Weeds
May 24, 2017 Westminster, CO- A recent survey conducted by the Weed Science Society of America (WSSA) ranks Palmer amaranth as the most troublesome and difficult to control weed in 12 categories of broadleaf crops, fruits and vegetables, while common lambsquarters ranks as the weed most commonly found.

Almost 200 weed scientists across the U.S. and Canada participated in the 2016 survey, the second conducted by WSSA.

A 2015 baseline survey explored the most common and troublesome weeds in 26 different crops and noncrop areas.

The current survey ranks the following weeds as the most troublesome or the most common among broadleaf crops, fruits and vegetables:

TOP 10 WEEDS IN BROADLEAF CROPS, FRUITS & VEGETABLES

Most Troublesome
  1. Palmer amaranth
  2. Common lambsquarters
  3. Horseweed (marestail)
  4. Morningglory (ivyleaf, pitted, tall)
  5. Waterhemp (tall, common)
  6. Nutsedge (yellow, purple)
  7. Kochia
  8. Common ragweed
  9. Giant ragweed
  10. Nightshade (eastern black, hairy)
Most Common
  1. Common lambsquarters
  2. Foxtail (giant, green, yellow)
  3. Morningglory (ivyleaf, pitted, tall)
  4. Palmer amaranth
  5. Redroot pigweed
  6. Waterhemp (tall, common)
  7. Horseweed (marestail)
  8. Common ragweed
  9. Barnyardgrass
  10. Velvetleaf
Six weed species appeared on both the “most troublesome” and “most common” lists, including Palmer amaranth, common lambsquarters, horseweed, morningglory, waterhemp and common ragweed.

“Weed scientists have confirmed multiple cases of herbicide resistance in all six of these weed species, except for the morningglories where there is suspected resistance to glyphosate,” says Lee Van Wychen, Ph.D., science policy director for WSSA. “While each of these species has evolved traits that make them widespread and tough competitors in broadleaf crops like soybeans and cotton, there is no question that their difficulty to control with herbicides has pushed them to the top of the list in this survey.”

WSSA also sorted the survey data to produce the following crop-specific results, shown below by crop, most troublesome weed and most common weed, respectively:
  • Alfalfa: Canada thistle; dandelion
  • Canola: kochia; wild oat
  • Cotton: Palmer amaranth; morningglory (ivyleaf, pitted, tall)
  • Fruits & nuts: field bindweed; horseweed (marestail)
  • Peanuts: nutsedge (yellow, purple); Palmer amaranth
  • Pulse crops: common lambsquarters; common lambsquarters
  • Soybeans: horseweed, waterhemp (tall, common); waterhemp (tall, common)
  • Sugar beets: common lambsquarters; common lambsquarters
  • Vegetables: nutsedge (yellow, purple); common lambsquarters
Although listed as the most troublesome weed in cotton only, Palmer amaranth was ranked first in the overall survey based on the number of respondents who cited it as a problem.

Common lambsquarters is widely distributed across the northern half of the United States and southern Canada. It is not surprising that it ranked as the most common weed in sugar beets, vegetable crops and pulse crops, such as dry edible beans, lentils and chickpeas.

WSSA plans to conduct habitat-specific weed surveys annually. The 2017 survey will focus on weeds in grass crops, pasture and turf, while the 2018 survey will focus on weeds in aquatic environments, natural areas and other noncrop settings.

The 2016 survey data is posted online at http://wssa.net/wssa/weed/surveys.

For more information specific to herbicide-resistant weeds, see the International Survey of Herbicide Resistant Weeds, available at http://weedscience.com.
Published in Research
April 17, 2017, Guelph, Ont – The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE registration for Prowl H2O herbicide for control of labeled weeds on direct seeded, green (bunching) onions grown on muck soil in eastern Canada and British Columbia.

Prowl H2O herbicide was already labeled for use on a number of crops in Canada for control of weeds.

The minor use project for green onions grown on muck soil was sponsored by Agriculture and Agri-Food Canada, Pest Management Centre (AAFC-PMC) as a result of minor use priorities established by growers and extension personnel.

Prowl H2O herbicide is toxic to aquatic organisms and non-target terrestrial plants. Do not apply this product or allow drift to other crops or non-target areas. Do not contaminate off-target areas or aquatic habitats when spraying or when cleaning and rinsing spray equipment or containers.

Follow all precautions and detailed directions for use on the Prowl H2O herbicide label carefully.

For a copy of the new minor use label contact your local crop specialist, regional supply outlet or visit the PMRA label site http://www.hc-sc.gc.ca/cps-spc/pest/registrant-titulaire/tools-outils/label-etiq-eng.php .
Published in Weeds
April 17, 2017, Guelph, Ont – Health Canada’s Pest Management Regulatory Agency (PMRA) has completed a special review on Paraquat (Gramoxone Liquid Herbicide) and proposed a phase-out of the product. See part of the decision below:

[PMRA] recently conducted a Special Review of Paraquat and concluded that changes to the Gramoxone Liquid Herbicide with Wetting Agent, Reg. No. 8661   (i.e. “Gramoxone”) product formulation and packaging are required. As a result of this decision, a phase-out of the current product is being implemented.

As mandated by the PMRA, Syngenta will not be selling Gramoxone (in its current form) after March 31, 2017. The last date that retailers can sell this product is September 30, 2017.

Growers may continue to use the current formulation of Gramoxone during the 2017 and 2018 seasons. After December 31, 2018, this formulation of Gramoxone must not be used and must be properly disposed of. Please contact CleanFarms (1-877-622-4460) for information regarding the pesticide disposal program in your area.

Options to make this tool available to Canadian growers beyond December 31, 2018, are currently being considered and evaluated. We will update you in the future, as appropriate.

In order to continue to use Gramoxone for 2017 and 2018, there are additional stewardship requirements that must be met:
  • Gramoxone may only be sold to and used by individuals that hold an appropriate pesticide applicator certificate or license as recognized by the appropriate provincial/territorial pesticide regulatory agency.
  • See amended label for changes in PPE and first aid instructions.
  • Gramoxone may only be tank-mixed with products on the label.
  • Retailers must provide a copy of the Paraquat Stewardship Counter Card to the end-user (i.e. grower, applicator, etc.) at the time of sale.
These stewardship requirements can be found on the Gramoxone Product Page, short video and Powerpoint presentation.
Published in Weeds
March 27, 2017, Ridgetown, Ont – The Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) has released its 2017 schedule for integrated pest management (IPM) workshops for those who will be scouting horticultural crops this year. To register, please contact OMAFRA’s Agricultural Information Contact Centre at 1-877-424-1300.

Planning is also underway for scout training workshops for hops, hazelnuts and berry crops. Details for these workshops will be available soon.          

Introduction to IPM
May 2, 8:30 a.m. to 3:30 p.m.
Conference Rm 1, 2 and 3, 1st Floor, 1 Stone Rd. West, Guelph
Workshop Leader: Denise Beaton
Notes: Lunch on your own. Handouts provided. Pay parking ($12/day).
 
Tomatoes & Peppers
April 28, 8:30 a.m. to 1 p.m.          
Room 126 (Main Floor), Agronomy Building, University of Guelph, Ridgetown Campus
Workshop Leader: Janice LeBoeuf
Notes: Lunch on your own. Handouts provided. See Resources for Vegetable Crop Scouts.

Asparagus    
Field sessions available upon request
Email: Elaine Roddy, Vegetable Specialist – This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Cole Crops    
May 8, Time: TBD
Conference Rm 2, 1st Floor, 1 Stone Rd. West, Guelph
Workshop Leader: Dennis Van Dyk
Notes: Lunch on your own. Handouts provided. Pay parking ($12/day). See Resources for Vegetable Crop Scouts.

Lettuce, Celery, Onions, Carrots    
May 10, Time: TBD
Conference Rm 2, 1st Floor, 1 Stone Rd. West, Guelph
Workshop Leader: Dennis Van Dyk
Notes: Lunch on your own. Handouts provided. Pay parking ($12/day). See Resources for Vegetable Crop Scouts.

Sweet Corn, Bean and Pea
May 11, 9:30 a.m. to noon
Room 126 (Main Floor), Agronomy Building, University of Guelph, Ridgetown Campus
Workshop Leader: Elaine Roddy
Notes: Lunch on your own

Cucurbit Crops
May 11, 1 p.m. to 3:30 p.m.
Room 126 (Main Floor), Agronomy Building, University of Guelph, Ridgetown Campus
Workshop Leader: Elaine Roddy
Notes: Lunch on your own

Apples
May 4, 9 a.m. to 3 p.m.
Auditorium, Simcoe OMAFRA Resource Centre
Workshop Leader: Kristy Grigg-McGuffin
Notes: Lunch on your own. Handouts provided. If possible, bring OMAFRA Publications 360 & 310 (available for purchase as well).

Tender Fruit and Grape      
May 9, 9 a.m. to 1 p.m.
Rittenhouse Hall, Vineland OMAFRA Resource Centre
Workshop Leader: Wendy McFadden- Smith
Notes: Bring a laptop with WiFi capability. Lunch on your own.

Ginseng (IN-FIELD)  
June 15, 1 p.m. to 3:30 p.m. (Rain date: June 16, 1 p.m. – 3:30 p.m.)
C&R Atkinson Farms Ltd., 228 Charlotteville Rd. 1, St. Williams
Workshop Leaders: Sean Westerveld and Melanie Filotas

Published in Vegetables
March 1, 2017, Calgary, Alta – Chateau herbicide, by Valent Canada, Inc. is now registered for use on broccoli and caneberry.

Broccoli and caneberry growers in Canada now have another tool to assist in the control of Group 2-acetolactate synthase (ALS) resistant weeds, such as red root pigweed, green pigweed, eastern black nightshade and common ragweed.

Chateau, containing flumioxazin (51.1 per cent), is a residual pre-emergent herbicide. A PPO inhibitor, Chateau’s mode of action is different than many other herbicides, so it helps fight resistance, while providing long-lasting control of tough weeds including Group 2-resistant weeds.

“Chateau has proven to be an effective herbicide on a wide range of crops” says Maria Dombrowsky, horticulture specialist at Nufarm Agriculture Inc. “I am pleased that this tool is now available to broccoli and caneberry growers for incorporation into their IPM program.”

Chateau should be used in rotation with other herbicide modes of action. Chateau is also registered for use on other crops, including pome fruit, blueberries and strawberries. For more information, consult the complete product label at www.nufarm.ca/product/chateau/.
Published in Weeds
February 8, 2017 – Walki, a producer of technical laminates and protective packaging materials, has developed an organic mulching solution based on natural biodegradable fibres instead of plastic.

Walki Agripap is made from kraft paper that is coated with a biodegradable coating layer, which slows down the degradation of the paper. Without the coating, the paper would degrade in the soil within a few weeks.

Walki’s new organic mulching solution has been the subject of extensive field-testing in Finland. The tests, which were carried out in 2016 by independent research institute Luke Piikkiö, compared the performance of different biodegradable mulches for growing iceberg lettuce and seedling onions. The tests demonstrated that Agripap was easy to lay on the fields and delivered excellent weed control. The results in terms of yield and durability were also good.

Following the successful testing and approval of Agripap in Finland and Sweden, the next step will be to complete testing in Europe’s main mulching markets: Spain, France and Italy.
Published in Planting
January 9, 2017 – Syngenta and DuPont Crop Protection recently announced the publication of a joint patent, focused on the development of a new herbicide chemistry class.

Collaboration on the project started in 2015 and has resulted in the joint patent entitled "Substituted cyclic amides and their use as herbicides." The new herbicide has entered into the pre-development stage and is expected to be launched in 2023.

“We are very pleased that our collaboration with Syngenta has extended into a joint research project for a new herbicide chemistry class,” said Timothy P. Glenn, president of DuPont Crop Protection. “Partnerships for the advancement of crop science and development of crop protection solutions help growers realize the potential in their fields.”

“We are excited to be working again with DuPont on this herbicide research and development project,” said Jon Parr, president for crop protection at Syngenta. “Success in this field will bring much needed new technology to farmers in the increasingly challenging area of weed management, including resistance.”
Published in Chemicals

Jan. 21, 2016, Urbana, Ill. – Weeds are a major scourge for organic growers, who often must invest in multiple control methods to protect crop yields. A relatively new weed control method known as abrasive weeding, or "weed blasting," could give organic growers another tool. The method, recently field-tested at the University of Illinois (U of I), is surprisingly effective.

In conjunction with plastic mulch, abrasive weeding reduced final weed biomass by 69 to 97 per cent compared to non-weeded control plots, said U of I agroecologist Samuel Wortman.

Abrasive weeding involves blasting weed seedlings with tiny fragments of organic grit, using an air compressor. For the current study, grit was applied through a hand-held siphon-fed sand-blasting unit connected to a gas-powered air compressor, which was hauled down crop rows with a walk-behind tractor. The study looked at a number of grit sources: walnut shells, granulated maize cob, greensand, and soybean meal. If applied at the right plant growth stage, the force of the abrasive grit severely damages stems and leaves of weed seedlings.

Wortman found no significant differences between the grit types in terms of efficacy. "When it leaves the nozzle, it's at least Mach 1 [767 mph]," Wortman noted. "The stuff comes out so fast, it doesn't really matter what the shape of the particle is." Because ricocheting particles can pose a risk to the applicator, Wortman advises using protective eyewear.

Blasted grit does not discriminate between weed and crop seedlings, which makes it important to use this method in transplanted crops that are substantially larger than weed seedlings at the time of grit application. Although some visible damage occurred on stems and leaves of both tomato and pepper crops, the damage did not affect marketable fruit yield. Studies are ongoing to determine whether abrasions on crop tissues could result in increased susceptibility to disease, but early results show little effect.

Importantly, plots with plastic mulch and one or more blasting treatment achieved the same fruit yields seen in hand-weeded plots, and 33 to 44 per cent greater yields than in non-weeded control plots.

An additional benefit of weed blasting is the potential for growers to use organic fertilizers, such as soybean meal, as blasting material. "We expect that abrasive weeding could contribute between 35 and 105 kg nitrogen per hectare [31 – 94 lbs per acre] to soil fertility." The idea that a grower could both fertilize and kill weeds in a single pass is appealing, but it is still unknown whether the fertilizer would be available for plant uptake within critical windows.

According to Wortman's research, weed blasting does affect some weeds more than others. Essentially, the smaller the seedling, the better. Also, seedlings whose growing points are aboveground (annual broadleaf species) are more susceptible to blasting than seedlings whose growing tips are located belowground (grasses and broadleaf perennials). Finally, Wortman noted that the presence of plastic mulch seemed to factor strongly into the equation. Weed blasting alone "is not a silver bullet, but it is an improvement," he said.

The method is now being tested in different horticultural crops, including broccoli and kale, with and without additional weed control methods. Early results suggest that the presence of polyethylene mulch or biodegradable plastic mulch strongly enhances the success of weed blasting, as compared with straw mulch and bare soil. Wortman and his collaborators have also developed a mechanized grit applicator, which they are currently testing.

The paper, "Air-propelled abrasive grits reduce weed abundance and increase yields in organic vegetable production," was published in Crop Protection. Funding was provided by the National Institute of Food and Agriculture's Organic Agriculture Research and Extension Initiative.

 

 

Published in Weeds

December 22, 2015, Ridgetown, Ont – At the recent 70th annual meeting of the North Central Weed Science Society (NCWSS) in Indianapolis, Dr. Darren Robinson, associate professor with plant agriculture, received the Distinguished Achievement Award in Research.

Darren’s research focuses on high value vegetable crops including tomatoes, sweet corn, cucumbers, pumpkins, squash, green and lima beans, field peppers, carrots, red beets, cabbage, broccoli, cauliflower, potatoes and peas.

Selection for this award is based on demonstrated excellence and creativity in research activities through conducting research and applying the results to solve problems in weed science.

As a well-respected Ontario agricultural scientist, Darren has published 85 peer reviewed manuscripts, authored or co-authored three book chapters, supervised or co-supervised 14 graduate students, presented 74 papers at scientific conferences and given over 120 extension presentations and helped deliver 19 short courses.

Darren has served on the board of the Canadian Weed Science Society and is an associate editor for the Canadian Journal of Plant Science and Weed Technology.

Published in Weeds

November 4, 2014, Mississauga, Ont – Growers in Eastern Canada now have a new and improved weed management solution for pre-plant and pre-harvest use. BASF recently announced it has received registration from the Pest Management Regulatory Agency (PMRA) for Eragon LQ herbicide for the 2015 season.

Eragon LQ delivers weed control in a new liquid formulation for faster fill-up times and improved tank cleanout. Eragon LQ is a unique Group 14 chemistry that uses the active ingredient Kixor to help growers improve their glyphosate burn down in the spring and improve their harvest in the fall. It provides improved control of weeds like lamb’s-quarters and Canada fleabane, including Group 2-, triazine- and glyphosate-resistant weed biotypes.

“We know growers prefer liquid formulations and Eragon LQ is another example of BASF’s commitment to providing growers with the solutions they need to produce the best crop possible,” said Sean Chiki, brand manager for corn and soybean herbicides at BASF Canada. “Eragon LQ has also received registration for pre-harvest weed management applications in cereals. Aside from pre-plant applications, this new use pattern gives growers another application window to manage tough to control weeds, combine cereals more efficiently and control perennials for cleaner fields in the spring.”

For more information about Eragon LQ, visit www.agsolutions.ca.

Published in Weeds

September 9, 2014, Winnipeg, Man – Makhteshim Agan of North America (MANA) Canada is please to announce the addition of Steve Lepper to their sales team.

Lepper will cover the sales territory encompassing southwest Manitoba and southeast Saskatchewan. He has more than 18 years experience in the crop protection business in western Canada, and is well suited to helping MANA Canada grow their strong market portfolio.

Lepper has worked on both sides of the retail trade, initially on the retail side of the seed business, and as branch manager of a large farm retailer in southern Manitoba. For the last six years, he has worked with a major crop protection company as a territory sales manager and most recently was promoted to key accounts management.

“We are excited to have Steve join the MANA Canada team. His depth of experience in retail sales and the crop protection business brings a unique blend of skills to MANA Canada,” says Andrew Mann, CEO MANA Canada at Winnipeg, Man. “He is a great fit for the team and I know that he will bring value and add success to our retailer network.”

Lepper has a Bachelor of Science in agricultural economics from the University of Manitoba. In addition, he has been active in the Canadian Association of Agri-Retailers, serving on the board of directors, and acting as co-chair on the stewardship and agronomy committee. He is an active member of the Manitoba Institute of Agrologists.

Published in Diseases

May 20, 2014 – The Pest Management Regulatory Agency has changed their definition for a Restricted Entry Interval (REI) for pesticide applications.  The Ontario Pesticide Education Program has put together a factsheet that explains the changes.

 

 

 

 

Published in Research

Growers face a two-pronged challenge when trying to defeat weeds in a potato field. On the one hand, they want to kill the weeds; on the other, they want to grow potatoes.

This challenge was highlighted in two presentations Pam Hutchinson, an associate professor in the Department of Plant, Soil and Entomological Sciences at the University of Idaho, delivered at the recent Pacific Agriculture Show in Abbotsford, B.C.

Hutchinson made two key points to growers: herbicides should be matched to soil conditions to ensure developing tubers are adequately protected against competition, while being sure that the materials they’re using don’t stunt the growth of potato plants while they’re doing what they’re supposed to – suppress weeds.

Hutchinson came packing a tonne of data from research trials that underscored how tightly managed herbicide applications need to be for maximum effectiveness. The information reviewed work with Chateau, Outlook, Prism, Prowl H20, and the new offerings Lorox and Reflex.

Hutchinson said sandy soils may offer good drainage, but the same quality also lets highly soluble herbicides like Matrix and Outlook leach out of the rows, allowing weeds to take hold. She recommended Chateau and Lorox, which are not as soluble, in these conditions.

A less soluble herbicide, such as Prism or Metribuzin, can also provide adequate coverage in fields with heavier soils and prone to clodding.

She also encouraged growers to time herbicide applications as close to emergence as possible. While weeds can be taken out with a cultivator when potatoes have put out a couple of leaves, Hutchinson advised applying herbicides when the potatoes are hilled, which usually occurs four to eight weeks after planting.

“You’ll get the herbicides down where you need them and they’ll last into the growing season until a little beyond row close, when you start having a crop to help compete with those weeds,” she said.

But there’s another variable – the weather. Suppressing weeds is desirable, but potatoes are also susceptible to the effects of some materials. While they can metabolize products as diverse as Roundup and Chateau, little will happen without a good run of sun.

“The only way the potato can be safe ... is to metabolize that herbicide, break it down to a non-herbicidal chemical,” Hutchinson said. “So if it’s cloudy or cool, the potato is not growing very fast and not metabolizing anything very fast.”

Hutchinson’s trials indicate that the plants can recover, but even a brief slowdown in the plant’s metabolism can lead to short-term stunting and a slight reduction in yield.

Outlook presents a different scenario. It’s typically applied at a higher rate, particularly on coarse soils, and this can lead to early season injury – leaf crinkling and chlorosis – if the weather at application is cold and cloudy. But once it warms up and the potatoes are growing, Hutchinson said there’s no reduction in yield.

A particular challenge for growers in Idaho, however, is protecting potatoes from the carryover effects of Roundup (glyphosphate) as well as dicamba and pyralids. The problem particularly affects seed potatoes, which get a dose late in the season when Roundup is applied in adjacent grain fields. Roundup drifts on to foliage, and from there, travels to the tuber.

Carryover of the material has dogged growers. It persists for up to eight months in tubers, stunting growth the following season. While potatoes can metabolize the herbicide, the process requires sunlight and warmth – something the tubers don’t get in storage.

While a high concentration can prevent sprouting, even small concentrations can inhibit emergence and be expressed in low vigour and foliar injury.

Recovery is possible, of course. Tests of seed stock from treated Russett Burbank and Shepody plants stayed hard and intact throughout the growing season – until the eight-month window required for metabolizing the glyphosphate was up. Then they started sprouting. Similarly, the granddaughters of affected tubers were fine.

To protect themselves, Hutchinson told growers to avoid cross contamination of their equipment, having equipment dedicated to Roundup if at all possible. Talking with neighbours whose fields abut their own is also a wise move, so that everyone knows when, where, and what concentration of Roundup is going on fields.

 

Published in Weeds

March 18, 2014, Guelph, Ont – Bayer CropScience Canada recently announced the registration of Alion as a pre-emergent residual herbicide for grapes.

The Group 29 herbicide provides long-term residual control of annual grassy and broadleaf weeds and is currently registered for use with tree fruit. It prevents weeds from emerging by inhibiting the growth of the developing radicle in the seed germination zone.

“Canadian grape growers will see the benefits of a completely new mode of action that provides longer lasting control compared to competitive products,” explained David Kikkert, portfolio manager for horticulture with Bayer CropScience. “This unique mode of action combined with its tank-mix flexibility makes it an excellent resistance management tool especially for glyphosate, triazine and ALS-resistant weeds.”

Alion can be tank-mixed with glyphosate, Gramoxone herbicide, and Ignite herbicide in grapes to provide control of already emerged weeds. It can be applied to established grapes of at least five full growing seasons after transplanting and when soil disturbance is finished, including hilling and de-hilling operations.

Alion is now also registered as a tank-mix with Sencor herbicide or Gramoxone herbicide in tree fruit, in addition to the previous registered tank-mixes of glyphosate and Ignite.

For more information, visit BayerCropScience.ca.

 

Published in Weeds

January 13, 2014, Mississauga, Ont – BASF Canada Inc. (BASF) has received regulatory approval for Outlook, a new herbicide that will help potato growers address two significant challenges to their production.

As the amount and timing of rainfall becomes more variable, Outlook will provide consistent control of nightshade, pigweed and annual grasses, even under drier conditions. As a Group 15 herbicide, Outlook also controls both triazine and Group 2 resistant biotypes whose populations continue to increase across the country.

“Based on our extensive field-scale Canadian research program and several years of commercial use in the U.S., we see Outlook as an excellent new tool that will help growers address both inconsistent rainfall and the growing problem of herbicide resistance,” says Bruce Irons, a technical specialist for horticultural products with BASF Canada.

Outlook contains the active ingredient Dimethenamid-P, which inhibits weed root and shoot growth, controlling susceptible weeds before they emerge from the soil. Outlook is applied after potatoes are planted but before they emerge from the soil.

For more information about Outlook herbicide, visit www.AgSolutions.ca or contact Bruce Irons ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ). Technical sales support of Outlook and all other BASF horticultural products is provided by Engage Agro Corporation sales representatives.

 

Published in Weeds
May 21, 2013, Guelph, Ont – Ontario farmers are paying an estimated $22 million more every year for crop protection products than their competitors in the United States. This is according to analysis done by the Ontario Fruit and Vegetable Growers Association (OFVGA).

“Although product mix and volumes vary by crop and region, these numbers represent a disturbing amount of extra costs borne by Ontario farmers compared to our competitors south of the border,” says Ray Duc, a grape grower and chair of the OFVGA.

The analysis was completed using data from the 2012 University of Guelph Ridgetown Campus survey of averages prices for key agricultural inputs in the U.S. and Ontario, which includes fuel, fertilizer and 28 crop protection products; as well as the results of the latest Pesticide Use Survey conducted by the Ontario Ministry of Agriculture and Food (OMAF).

OFVGA analysis shows only three products of the 28 with a lower price in Ontario – RoundUp Weather Max, Guthion Solupac and Dithane DG Rainshield. All other products are more expensive in Ontario than for growers in the United States. The 28 products surveyed by the University of Guelph Ridgetown Campus represent approximately 85 per cent by volume of the total crop protection products used in Ontario.

The remaining 15 per cent is made up of more than 200 other products, including some with prices up to seven times higher in Canada than the United States, which means the total cost difference could even be higher if these were taken into account.

 “Crop protection is a significant input cost for our growers and since we compete against global producers of fruits and vegetables, these are extra costs that we cannot recoup from the marketplace,” adds Duc. “We need a more level playing field if our industry is to remain competitive.”
Published in Provinces

May 13, 2013, Calgary, AB – Always looking for ways to improve their products, Dow AgroSciences is introducing new formulations for three horticultural products.

Entrust SC insecticide, previously packaged as a wettable powder and sold under the name Entrust 80W, will now be delivered in a new liquid formulation in one litre bottles. Entrust SC provides the performance both conventional and organic growers have come to trust and is active on several economically important insect pests of fruits and vegetables.

Entrust is approved by the Organic Materials Review Institute (OMRI) for use on certified organically grown crops. The active ingredient in Entrust is spinosad and is produced by fermentation of naturally occurring bacteria.

Lorsban NT insecticide uses technology to produce a low-odour, water-based formulation of Lorsban 4E insecticide. Like its predecessor, Lorsban NT offers versatility in controlling a wide variety of pests across numerous crops.

Lorsban NT controls insects through contact plus ingestion and vapour inhalation.

Kerb SC herbicide will replace its granular predecessor Kerb 50WSP. Kerb SC is liquid formulation that provides selective grassy weed control in a wide variety of horticultural crops and established pastures.

A soil active herbicide, Kerb SC is absorbed by plants through the root system, translocated upward and distributed throughout the entire plant. Kerb can be applied preplant incorporated on certain crops, pre-emergence and post-emergence to all registered crops.

Published in Weeds
April 16, 2013, Mississauga, Ont – Western Canadian potato farmers and Canadian processing tomato growers now have a new tool for weed control and more resistance management. Titus PRO is a new DuPont post-emergent herbicide solution that combines Prism SG (rimsulfuron) and a 75 per cent DF metribuzin into one co-pack.

“Titus PRO provides exceptional post-emergent control of a broad spectrum of grassy and broadleaf weeds, and its multiple modes of action make it an excellent resistance management tool,” says Ray Janssen, market segment manager for horticulture with DuPont Crop Protection.

Packaged in a 40 acre case, Titus PRO delivers multiple modes of action – Group 2 and Group 5 – in one co-pack, providing the industry with a resistance management tool.

“Growers have always appreciated the control of annual grasses they’ve achieved using Prism SG. Now with the additional power of metribuzin, they’ll see enhanced residual control of a far wider range of broadleaf weeds as well,” says Janssen. “We’re pleased to be able to deliver this co-pack of powerful performance and convenience to the largest horticultural market in Canada.”

Titus PRO controls grassy weeds such as barnyard grass, quackgrass and lamb’s-quarters and broadleaf weeds such as cocklebur, common chickweed and post-emergent stinkweed. A full listing of registered uses is available on the product’s label.

For more information about Titus PRO or any other DuPont product, call 1-800-667-3925 or visit cropprotection.dupont.ca.
Published in Weeds
April 16, 2013 – The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion for Prowl H2O Herbicide (pendimethalin) for control of weeds on green onions (mineral soil) and transplanted leeks (mineral soil) in Canada.

Prowl H2O herbicide was already labeled for management of weeds on corn, soybeans, snap beans, adzuki beans and dry bulb onions in Canada.

These minor use submissions were sponsored in 2010 and 2011 by the minor use office of OMAF in response to minor use priorities identified by producers and extension personnel in Canada.

Weed control is an important component of green onion and leek production and has been identified as a priority by producers for several years. The registration of Prowl H2O herbicide is an important step towards improving the weed management and resistance management toolkit.

For copies of the new supplemental label for green onions and leeks contact Kristen Callow, OMAF, Harrow (519) 738-1232 or visit the BASF Canada website.
Published in Weeds

February 26, 2013, Ridgetown, Ont – The program that educates and trains Ontario farmers and pesticide vendors in the responsible and safe use of pesticides has gone online.

In the past 25 years, the Ontario Pesticide Education Program has trained more than 21,000 farmers and more than 1,100 pesticide vendors in best management practices for pesticide use. As well, the course has trained 273 certified farmers who now provide on-farm pesticide safety training to their assistants and employees. More than 220 courses are planned for this winter and more than 3,000 farmers will either renew their certification or certify for the first time. 

Susan Kelner, program coordinator, says this year farmers have an additional way to certify rather than attending face-to-face, day-long courses. Farmers may take the course and certify online. The first online participants were very satisfied with the new format. One participant noted: “I am very happy to have the pesticide course offered this way.  It definitely makes it more accessible to people.” 

Much of the success of the program lies with the local instructors. Many of them are farmers who have taught pesticide safety for more than 20 years.

Kelner notes that a key course topic this year is how to manage glyphosate-resistant weeds.  In Ontario, three weeds have been confirmed resistant to glyphosate: giant ragweed, common ragweed, and Canada fleabane.

Environmental protection is another topic that will emphasize ways to protect non-target plants and animals by reducing spray drift.

For a list of online or face-to-face courses available this season, visit www.opep.ca.

Published in Provinces
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