This is a cabbage butterfly caterpillar feeding on an Arabidopsis plant where, on an adjacent leaf, a piece of reflective tape helps record vibrations.

Plants can hear the difference

They respond differently to vibrations caused by 
chewing insects than to wind

University of Missouri-Columbia – Researchers at the University of Missouri-Columbia have found plants can not only tell the difference between the sound waves caused by insects chewing and wind but they respond with more defences. ‘We found that feeding vibrations signal changes in the plant cells’ metabolism, creating more defensive chemicals that can repel attacks

It’s a “boy!”

“Come right away!” I called to my husband at 5 a.m. Hearing the urgency in my voice, he scrambled into his clothes and came to join me. Together we were about to witness a miracle. Two weeks before, a neighbour had come to ask me for a large jar. “What for?” I asked. “You’ll see!”


On the lookout for blackleg and clubroot

Most Manitoba canola producers weren’t tallying up the list of production problems they faced last year, but Canola Council of Canada regional agronomist Kristen Phillips did. There were 23 to be exact, everything from excess moisture, late seeding, drought, frost, stressed plants, disease and insects. The cool, wet spring and a hot, dry summer led

Try A Variety Of Plants And Create A Butterfly Garden

I’m looking forward to when the butterflies – sometimes called “flying flowers” – visit yards and fields once again. One of the most interesting of these is the monarch butterfly, the unusual butterfly that actually migrates, flying all the way from Manitoba to high mountain forests in central Mexico, a distance of nearly 5,000 kilometres.



Butterflies: A Reminder Of Biodiversity’s Role

Are nettles a thing of beauty? Every spr ing my mother bends over her flower garden yanking any greenery even slightly related to nettles. With a toss over her shoulder, these withering plants do not even get a parting glance. In her eyes these plants are downright ugly, even worse than quack grass. Who finds


Cankerworms Develop A Taste For Canola

An insect pest with no appetite for canola has found its way into some southern Manitoba canola crops thanks to recent stormy weather. In his weekly insect and disease update, provincial entomologist John Gavloski said cankerworms had been reported feeding in a canola field near Winkler. He noted that the pests don’t normally feed on

Control Action Against Gypsy Moth Considered

“A notorious defoliator of broad-leaved trees.” A new insect pest has arrived in Manitoba and the government is acting fast to eradicate it before it gains a foothold. Manitoba Conservation hopes this spring to conduct aerial spraying against the gypsy moth in two areas near Winnipeg where it has been found. The province wants swift


Gypsy Moth Considered A Threat To River Trees

Manitoba Conservation will hold public open house meetings to inform the public of options available for containing further spread of the European gypsy moth, which has been identified in areas of St. Germain and La Salle. The European gypsy moth was accidentally introduced to the United States in 1869. It spread throughout the northeast United