Individual ash trees can be treated with insecticide to protect against Emerald Ash Borer, but that’s not a solution for a woodlot.

Resistant trees found to resist ash borer

Science Notes: Gene editing could place resistance genes into ash species currently affected by EAB

Reading Time: 2 minutes An international team of scientists have identified candidate resistance genes that could protect ash trees from the Emerald Ash Borer (EAB), a deadly pest that is expected to kill billions of trees worldwide. In the new study, published in Nature Ecology & Evolution, researchers from Queen Mary University of London and the Royal Botanic Gardens, […] Read more

More ‘murder hornets’ found in B.C., Washington

Findings suggest some were able to overwinter

Reading Time: 3 minutes Reuters/Staff — Officials in British Columbia and Washington state have confirmed new sightings of the Asian giant hornet, dubbed the “murder hornet,” indicating the invasive, predatory insect survived the winter in the Vancouver area and U.S. Pacific Northwest. The stinging hornet, whose queens can grow as large as 2-1/2 inches in length, could potentially pose […] Read more

Wild boar are especially concerning because of their disease transmission potential.

Wild boar groups small so far in Ontario

There is concern about growing numbers of feral hogs due to their potential role in African swine fever transmission

Reading Time: 5 minutes Reported sightings of large groups of wild pigs – known as “sounders” – in Ontario are still limited to one or two instances in the Parry Sound/Magnetawan district, although there are reported sightings across much of the rest of the province.. Government and non-governmental scientists tracking the animals’ movements believe Ontario still has the opportunity […] Read more

The hairless stem of a waterhemp (right), compared to the hairy stem of the pigweed (left) is the easiest way to differentiate the two species.

Waterhemp difficult to distinguish from pigweed

Using herbicide programs effective on pigweed, should cover waterhemp too, so far

Reading Time: 3 minutes Waterhemp and pigweed species are difficult to differentiate, until they become larger – often past the ideal stage to control the waterhemp species. Mike Cowbrough, weed specialist with OMAFRA, says the herbicide programs identified by the University of Guelph Ridgetown campus, which are effective on waterhemp are equally effective on pigweed and other species. “There […] Read more