest Advisory- May 15, 2024- Andy Wyenandt Collar rot (Alternaria linariae) or Alternaria stem rot (Alternaria alternata f. sp. lycopersici) of tomato are common in young tomato plants. Either can be particularly troublesome in seedlings that have been held in transplant flats for an extended period of time before transplanting in hot, humid […]
By Karleen Wilford •
Andy Wyenandt, Rutgers Cooperative Extension There have been a few reports of Southern blight (Sclerotinia rolfsii) and White mold (Sclerotiniasclerotiorum) on tomato and pepper in New Jersey. Southern blight is much more common in vegetableareas south of the state where summer temperatures remain hotter (above 90°F) for longer periods of time. Like white mold, it […]
By Salvatore Mangiafico •
Michelle Infante-Casella, Rutgers Cooperative Extension Source: plant-pest-advisory.rutgers.edu/magnesium-deficiency-in-tomato How can growers prevent nutrient deficiencies in crops? Soil testing and tissue testing for fertility management of vegetable crops is key to having the correct levels of nutrients to have a high yielding, high quality crop to harvest and market. Soil testing is best done in fall so […]