May 11, 2016

Insect update: Winds arrive from the south

Wind trajectory maps from Agriculture and Agri-Food Canada (AAFC) indicate that winds have arrived from southern areas where diamondback moths and aster leafhoppers overwinter. Naicam, Regina and Tisdale in Saskatchewan and Lethbridge and Beiseker in Alberta had the first occurrences of Reverse Trajectories this week that originated from the southwestern U.S. and/or Mexico. This does not mean the insects have arrived, just that the winds that could possibly carry them have arrived.

Reverse wind trajectories indicate the arrival of winds originating in Mexico and the southwest U.S. Source: Owen Olfert, AAFC
Reverse wind trajectories indicate the arrival of winds originating in Mexico and the southwest U.S. Source: Owen Olfert, AAFC

The Prairie Pest Monitoring Network’s blog keeps regular tabs on this and other important insect updates.

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