Tag: Pests

Cabbageworm

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

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Onion Thrips

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

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Garden Springtails

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,

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Sunscald/Windwhip

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

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Flea Beetles

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

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Asparagus Beetle

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

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Edema

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

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Pest Report – July 31, 2020

With the summer’s warm weather, growing degree days have accumulated more quickly then previously, and pests like european corn borer will be flying earlier than last year. I am not yet aware of powdery mildew showing up in cucurbits in Maine, but it is only a matter of time, and prevention at the first sight

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Pest Report – July 3, 2020

We’ve finally had relief from the prolonged dry weather, though extended periods of rain bring their own potential problems as prolonged leaf wetness is often a key factor in plant diseases taking hold. I haven’t had any questions about early blight yet, but I anticipate that people will be noticing it soon, if they haven’t

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