Originally posted on onspecialtycrops:

Pesticide Registration in Canada and Ontario

By Allison Moorman, OMAFRA-University of Guelph USEL Student

A pesticide, or pest control product, is a substance (insecticide, fungicide, or herbicide) used to prevent, destroy or repel pest organisms. All products applied to a plant for the purpose of controlling a pest in Canada, whether conventional or organic, must be registered federally by the Pest Management Regulatory Agency (PMRA). The PMRA is an agency of Health Canada, which registers each pesticide under the federal Pest Control Products Act and re-evaluates previously registered pesticides to determine acceptability for future use. When registering a pesticide for use in Canada, the PMRA evaluates many factors including the potential risk to human and animal health, the impact on the environment and the usefulness of the pesticide to the agricultural industry. These regulations are designed to ensure pest control products are used with minimal risks to worker health, food…

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Janice LeBoeuf:

This week! This could be of interest to those interested in high tunnel vegetable production and organic production methods.

Originally posted on onspecialtycrops:

You’re invited to attend the University of Guelph’s Centre for Urban Organic Farming open house on Wednesday, September 30, 2015, from 1-4 pm.

Learn about ongoing high tunnel and field research projects with horticultural crops and specialty crops including cherry tomato, pea shoots and pods, bitter melon and edible chrysanthemum.


The day will include discussions on high tunnel construction, project set-up, initial experiences of organic vegetable crops grown in high tunnels and field production, understanding environmental variables when growing organic crops in high tunnels versus field production, site tours, and more!

Date: 30 September, 2015
Time: 1-4 pm
Site Tours:University of Guelph Centre for Urban Organic Farming, College Ave. East & Dundas Lane, Guelph, Ontario.
Presentations: Cutten Fields, 190 College Ave East, Gueph, Ontario.

12:30:             Registration
1:00 – 1:45:    Site Tours (every 15 mins, 3 tours available starting at 1pm)

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Originally posted on onspecialtycrops:

Ontario tobacco growers are advised that the fungicide Actigard 50 WG will no longer be available for sale in Canada after the 2015 season.  In Canada, Actigard 50 WG (active ingredient acibenzolar-S-methyl) is registered for the control of blue mold in tobacco fields, as well as the suppression of certain bacterial diseases of tomato.   This decision was made by the registrant, Syngenta Canada, as a result of declining sales of Actigard in Canada over the last several years.   Syngenta Canada will continue to maintain the Canadian registration of Actigard, so any product purchased this year can still be used on tobacco next year, however after this field season Canadian growers will not be able to purchase new material.  Syngenta suggests that Actigard be used within three years of purchase.

Aliette WDG (fosetyl-Al) and Quadris Flowable (azoxystrobin) are also registered for the control of blue mold in Ontario tobacco fields.

Actigard 50…

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Hannah Fraser, OMAFRA – Vineland

BMSB AdultBrown marmorated stink bug (BMSB) numbers have been down this year, although numbers trapped at our urban hot spot increased dramatically over the warm spell of the last two weeks. Almost all individuals are adults now, although we continue to find the odd late instar nymph (plus a few really early instars that won’t have enough time to complete their development). Many of these adults are looking for places to overwinter, but some are still out there in the landscape and potentially in your crop. Late season crops are at risk from feeding injury by this insect. Make sure to familiarize yourself with the pest and signs of damage. Continue Reading »

Off-flavour in tomatoes

Do you love the flavour of cis-3-hexenal? It’s so delicious combined with acid, sugar, and the right balance of other volatile compounds, isn’t it? I like mine with a bit of 2-isobutylthiazole.

Tomato flavour is a complicated equation. There isn’t one “tomato flavour” chemical that gives the tomato its distinctive taste and aroma. For that perfect tomato, the right balance of sugars, organic acids, and somewhere between 30 and 400 volatile compounds need to be in place. Otherwise, you might complain the tomato is tasteless, bland, sour, tastes metallic or has a “chemical” flavour. Continue Reading »

Originally posted on onspecialtycrops:

The Ministry of Agriculture, Food and Rural Affairs (OMAFRA) developed a series of tutorials to help you use the Agricultural Information Atlas (AIA). The tutorials provide step-by-step instructions on a range of topics – from the basics of navigating through the application to creating specific maps for submissions to OMAFRA.


With the AIA, you can:

·         create custom maps for your farm
·         create farm sketches for nutrient management and tile drainage planning
·         find agricultural information for Ontario

You can find the 13 tutorials on the OMAFRA website. To access the AIA, go to the AgMaps Geographic Information Portal at ontario.ca/agmaps.

For more information, contact the Agricultural Information Contact Centre at 1-877-424-1300 or ag.info.omafra@ontario.ca.

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Tomato late blight has now been confirmed in Niagara Region, Bruce County, Wellington County, Chatham-Kent, Essex, and Elgin Counties. Credible reports have been received from Norfolk County, as well. It is widespread across the Great Lakes region at this point.

OMAFRA has been collecting samples of tomato late blight for a research project by L. Kawchuk, Agriculture and Agri-Food Canada, Lethbridge, Alberta. He is able to isolate the pathogen (Phytophthora infestans) from the samples to look at their fungicide sensitivity and determine their genotype. Most of the samples in the Great Lakes region the last couple of years have been the genotype known as US-23. It becomes a concern when there is more than one genotype in an area and when new genotypes are found (the higher the number, the more recent the genotype has been identified). New genotypes, for example, could be more aggressive and better adapted to our growing conditions. Continue Reading »


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