Brown marmorated stink bug (BMSB) update, 2018

Brown marmorated stink bug (BMSB), Halyomorpha halys Stål, is an invasive pest native to East Asia. First identified in Pennsylvania in 2001, it has now been detected in 44 states and 3 provinces (Ontario, Quebec and British Columbia), and is of economic importance wherever it is found. There are more than 170 North American plant hosts, including broad spectrum of important fruit (e.g., apples, tender fruits and grapes), vegetable and field crops, as well as landscape trees and shrubs. Many of these crops are important agricultural commodities in Ontario. BMSB survey programs were initiated in Ontario in 2013 and as of July, 2018 BMSB has been detected in 24 counties.   Continue reading

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SWD Update August 17

This post contains a summary of trap counts for the week of August 13. The traps are shifting from berry crops to later stone fruit and early grape varieties. Continue reading

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Label expansion for Delegate in Stone Fruit

Delegate insecticide is now labeled for suppression of peach tree borer and lesser peach tree borer in all stone fruit.  Continue reading

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PMRA Evaluation of mancozeb and metiram products

PMRA released their evaluation for mancozeb and metiram products in June, 2018. According to that decision, all uses of products containing mancozeb (Manzate, Penncozeb, Dithane, Ridomil Gold MZ and Gavel) and metiram (Polyram) were to be cancelled with the exception of foliar applications to potatoes. Continue reading

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Weeds to Watch: Invasive Pigweeds – Waterhemp and Palmer Amaranth

Kristen Obeid, OMAFRA Weed Management Specialist – Horticulture

Dave Bilyea, Weed Management – Horticulture, University of Guelph, Ridgetown Campus

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We want your MALB (alive)!

As part of the study on mitigation of multi-coloured Asian ladybeetle in vineyards, we require a large number of beetles.  If you find them in your vineyard, orchard, berry patch or even in your garden, give us a call and we will come out and collect!  Look for the distinctive “M” behind the head to confirm that it’s MALB (see below).   Email wendy.mcfadden-smith@ontario.ca or text 905-932-8965.

MALB adult

 

 

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Grapevine viruses – Symptoms and Testing

Symptoms of diseases caused grapevine leafroll-associated-3 (GLRaV-3) and grapevine red blotch virus (GRBV) have become apparent in infected vines in the past couple weeks. Continue reading

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