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UrduThough patches of wild onions, known as ramps, may appear thick and widespread for plucking each spring in Appalachia, West Virginia University experts caution overharvesting is a threat in many locations. Melissa Marra, associate professor of nutritional sciences at the…
Tag: Onions
Treatments tested for invasive pest on allium crops
A Cornell University-led team of researchers field-tested 14 active ingredients in insecticides, applied in a variety of methods, to understand the best treatment options against the Allium leafminer, a growing threat to onions, garlic and leeks.
Onion growers have new tool versus fungicide-resistant disease
Five years ago, onion growers in New York state started reporting large incidents of premature leaf death in their fields. It affected nearly 75% of growers’ crops and put a dent in the state’s onion industry, which has a four-year average value of $44.7 million, based on data from the U.S. Department of Agriculture. Researchers identified the culprit as Stemphylium leaf blight (SLB), a relatively new and increasingly devastating disease. In a recent study, researchers at Cornell AgriTech have identified better ways to manage SLB and use fungicide more effectively.