Rutgers Cooperative Extension
Daily high soil temperatures at the 2-inch depth are consistently getting into the 60s°F. Yesterday, temperatures in sunny locations reached into the upper 60s. This means that the warm-season species are, or will be soon waking from winter slumber.
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Degree-day benchmarks indicate discrete biological events in the development of insect pests. For the Sparganothis fruitworm, recent studies conducted by Dr. Shawn Steffan (USDA-ARS/University of Wisconsin-Madison), Annie Deutsch (University of Wisconsin-Madison), and Cesar Rodriguez-Saona (Rutgers University) have isolated the key development events and linked them to degree-day (DD) accumulations. These degree-day accumulations can improve treatment […]
Continue reading...Often considered a minor pathogen, angular leaf spot caused by the bacterium, Xanthomonas fragariae, can cause serious leaf and calyx infections ruining the marketability of fruit if left uncontrolled. Like all bacterium, the pathogen will infect leaves and the calyx through natural openings or wounds. Infections can often start in production operations and come in […]
Continue reading...Fruit rots in strawberry can cause significant losses if not recognized early and controlled. The use of good cultural practices such as: keeping fields weed-free and promoting good drainage; long crop rotations, and preventative fungicide applications are critical. Pathogens such as anthracnose, gray mold (Botrytis), and leather rot can become systemic problems in strawberry plantings […]
Continue reading...Basil downy mildew has been found in potted greenhouse-grown basil. All growers producing basil should scout on a regular basis. Basil downy mildew is seed-borne and can cause significant losses. Late blight has been found in FL and CA. To track the movement of Late blight in the US please visit USAblight. Cucurbit downy mildew […]
Continue reading...Cabbage Damping-off – To help control losses due to damping-off pathogens apply Ridomil Gold (mefenoxam, FRAC code 4) at 1 to 2 pt/A, MetaStar (metalaxyl, 4) see label, or azoxystrobin at 0.40 to 0.80 fl oz 2.08SC/1000 row ft (for Rhizoctonia only), or Ridomil Gold at 1.0 to 2.0 pt/A 4SL plus azoxystrobin at 0.40 […]
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