Rutgers Cooperative Extension
This year we observed damage to cranberries likely caused by an unknown “mirid” bug (Hemiptera: Miridae). These insects are known as true bugs and have piercing-sucking mouthparts to suck juices out the plants. The species has now been identified by Dr. Thomas Henry, from USDA-ARS-Systematic Entomology Laboratory in Beltsville, MD, as Plagiognathus repetitus (Hemiptera: Miridae). The insect […]
Continue reading...Cole Crops Pumpkin Spinach Cole Crops Downy mildew and Alternaria – Symptoms of downy mildew include purple to yellowish-brown spots on upper leaf surfaces. A grayish-white spore mass will develop and cover the underside of leaves under ideal temperatures (night temperatures of 46 to 61°F and day temperatures below 75°F). Downy mildew can kill young […]
Continue reading...Basil downy mildew remains active. The weather this time of year is ideal for downy mildew development across many crops. Growers should remain diligent going into the fall with regular scouting and preventative fungicide applications. Cucurbit downy and powdery mildew remain active. Growers holding mature pumpkins in the field for the next few weeks should […]
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The effects of a cold night a few weeks ago are showing up in some varieties of cucumber around New Jersey. Symptoms on maturing fruit appear as brownish-tan areas on the epidermis of fruit. The fruit will also show cracking as if it has a dry rot. The effects are physiological where areas of young developing fruit got […]
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Note: The backlight network is now being dismantled. Some traps will remain in operation for the next few weeks as crops continue. No maps will be produced for the remainder of the season, but pertinent pest information will be reported in subsequent weekly updates. Topics for the Week Sweet Corn Tomatoes Pumpkins and Winter Squash […]
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Recently, surface soil temperatures have been dropping below 70° F at night. While this is a good temperature range for growth of cool season grasses, it is a signal that much cooler soils are not far away. Grow of new seedings, overseedings, and turfs needing recovery will slow dramatically once soil temperatures break below the […]
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