Tag Archives: gypsy moth

April Snowstorms Bring May Flowers

There may still be snow in the bush but at long last, its been warm enough to support bloom on several early flowering plants.  It looks like the warming trend will continue, according to the 7 day weather forecasts.  After … Continue reading

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Leps are languishing…. time for biocontrol

                Seeing holes in leaves on deciduous trees?  This majestic sugar maple was showing interveinal holes and closer inspection revealed fall cankerworm (Alsophila pometaria) larvae on the leaf undersides.  Larvae are pale green (although you’ll … Continue reading

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Early Spruce Sawfly Damage Can Look Like Needle Burn

Take a quick scan of the new growth on spruce, especially Colorado spruce (Picea pungens).  Look for straw-like needles that are withering….and the disappearance of needles all together.  This is very typical damage of Yellow Headed Spruce Sawfly (Pikonema alaskensis).

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A Few Early Season Pests

Now is a great time to scout for overwintering pests in the landscape and nursery.  There is still an opportunity to apply cultural management methods to reduce pest incidence on woody plants. For those of you in areas where bagworm … Continue reading

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Spruce Sawfly is Doing It’s Thing

Take a quick scan of the new growth on spruce, especially Colorado spruce (Picea pungens).  Look for straw-like needles that are withering….and the disappearance of needles all together.  This is very typical damage of Yellow Headed Spruce Sawfly (Pikonema alaskensis).

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Those Darling Buds of May, 2015

  We’ve got a warm week ahead of us and for those of us in the green industry, we  are all wishing that spring would slow down a little bit.  Buds are bursting like crazy, making bloom periods as well as … Continue reading

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Yellow Headed Spruce Sawfly and Gypsy Moth Hiding & Feasting

In the north Toronto area, there is quite a problem with yellow headed spruce sawfly.  I blogged about their hatch last week and already they have grown to 10-15 mm long! Take a quick scan of the new growth on … Continue reading

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