Basil downy mildew on the upper surface of a leaf. Photo by Eric Sideman. And on the lower leaf surface. Photo by Eric Sideman. By Eric Sideman, Ph.D. This winter I have been lecturing at organic growers’ meetings about new and emerging insects and diseases. I don’t know if the weather, the climate or some
State develops plan for possible spraying By MOFGA Staff Arboviral diseases are transmitted by arthropod vectors such as mosquitoes and include Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV). Because EEE and WNV have been detected in Maine, the Maine Legislature directed the Maine Department of Agriculture, Conservation and Forestry (MDACF) and the Maine
Onion thrips (left) and western flower thrips (right). Alton N. Sparks, Jr., University of Georgia. From https://en.wikipedia.org/wiki/File:Thrips_tabaci,_Frankliniella_occidentalis.jpg By Tom Vigue Before 2002, I had seen the insect called thrips only under a microscope in entomology lab. Then in early July 2002, my onion crop was withering when the bulbs had just begun to size up,
By Roberta Bailey Fava beans (Vicia faha) are an Old World legume, originating in the Near East. They were probably the first domesticated food crop. From the Neolithic period onward, they appear in myth, Egyptian tombs, and archeological sites of the Mediterranean basin, China, and Northern Africa. Prior to the discovery of the Americas, favas
By Kerstin Tengeler I am an organic vegetable farmer in St. Lawrence County in upstate New York. My partners and I use row covers on our 4-acre farm to extend our growing season and to protect our crops from insects and deer. Because minimizing the use of plastics that end up in landfills is important
By Lee Stivers, Frances Tucker and Claudia Olivier Integrating cover crops into vegetable production systems is a good idea. Cover crops add organic matter to our often carbon-starved vegetable soils, improve tilth in soils damaged by frequent tillage or heavy machinery; recycle plant nutrients; and in some cases suppress weeds and other pests. Vegetable growers
These apple leafhopper nymphs and adult show the shape of the insect. Potato leafhoppers are the same shape but greenish in color. Photo courtesy of Don Barry, Univ. of Maine Pest Management Office. By Eric Sideman, Ph.D. MOFGA’s Director of Technical Services Last year towards the end of June and early July, I started to
Leafhopper burn on potato foliage. Eric Sideman photo. Phosphorus deficiency in corn. Eric Sideman photo. The Season is Beginning. Don’t Misdiagnose Your Problems. By Eric Sideman, Ph.D. This is a good time of year to study up on the biology and symptoms of problems that may later arise in your crops. Problems will arise, and
Figure 1 – The female spotted wing Drosophila (fruit fly), a new pest in New England, uses her serrated ovipositor to make a hole in sound fruit and lay her eggs, which develop into larvae in the fruit. Photo courtesy of Alan Eaton of the University of N.H. By Eric Sideman, Ph.D. I am usually
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