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Life stages: eggs, larvae, pupae, adult moths.Female moths lay eggs from August to September on grassy weeds in and around potato fields. These overwintering eggs begin to hatch in late April or early May, and the small…
The foxglove aphid is seldom abundant in Ontario.IdentificationWingless forms. They have a pear-shaped body with prominent, almost parallel, straight-sided antennal tubercles. The body is light yellow-green to dark green or brownish, shiny, usually with darker areas around…
The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) recently posted two Regulatory Status Review (RSR) responses under the revised biotechnology regulations at 7 CFR part 340. According to a news release, APHIS reviewed…
In Ontario, the potato aphid is the first to infest the crop in the growing season. It is also the largest aphid that infests potatoes in the province. This aphid is usually found on the middle and…
The green peach aphid is the most important vector of potato viruses.Although it prefers to feed on the lower leaves of potato plants, the green peach aphid will feed on the top leaves if populations are high.…
Life stages: eggs, wingless forms, winged forms. Aphids are small, soft-bodied, sucking insects 1–4 mm in length. Aphids affect the potato crop directly by feeding and indirectly by transmitting viruses that cause important diseases. The most common…
The Teton Russet potato variety has now been added to the list used for McDonald’s World Famous Fries®, according to a news release issued by the Potato Variety Management Institute (PVMI). Teton Russet is a product of a 14-year…
Life stages: eggs, nymphs, adults.The tarnished plant bug is a common pest of many vegetable and fruit crops. Adults overwinter in protected areas: in debris found in fencerows, in woods, in ditches or in fields of forage…
Jacob Beaton reaped a bounty of Ozette potatoes from his Tea Creek Farm in Kitwanga in northwest B.C. last week – but they aren’t the kind of potatoes you’d find at the supermarket. He says they are one of the…
Life stages: eggs, nymphs and adults.Aster leafhoppers infesting potatoes in Ontario originate from two sources: overwintering eggs laid in winter cereals and adults carried from the southern United States by upper-level winds. Because the aster leafhopper does…
Life stages: eggs, nymphs, adults. The potato leafhopper does not overwinter in Ontario. It is carried by upper-level winds from the United States and can arrive in Ontario as early as May. Depending on weather conditions, 2–4…
Gordon MP Richard Thomson has continued his campaign to restore access to the export markets in the EU and Northern Ireland for Scottish seed potatoes. In a press release, Thomson’s office points out that prior to Brexit,…
