Pests: Imported Cabbageworm (Pieris rapae), Diamondback Moth (Platella zylostella), Cabbage Looper (Trichoplusia ni)rioceris duodecimpunctata) The first sign of imported cabbageworm is typically one or more white moths with dark marks on their wings fluttering around brassica plants during the day. Also known as cabbage whites, these moths lay ⅛-inch long eggs singly on brassica crop
Pest: Onion Thrips (Thrips tabaci) Pest/disease Identification and lifecycle, most common symptoms and crops affected: Onion thrips are active already, and if they have been a problem for you in years past it is time to start scouting for them. They are very tiny and easily overlooked until the onion plants start showing leaves that
Pest: Garden Springtails (Collembolla) Pest/disease identification and lifecycle, most common symptoms and crops affected: Springtails are a very diverse group of soil dwelling arthropods, that largely feed on decaying organic matter. As such, most springtail species are playing a beneficial role in a healthy soil’s food web. That knowledge may be of little relief, however,
Pest/disease identification and lifecycle, most common symptoms and crops affected: Plants that have not yet been hardened off thoroughly, or can’t get all the water they need, can suffer from something akin to a sunburn. The damage usually shows up first as a bleaching of exposed leaf surfaces, typically higher up on the plant, though
Pests: Crucifer Flea Beetle (Phyllotreta cruciferae) and Striped Flea Beetle (Phyllotreta striolata) Pest/disease identification and lifecycle, most common symptoms and crops affected: Crucifer and striped flea beetles feed on brassica crops as well as weeds that are in the same family, such as yellow rocket or wild mustard. Larvae feed on the roots and flea
Pest: Asparagus Beetle, Common (Crioceris asparigi) and Spotted (Crioceris duodecimpunctata) Pest identification and lifecycle, most common symptoms and crops affected: Common Asparagus Beetle (Crioceris asparigi) Blue-black, shiny, smooth and about 6 to 9 millimeters (1/4 inch) long, with three large yellow, squarish spots with red margins along each wing cover. Eggs are black, laid standing on
Pest: Edema Pest/disease identification and lifecycle, most common symptoms and crops affected: Edema usually shows up on tomato seedlings when they have been waiting through lots of cloudy cold days. It is also a common problem in plants in the cabbage family, and some house plants. Blisters or bumps appear on the surface of the
By Jonathan Mitschele In late July 2017 I discovered that my potato plants were not doing well. Leaves were yellowing and the plants were not growing as expected. Suspecting some sort of blight, I sent photos to Eric Sideman at MOFGA. He thought the problem was potato leafhoppers and referred me to a MOFGA pest
by Eric Sideman, PhDMOFGA’s Organic Crop Specialist Emeritus Introduction Similar to any organic crop production, producing strawberries organically entails a system approach to the whole farm. Many of the practices are the same in organic and conventional strawberry systems, but the fundamental approach to soil husbandry and pest management may be quite different. Successful organic
By Will Bonsall Note: Certified organic producers should check with their certifier before using any pesticides (including pest repellents) not mentioned on their organic farm plan. When using pesticides on crops grown commercially and intended for human consumption, an applicator’s license may be required. See https://www.maine.gov/dacf/php/pesticides/applicators/licensing.html. One of the main problems with growing the foods we
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