Author Archives: Kristy Grigg-McGuffin

Apple Update: June 21, 2017

Crop Stages In Southwestern Ontario, apple fruitlets are 20-35 mm in diameter, terminal buds are starting to set in older trees in Essex County In Grey County and east of Toronto, apple fruitlets are at 15-20 mm in diameter

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Apple Update: June 14, 2017

In this update: crop stage thinning irrigation diseases: fire blight, scab, powdery mildew, leaf spots insects: codling moth, obliquebanded leafroller, dogwood borer, San Jose scale, leafcurling midge, plum curculio, brown marmorated stink bug Ontario Apple Orchard Tour

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Register Now! Ontario Apple Orchard Tour

Space is filling up fast! Don’t miss out on a great learning and networking opportunity.

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Apple Update: June 8, 2017

In this update: crop stages thinners disease: fire blight, scab, blister spot, sudden apple decline insect: codling moth, San Jose scale, woolly apple aphid, leafcurling midge, dogwood borer Crop Stages

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Apple Update: May 30, 2017

Crop Stages In Southwestern Ontario apples are at 3 to 12 mm fruitlet size In Grey County and east of Toronto, apple blossoms are at full bloom to petal fall Production Fruitlet thinning applications have begun in Southwestern Ontario and … Continue reading

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Secondary Blossoms Are a Fire Blight Risk

Michael Celetti, Plant Pathologist – Horticulture Crops, OMAFRA Many apple growing regions are reporting a prolonged period of secondary or ‘rat tail’ blossoms this year. Trees with late secondary blossoms (Figure 1) are at risk of becoming infected with the … Continue reading

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Apple Update: May 24, 2017

In this update: Crop Stages Production Fire Blight Apple Scab and Powdery Mildew Summer Diseases Insects Crop Stages In Southwestern Ontario, apples are at king bloom petal fall to 10 mm fruitlet size. In Grey County and east of Toronto, … Continue reading

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