Photo of the Week
Cute little Pale Green Weevils (Polydrusus impressifrons) can be found crawling everywhere right now. Fear not, their feeding is of little consequence :)
Category Archives: Weather
EVERGREENS: Winter Desiccation or a Pest Issue?
I had a request for an article on diagnosing winter desiccation versus pest and disease issues on evergreens. I find diagnosing diseases of evergreens versus physiological and abiotic disorders to be tricky. But here is the decision-making process that I … Continue reading
Spruce needle drop in the Landscape?
It seems to be one of the most common complaints this spring: my spruce tree is turning brown and dropping needles!!!!
Posted in IPM, Weather
Tagged Allgreen Tree Service, Jen Llewellyn, spruce tree decline, spruce tree needle drop
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What’s up with that duck?
Each March the Canada geese herald in the beginning of spring with the honking broadcasts and displays of male prowess on lakes and storm water collection ponds. The real sign of spring (for me) is when they start standing on … Continue reading
Posted in Insects, Weather
Tagged dormant oil, Jen Llewellyn, nursery tracker, omafra publication 840, omafra publication 841
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Have you seen the weather forecast?
Environment Canada is calling for much more seasonable temperatures for next week. Daytime high’s will be in the balmy range of -3 to -7 C in many areas! Time to break out the t-shirt and shorts! I am predicting a HUGE positive … Continue reading
Old Man Winter is here
Weather experts across several regions are predicting a long, cold winter with below-average temperatures for much of Ontario. Last winter we saw an unprecedented level of rodent and deer feeding on nursery crops. Many of us noticed large populations of voles, … Continue reading
Good News: The Days are Getting Longer!
But dang, it’s cold out there! What’s up with the weather? Evelyn Browning Garriss, author of the Browning Newsletter and well-known “Weather Whisperer” will tell you, it’s because of the volcanic eruptions in the arctic. Yes, since 2011, there have … Continue reading
Posted in Weather
Tagged evelyn browning garriss, Jen Llewellyn, polar vortex, winter 2015 prediction
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Winter Injury Still Rearing It’s Ugly Head
Believe it or not (and maybe you don’t believe it), but many horticulturalists believe that the recent dieback on trees and shrubs in the landscape and nursery can be at least partially explained by winter injury. By winter injury … Continue reading
Posted in Arboriculture, IPM, landscape, Nursery Production, Weather
Tagged Jen Llewellyn, winter injury to landscape trees
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Funky Dissected Leaves on Weeping Eur Beech?
I have had a lot of questions about strange shapes of leaves on weeping European beech (Fagus sylvatica ‘Pendula’) this week from landscapers, arborists, garden centres and field production nursery growers. What we are seeing is slight chlorosis (yellowing) and … Continue reading
Lot’s and lot’s of spots (May 30/14)
Until recently, we’ve been experiencing a fairly cool, wet spring with some pretty significant temperature shifts over a short period of time. The differences in day and night temperatures can be very damaging to plant tissue and we have seen … Continue reading
Posted in Diseases, Nursery Production, Weather
Tagged Jen Llewellyn, low temperature injury, Pseudomonas syringae
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March 24, 2014. It Could Be Worse
It’s a sure sign of SPRING! Just last week the Canada Geese started landing on rooftops in the subdivisions and heralded the spring of 2014 in with a great amount of honking! And then, they stopped. I’m embarrassed to write … Continue reading
Posted in Arboriculture, landscape, Nursery Production, Uncategorized, Weather
Tagged Emerald Ash Borer, Jen Llewellyn, tree hardiness, winter injury
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