Crop Chemicals
The University of Guelph Ridgetown Campus recently released a number of new tables outlining fungicide efficacy for management of diseases in field tomatoes. 
Published in Diseases
The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE registrations for Presidio Fungicide for control of downy mildew on field and greenhouse basil and downy mildew of hops, and suppression of Phytophthora blight and pod rot and downy mildew on edible-podded beans in Canada. Presidio Fungicide was already labeled for use on a number of crops in Canada for control of several diseases.
Published in Diseases
It's a few months before bloom, but not too soon to be thinking about your chemical thinning strategies for 2019. There are some new products being researched that will hopefully become available to Canadian apples producers in the next few years.
Published in Fruit
In 2018, MS Gregson introduced a line of electrostatic sprayers (the Ecostatik) in Canada. While electrostatic technology has been used in agriculture since the 1980’s, this is the first time ground rigs have been so readily available to Ontario (possibly Canadian) growers.
Published in Spraying
The Agricultural Retailers Association (ARA) named Simplot Grower Solutions its 2018 Retailer of the Year.
Published in News
At its annual meeting in mid-November, the Ontario Corn Committee (OCC) spent much time discussing how best to respond to the current Gibberella ear rot outbreak that is resulting in the high levels of DON in corn this year.
Published in News
The corn salvage benefit for 2018 covers cases where DON (deoxynivalenol) levels in harvested corn exceed five parts per million (5 ppm). The benefit is designed to help producers cover costs to harvest and then market, use as feed or find an alternative use for damaged corn.
Published in Vegetables
The Agriculture and Agri-Food (AAFC) website is undergoing a renovation, and as a result the Pest Management Centre pages have been relocated to join the AAFC Research and Development Centres’ web pages. Along with this migration, the pest management centre homepage has been updated.
Published in Insects
New for 2019, BASF will introduce Serifel, an innovative, new fungicide with three modes of action to target powdery mildew and botrytis in grapes.
Published in Diseases
Syngenta Canada Inc. is pleased to announce the registration of Vibrance Ultra Potato as a new seed piece treatment for the suppression of pink rot and control of key seed- and soil‑borne diseases, including late blight.
Published in Diseases
Wageningen University & Research uses computer models to develop sustainable management strategies in the control of potato late blight, caused by Phytophthora infestans.

At the moment, large amounts of fungicides are used to control the disease. Organic farmers face an additional challenge because they are not allowed to use these chemicals. From an environmental point of view, these chemicals are also very polluting and therefore sustainable late blight management strategies are needed.

In Ph.D research study, computer models have been used to investigate how the disease spreads in an agricultural landscape and to analyze the effect of growing resistant varieties.

In Francine Pacilly's Ph.D. research, computer models have been used to investigate how the disease spreads in an agricultural landscape and to analyze the effect of growing resistant varieties.

These models show that an increase in the number of potato fields with resistant varieties increases the risk that aggressive strains of the pathogen emerge and spread.

This risk decreases if more than 50 per cent of the acreage of potato fields consists of resistant varieties. So, many resistant potatoes are not yet available so alertness is required. Various strategies are available to limit the consequences of a breakthrough, for example the spatial allocation of crops in combination with the use of small amounts of fungicides to limit the environmental impact.

In addition, growing resistant varieties with multiple resistance genes reduces the risk of susceptibility to the potato disease. It is expected that these type of varieties will enter the market soon.

Last year workshops with farmers were organized to increase awareness about the risk of resistance breakdown. In these workshops, the computer model was used to present several model scenarios to conventional and organic farmers. These workshops were very useful for showing farmers how the disease spreads in a landscape over time and space and for showing the effects in the long term.

After the workshop farmers agreed that resistance management is important to increase the durability of resistant varieties and that collaborative action is needed. The workshops were useful to bring farmers together and to discuss strategies in the control of late blight to reduce the impact of the disease.

In order to develop sustainable strategies it is important to consider all factors that influence late blight control such as the disease, the crop and control strategies of farmers. This research is part of the Complex Adaptive Systems program of Wageningen University where the goal is to identify these factors and to analyze how they influence each other. Potato late blight as one system brings a future without chemical control closer.
Published in Diseases
Canada’s Pest Management Regulatory Agency [PMRA] recently announced it is restarting the review process for mancozeb.

All current final decisions and proposals regarding MRLs for mancozeb products will be removed and a new proposal for consultation will be posted.

The PMRA released its 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. Representatives from the Ontario Fruit and Vegetable Growers Association and the Canadian Horticulture Council met with PMRA to voice their concerns about the loss of these products and a new review process was agreed upon.

The decision for metiram could not be reversed for legal reasons. This means that as of June 2020, Polyram cannot be used on any crop except potatoes and the label will reflect that change.
Published in Diseases
Five new fertilizer-compatible products are expected to be available from Vive Crop Protection for U.S. corn, sugarbeet and potato growers in 2019. Each product includes a trusted active ingredient that has been improved with the patented Vive Allosperse Delivery System.

AZteroid FC 3.3 is a high-concentration, fertilizer-compatible fungicide that improves plant health, yield and quality of key field crops, including potatoes, sugarbeets and corn. AZteroid FC 3.3 controls seed and seedling diseases caused by Rhizoctonia solani and certain Pythium spp. It contains azoxystrobin, the same active ingredient as Quadris.

Bifender FC 3.1 controls corn rootworm, wireworm and other soil-borne pests in corn, potatoes and other rotational crops. Bifender FC 3.1 has a new high-concentration, fertilizer-compatible formulation and contains bifenthrin (same as Capture LFR).

TalaxTM FC fungicide provides systemic control of pythium and phytophthora, similar to Ridomil Gold SL but in a fertilizer-compatible formulation. Talax FC contains metalaxyl and helps potatoes and other crops thrive right from the start, resulting in improved yield and quality.

MidacTM FC systemic insecticide is a fertilizer-compatible imidacloprid formulation that controls below-ground and above-ground pests in potatoes and sugarbeets. It provides the same long-lasting protection of Admire PRO but with the convenience of being tank-mix compatible with fertilizers, micronutrients and other crop inputs.

AverlandTM FC insecticide is a fertilizer-compatible abamectin formulation that controls nematodes in corn. It also controls potato psyllid, spider mites, Colorado potato beetle and leaf miners in potatoes. In-furrow application trials for nematode control in a wide range of crops are under way.

All of these fertilizer-compatible products use the Vive Allosperse Delivery System - the first nanotechnology registered for U.S. crop protection. Products containing Allosperse are the best mixing products on the market, whether they are used with each other, liquid fertilizer, other crop protection products, micronutrients or just water.

Brent Petersen, president of Cropwise Research LLC, performed trials on behalf of Vive Crop Protection to test mixability of the company’s products. During spring 2018, he mixed all five of the new products together with liquid fertilizer and observed, “We didn’t see any separation or settling out. It was nice to see because we often see products that aren’t compatible with other products, and especially with liquid fertilizer.”

EPA registration is pending for Talax FC, Midac FC and Averland FC and the new formulations of AZteroid and Bifender.
Published in Weeds
The Pest Management Regulatory Agency recently announced that it will be cancelling the use of the group M3 chemicals mancozeb and metiram in a wide range of crops, including field tomatoes.

In 2020 products like Manzate, Penncozeb, Dithane and Polyram will no longer be available for sale and in 2021 use will be banned completely. This will ultimately have an effect on how we control diseases, including anthracnose, early blight and, most importantly, late blight. Although mancozeb is currently an important player in fungicide programs, tomato growers do have other options available.

For best control it is always good to start with preventative or protectant fungicides once environmental conditions are conducive to disease development and before symptoms appear. | READ MORE
Published in Diseases
The Pest Management Regulatory Agency (PMRA) recently announced the approval of minor use label expansion registrations for Venture L Herbicide for control of labeled weeds on rhubarb, the bulb onion subgroup 3-07A, green onions, caneberries subgroup 13-07A and lettuce in Canada.

Venture L Herbicide was already labeled for use on a number of crops in Canada for control of several weeds.

These minor use projects were submitted by Agriculture & Agri-Food Canada, Pest Management Centre (AAFC-PMC) as a result of minor use priorities established by growers and extension personnel. | READ MORE
Published in Weeds
The Pest Management Regulatory Agency (PMRA) recently announced the approval of minor use label expansion registrations for Entrust and Success insecticides for control of cabbage maggot on Brassica leafy greens crop subgroup 4-13B and Brassica head and stem vegetables, crop group 5-13 in Canada.

Entrust and Success insecticides were already labeled for use on a wide variety of crops in Canada for control of several insects.

These minor use projects were submitted by Quebec as a result of minor use priorities established by growers and extension personnel. | READ MORE
Published in Insects
If you were going to tank mix chemical pesticides, you would of course read the label to check for compatibility before mixing products.

The same concept applies when using living organisms for pest control. Whether you are using parasitoid wasps, predatory mites, microorganisms, or nematodes, you need to know whether your biocontrols are compatible with each other and any other pest management products you plan to use.

For example, a biocontrol fungus might be killed if you tank mix it with (or apply it just before) a chemical fungicide. Insecticides (whether or not they are biological) could be harmful to natural enemy insects and mites. Even some beneficial insects are not compatible with each other because they may eat each other instead of (or in addition to) the pest. | READ MORE 
Published in Insects
Corteva Agriscience, Agriculture Division of DowDuPont, recently announced that the Pest Management Regulatory Agency (PMRA) in Canada has granted Dow AgroSciences upgraded approval for Closer Insecticide use to actively control Woolly apple aphid in pome fruit crops.

“Canadian apple growers who have used Closer in the past know of its exceptional speed and ability to knockdown aphids. This upgraded designation reinforces the quality and efficacy of Closer and we are pleased that the PMRA has responded to the ongoing need to control insect infestation,” explains Tyler Groeneveld, category leader, Horticulture with Corteva Agriscience.

This approval is significant as it gives growers greater access to a highly effective product that combats sap feeding insects at various stages of growth and outbreak. Insects such as Woolly apple aphid can cause extensive crop damage, ultimately impacting the quality and value of orchard crops.

Closer Insecticide, powered by Isoclast active, is a revolutionary product ideal for control of both resistant and non-resistant pests, delivering the active ingredient sulfoxaflor, which is classified by the Insecticide Resistance Action Committee as the sole member of IRAC Subgroup 4C Sulfoximines. The active ingredient moves quickly through the plant and has excellent systemic and translaminar activity that controls insect pests both on contact and by ingestion. The results are fast knockdown and residual control of aphids and other sap feeding insects.

Closer is highly selective and has minimal impact on beneficial insects. The properties and overall spectrum of activity of Closer Insecticide makes it an excellent fit for treatment when outbreaks occur as well as part of Integrated Pest Management Programs (IPM) to minimize flare-ups.
Published in Insects
A potato variety genetically engineered to resist potato blight can help reduce the use of chemical fungicides by up to 90 per cent, according to a new study - drastically reducing the environmental impact of potato farming.

Potato blight, caused by a water mould called Phytophthora infestans, can rapidly obliterate potato crops, and is one of the biggest problems in potato farming. 

Working together, scientists from Wageningen University & Research and Teagasc, the Irish Agriculture and Food Development Authority, have developed a two-pronged approach: a genetically modified potato, along with a new pest management strategy, that combine for healthy crops with minimal fungicide use. | READ MORE
Published in Insects
Corteva Agriscience, Agriculture Division of DowDuPont, recently announced that the Pest Management Regulatory Agency (PMRA) in Canada has granted Dow AgroSciences new label registration for Closer Insecticide for the control of Campylomma verbasci (mullein bug) effective immediately.

This announcement is significant as it means Canadian apple growers now have full access to a highly effective product for pest control.

“Closer has always been known for its targeted and quick control of aphids and other orchard pests. With this registration, growers can have even greater confidence in the quality and efficacy of Closer on apples when outbreaks occur as well as for resistance management,” explains Tyler Groeneveld, category leader, Horticulture with Corteva Agriscience.

Closer Insecticide, powered by Isoclast active, is a revolutionary product ideal for control of both resistant and non-resistant pests, delivering the active ingredient sulfoxaflor, which is classified by the Insecticide Resistance Action Committee as the sole member of IRAC Subgroup 4C Sulfoximines.

The active ingredient moves quickly through the plant to deliver excellent systemic and translaminar activity. Pests are controlled both through contact and by ingestion, resulting in fast knockdown and residual control.

Closer is highly selective and has minimal impact on beneficial insects. The properties and overall spectrum of activity of Closer Insecticide makes it an excellent fit for treatment when outbreaks occur as well as part of Integrated Pest Management Programs (IPM) to minimize flare-ups. Further information can be found at: www.corteva.com.
Published in Insects
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