Over the past few years there have been a number of new fungicide registrations for cucurbit crops in Canada. Each one has its own particular strengths; however it is important to find the right fit within the fungicide program.

Depending on the disease, the actual infection rates greatly between the different cucurbit crops.  For example, cucumbers are highly susceptible to downy mildew while pumpkins typically have a much greater level of tolerance to this disease. The more significant diseases for each cucurbit type are listed below (Table 1. Significant Cucurbit Diseases by Crop). When planning a preventative fungicide program, it is useful to keep these diseases in mind. Continue Reading »


Thinking about trying some different cover crops after wheat this year?

Here is an opportunity to see cover crop plots in the spring. Have a look at soil cover, soil structure and the impact of cover crops on water infiltration. Help us to count earthworms.

Spring considerations for cover crops: What survived? How to control? Planting into cover crop residues?


Tues April 15, 2014 at 10 am
Location: Henry Denotter, NE corner of the McCain Side Road and Road 6W (north of Kingsville) Map
Features: St Clair Region Cover crop project with mixes of oats, radish, clover and a 6 way mix

Wed April 16, 2014 at 10 am
Location: Blake Vince, 22641 Merlin Road (Fletcher) Map
Features: Blake’s Multi mix, simple cover crop mixes, Soil pit to look at roots

Thurs April 17, 2014 at 10 am
Location: Dave Sherman, 1 Victoria Road just south of tracks/across from Westover (Thamesville) Map
Features: St Clair Region Cover crop project with mixes of oats, radish, clover and a 6 way mix

Coffee, juice and donuts provided on sites. Event goes rain or shine.

Presented by OMAF and MRA, St. Clair Region Soil and Crop Improvement Association and the host farmers.

Event Poster, Cover Crop Coffee Break 2014

For more information contact:

Hannah Fraser, Ontario Ministry of Agriculture and Food, and Ministry of Rural Affairs, Tara Gariepy, Agriculture and Agri-Food Canada, and Cynthia Scott-Dupree, University of Guelph

Figure 1: BMSB adult

Figure 1: BMSB adult

During surveys conducted in 2012/2013*, the invasive brown marmorated stink bug (BMSB) was confirmed as established in the City of Hamilton and in Newboro (Leeds and Grenville County), ON.  By “established”, we mean both adults and immature life stages have been identified at these locations, indicating there is a reproducing population.  In both cases, finds of adults (Figure 1) and nymphs (Figure 2) came following at least two years of confirmed homeowner reports in the area.  In addition, we have also trapped BMSB adults at farms near Cedar Springs and Waterdown.  Although BMSB was not identified in the crops at either location, there were multiple adults captured over several weeks, indicating the pest is probably established nearby (likely at low population densities).  In the case of Cedar Springs, an adult was found at a homeowner site (indoors) earlier in the year, and of course, Waterdown is very close to known areas of infestation in Hamilton. Continue Reading »

Excerpts taken from ONvegetables in the Grower, April 2014. A full pdf version of this article is available at 2014_Infosheet_Phytophthora-in-irrigation-water

Phytophthora blight (Phytophthora capsici) is a serious and complicated disease of peppers and cucurbit crops. Under the appropriate environmental conditions, infections can quickly spread and completely destroy a crop in a matter of days.

Dr. Mary Hausbeck, Michigan State University, conducted an extensive study on the presence and potential impact of phytophthora in irrigation water sources. The study did indicate that irrigation from surface water is a potential source of phytophthora infection in cucurbit and pepper crops.

Figures 1-3. Peppers (L), Crown Rot (C), "Powdered Sugar" Spores (R)

Continue Reading »

SARE logoSARE (Sustainable Agriculture Research & Education) has made the presentations from the recent National Conference on Cover Crops and Soil Health available online, most  in pdf and video formats.

The conference included a General session, as well as session on Soil Health Principles, Innovative Ways to Seed Cover Crops, Selecting Cover Crops, Terminating Cover Crops for Maximum Benefits, Integrating No-Till or Strip Till With Cover Crops, Cover Crops as Part of an Overall Nutrient Management System, Environmental Impacts of Cover Crops, and Grazing Cover Crops and Benefits for Livestock Operations.

Here’s a sample, “Soil Health Principles” with Ray Archeluta, USDA-ARCS:

[Updated April 4, 2014 with Additional Resource - link to Identification Key to the Stink Bugs of Ontario]

Brown maStopBMSB.org logormorated stink bug has received a lot of attention in recent years and is now present in Ontario.  The StopBMSB.org website is an excellent resource for learning about the insect and what crops could be at risk as it expands in range and populations in Ontario.

A couple of highlights:

For more details on brown marmorated stink bug in Ontario, visit OMAF & MRA’s brown marmorated stink bug webpage. Continue Reading »

J. Chaput, OMAF/MRA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE registration for Prowl H2O Herbicide for control of labeled weeds on carrots in Canada. Prowl H2O Herbicide was already labeled for management of weeds on corn, soybeans, snap beans, adzuki beans, dry bulb and green onions, leeks and ornamentals in Canada. Continue Reading »


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