Protection

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

December 17, 2015, Toronto, Ont – Vive Crop Protection and Arysta LifeScience North America recently announced a partnership to combine Vive's patented technology with Arysta LifeScience’s active ingredients.

"Our technology enhances the performance of crop protection products, and this partnership will mean better pest control, maximizing yields for growers," said Keith Thomas, Vive's CEO. "We are very excited to work with Arysta LifeScience to bring these innovative products to their customers."

"When combined with our key actives, the technology provides excellent compatibility and stability in a broad range of liquid fertilizers," said Craig Brekkas, head of marketing with Arysta LifeScience. "This gives growers an excellent tool to provide early-season protection to the crop."

Published in Companies

December 9, 2015 - Researchers from Michigan State University (MSU) have received a $173,151 grant from the U.S. Department of Agriculture National Institute of Food and Agriculture to study novel, non-spray control methods for invasive fruit pests.

The two-year project will examine the use of small nylon pouches that hang from trees and/or bushes. The pouches are treated with insecticides and filled with attractants such as pheromones or food to lure and kill the insects on contact.

Organic pest management expert Matthew Grieshop, tree fruit entomologist Larry Gut and postdoctoral research associate Juan Huang will examine the use of these pouches on three pests:

  • Spotted-wing drosophila is a small vinegar fly native to east Asia that was first detected in California in 2008. Since then, the pest has spread across the country, damaging tree fruit crops and costing growers an estimated $700 million per year.
  • Brown marmorated stink bug, also from Asia, attacks fruit, vegetable and ornamental crops in Michigan and around North America.
  • Codling moth, native to Eurasia, is the primary pest facing the apple industry in Michigan.

The project will allow researchers to determine which attractants work best and how long each pest must be in contact with the insecticide to receive a lethal dose. Grieshop indicated that the project model was taken from research conducted with mosquito netting.

“We’ve been working on the attract-and-kill project for three seasons,” Grieshop said. “It was originally funded by MSU’s Project GREEEN [Generating Research and Extension to meet Economic and Environmental Needs] and commodity groups. The first season was really the development and testing of the technique. The second was working with various pests such as Japanese beetle and Oriental fruit moth. It has worked well, and we’ve gotten great data. We hope to have the same type of success with these other pests.”

Laboratory testing and fieldwork will be conducted. Researchers must determine in the lab how long each species needs to be exposed to the insecticide to suffer 100 percent mortality. Then, in the field, cameras will monitor wild insects’ interactions with the nylon bags.

The initial work isn’t compatible with organic farming because the test insecticide is not National Organic Program (NOP)-compliant. However, eventually the researchers want to determine if NOP-compliant  insecticides could be substituted.

“My hope is that, by expanding our attract-and-kill technique to more pests, we can identify some key insect behavioral characteristics that can predict whether this type of approach is likely to succeed for many pests,” Grieshop said. “The most exciting aspect of this pest management technique is that, by bringing the pest to the insecticide rather than broadcasting the insecticide and hoping that the insect will contact it, we are developing pest management tactics that are both economically and environmentally conscious.”

 

Published in Insects

September 3, 2015, St. Paul, MN — Since 1988, the Compendium of Grape Diseases has been one of the most vital and prolific resources on grape disease management in the English language. The book has helped thousands of vineyard owners and their staff to identify and treat grape diseases through vivid disease images, thorough descriptions, and trusted management recommendations.

The newly released Compendium of Grape Diseases, Disorders, and Pests, Second Edition was produced to serve these needs and more for the wine-, table-, and juice-grape industries. This latest edition was expanded to include the latest diagnostic and management information for diseases, plus insect pests and abiotic disorders such as environmental stresses. In total, it packs 375 detailed images and management recommendations for nearly 70 diseases, insects, and disorders of grape into more than 230 pages.

This vital reference is ideal for vineyard staff and consultants, as well as researchers, extension agents, and diagnosticians who are working to ensure these delicate crops make it safely through the growing season.

The new edition is nearly twice the size of the previous book and is organized in four sections:

  • Part one covers diseases caused by biotic factors. It particularly addresses commonly occurring diseases caused by fungi and oomycetes, bacteria, phytoplasmas, viruses and virus-like agents (including nematode-transmitted viruses), and nematode parasites of grapevines.
  • Part two discusses mites and insects that cause disease-like symptoms in grapes. Coverage includes leafhoppers and treehoppers, mealybugs, thrips, and much more.
  • Part three discusses disorders caused by abiotic factors, with special emphases on chimeras, environmental stresses, nutritional disorders, the various causes of shriveled fruit, and pesticide toxicity.
  • Part four offers two new sections that will help users save money and minimize pesticide use. The first – Grapevine Fungicides – discusses fungicides and cultural practices in the context of minimizing disease resistance. The second – Spray Technology for Grapevines – which emphasizes cost saving techniques and practices, helps users minimize pesticide use and ensures the chemical hits its target, not elsewhere in the environment.

The Compendium of Grape Diseases, Disorders, and Pests, Second Edition also includes an introduction that provides helpful overviews of the grape plant, its worldwide cultivation and varied uses, its history, rootstocks, morphology, and developmental stages.

Appendices include an updated list of common grapevine disease names caused by microbes, nematodes, and viruses; as well as a guide to the many equivalent names given to grapevine diseases and disorders in the English, French, German, Italian, and Spanish languages.

An expanded glossary of more than 800 terms is also used in the book, along with a comprehensive index to make this resource accessible to anyone working in the grape industry, including diagnosticians, extension specialists; consultants; scientists; vineyard managers and staff; juice, fresh fruit, and raisin producers; and students.

Visit www.shopapspress.org to learn more about this and other important crop health titles from APS Press.

Published in Insects

November 3, 2015, Guelph, Ont – The government of Ontario recently announced it will be providing financial support to fruit and specialty crop growers to help them ensure the survival of their apples, tender fruit, berries, and specialty crops.

Ontario is providing financial support to farmers to better ensure the survival of apples, tender fruit, berries, and specialty crops during the winter.

The province will share up to 35 per cent of the cost of weather mitigation equipment and growers can be eligible to receive up to a maximum of $31,500 per project.

This support will help cover the costs of weather mitigation equipment, such as portable or fixed wind machines, heating and air movement devices, insulating devices, overhead irrigation systems, and crop covers.

Growers may apply for funding through the Ontario Crop and Soil Improvement Association, which administers the program, and will accept applications at various times over the next few years. The first intake is from October 22 to November 5, 2015.

Look for details to be posted shortly to the OSCIA website.

Published in Provinces

October 16, 2015, Guelph, Ont – This winter, Ontario is providing financial support to farmers to better ensure the survival of apples, tender fruit, berries, and specialty crops.

Ontario's cold winter months can cause damage to crops and reduce yields. To help growers manage this risk and ensure a steady, competitive supply of Ontario grown food, the province will share up to 35 per cent of the cost of weather mitigation equipment such as portable or fixed wind machines, heating and air movement devices, insulating devices, overhead irrigation systems, and crop covers. Growers can be eligible to receive up to a maximum of $31,500 per project.

“The Ontario Apple Growers strongly welcome the support for cold weather mitigation measures,” said Charlie Stevens, chair of the Ontario Apple Growers. “This support will help to reduce the impact of cold temperatures, ensuring farmers are able to provide consumers with a more stable supply of local Ontario apples for them to enjoy.”

“Weather mitigation equipment helps to protect the tree fruit industry from unfavourable growing conditions,” said Phil Tregunno, chair of the Ontario Tender Fruit Growers. “We greatly appreciate the Ontario government’s recognition of the challenges faced by farmers and the continued support.”

Growers may apply for funding through the Ontario Crop and Soil Improvement Association, which administers the program, and will accept applications at several times over the next couple of years. The first intake is from October 22 to November 5, 2015.

“Our government is pleased to be providing additional support for our apple, tender fruit, berry, and specialty crop growers,” said Jeff Leal, minister of Agriculture, Food and Rural Affairs. “Cost sharing for these projects will help growers take advantage of the best crop protection methods available, ensuring successful survival of cold weather periods, and quality yields at harvest.”

Published in Vegetables

September 4, 2015, Guelph, Ont – Syngenta Canada Inc. recently announced that its first succinate dehydrogenase inhibitor (SDHI) foliar fungicide, benzovindiflupyr – known by the general name Solatenol fungicide – has received registration from Health Canada’s Pest Management Regulatory Agency (PMRA).

Solatenol fungicide is now registered for use in Canada across a wide variety of horticultural and field crops.

According to Syngenta, Solatenol fungicide offers Canadian growers an option for disease control through several features and benefits, including:

  • High potency at lower active ingredient rates compared to other SDHI products, delivering long-lasting, reliable disease control
  • Broad-spectrum control of yield and quality-robbing foliar diseases and soil pathogens, including rusts, Septoria, apple scab, powdery mildew and Rhizoctonia
  • Flexible application timing and tank-mix compatibility for optimum crop safety and resistance management benefits
  • Excellent preventative fungicidal activity that delivers consistent performance under a wide variety of conditions

Solatenol will be part of three new fungicide products expected to hit the market Spring 2016.

Solatenol will be offered to growers of pome fruits and blueberries as Aprovia fungicide. Aprovia provides long-lasting, foliar disease control of apple scab, powdery mildew, and Alternaria blotch in pome fruits, as well as leaf rust in blueberries, via translaminar movement through the plant tissue. Aprovia, which will come in a convenient solo formulation, can also be tank-mixed with a number of other products.

In corn, soybeans and wheat, Solatenol will be marketed as Trivapro fungicide, a product that combines the power of three distinct active ingredients – benzovindiflupyr (Solatenol), azoxystrobin and propiconazole – to provide preventative, curative, and long-lasting protection against the most common leaf diseases and rusts.

“Growers can expect a step change in disease control when they use products containing Solatenol fungicide,” said Eric Phillips, product lead for fungicides and insecticides with Syngenta Canada. “This registration exemplifies our commitment to developing innovative crop protection products to help growers maximize their profit potential.”

For more information about Solatenal, contact your local Syngenta representative or call 1‑87‑SYNGENTA (1‑877‑964‑3682).

Published in Provinces

August 18, 2015, Ridgetown, Ont – The latest pumpkin and squash disease update for the 2015 growing season from Elaine Roddy, Ontario Ministry of Agriculture, Food and Rural Affairs vegetable specialist.

Downy Mildew – While downy mildew is a common occurrence in cucumbers, it is less so in pumpkins and squash. However, growing regions across eastern North American are experiencing unusually high pressure from downy mildew in all cucurbit crops this year. Symptoms and spores were recently identified in a pumpkin field in Norfolk county. While the disease is typically less aggressive in pumpkins and squash than it is in cucumbers, it is still a good idea to scout fields regularly for symptoms. If the scouting results show that the levels of disease are increasing, downy mildew targeted sprays may be warranted to keep later-maturing crops healthy. Keep in mind that fungicides commonly used for powdery mildew control will not control downy mildew.

Powdery Mildew – Powdery mildew is active in most pumpkin fields by now. Fungicides must be applied at the very early stages of this disease in order to be truly effective. Once symptoms are readily visible on the upper-leaf surface, it is usually too late to really benefit from control measures. When scouting, look for white, powdery spores on the lower surface of the leaf. There may be a corresponding light-green or yellow lesion on the top surface. Symptoms usually first appear on the mid-portion of the plant, or even the petioles.

Published in Provinces

July 28, 2015 - While we do not yet know whether brown marmorated stink bugs will be an economically important pest for specialty crops in Ontario, it is a good idea for specialty crop growers to monitor for this pest.

BMSB will feed on an extremely wide range of crops, including several specialty crops growing in Ontario (e.g. okra and many tree nuts).

A list of crops on which BMSB feeding has been observed in the United States can be found at http://www.stopbmsb.org/where-is-bmsb/host-plants/.

For more information on BMSB in Ontario, see this article from Hannah Fraser, OMAFRA Entomology Program Lead for Horticulture -> https://onvegetables.com/2015/07/28/brown-marmorated-stink-bug-update-distribution-monitoring-and-research/

Published in Insects

July 22, 2015, Kelowna, BC – The spotted wing drosophila, an invasive pest that targets cherries and other fruit, is showing up in higher numbers this year in the Okanagan. Homeowners growing backyard fruit are being encouraged to take action to prevent infestations from spreading to local orchards.

“Spotted wing drosophila is a fruit fly. It looks like the regular ones you find around rotten bananas, but this one has developed in such a way that the female has an egg laying device that looks like a saw so it can go after ripening fruit. It can lay its eggs in the ripening fruit and that is why it is such a big problem,” says B.C. Ministry of Agriculture entomologist, Susanna Acheampong. READ MORE

Published in Insects

July 9, 2015 - Late blight was found today in a potato field near Orangeville.

Eugenia Banks, potato specialist with OMAFRA, says it was not easy to determine the source of infection, but there are several home gardens close to the field.

A small section of the field was disked to avoid a source of spores all season long. Banks says the grower is following an aggressive fungicide program: Curzate tank mixed with Bravo plus Kocide applied back-to-back at a four-day interval.

She adds that after this aggressive treatment, Revus is a good choice tank mixed with a broad spectrum product.

"I collected samples of leaves and stems to send to Dr. Larry Kawchuck in Lethbridge, Alta.," Banks says. "He will identify the strain and its susceptibility to Ridomil. I expect to have the results by the end of next week."

Dr. Gary Secor spoke at this year's 2015 Potato Conference. These are his recommendations:

  • Specialty fungicides are necessary if late blight is present. Many of them are translaminar.
  • Curzate: has kickback - two days back, three days forward. Use after a storm if late blight is in the area to stop new infections that might have occurred when fields were too wet to spray.
  • Revus Top: rainfast, translaminar, apply anytime.
  • Gavel: especially good at the end of season; it reduces tuber Infection.
  • Allegro, Ranman: best for late-season use.
  • Acrobat: an antisporulant; helps to slow spread of epidemic.
  • Late blight-specific fungicides should always be tank mixed with Bravo or an EBDC.
  • Also, Copper hydroxide (Parasol, Kocide) provides tuber protection.
  • Always after spraying an infected field, clean up your sprayer.

 

 

Published in Research

July 7, 2015 – The genome of the parasite that is causing clubroot disease on several agricultural and horticultural crops is now released.

The new knowledge will hopefully be useful to develop better diagnostic methods, breeding strategies and elucidating the biology of this unique plant pathogen group.

Clubroot caused by Plasmodiophora brassicae, is a spreading soil-borne disease with high economical impact on Brassica oil- and vegetable crops and production of other valuable species within the family Brassicaceae worldwide.

Resting spores of P. brassicae are extremely resilient to harsh environmental conditions, and contaminate arable land for decades. This feature makes it impossible to eradicate the organism via any known chemical or alternative soil treatment.

Phylogenetically this protist is a Plasmodiophorid within the eukaryote supergroup Rhizaria and unrelated to other better known plant pathogens such as oomycetes and fungi. Spongospora subterranea, which causes powdery scab on potato, and the virus transmitting Polymyxa ssp. are other agricultural important pathogens in this group.

P. brassicae lives entirely underground and has a complex, partly unknown life-cycle. It requires a host to grow which together with its below-ground life has made the genome work extraordinary difficult.

The group of Professor Christina Dixelius with the department of plant biology at the Swedish University of Agriculture Sciences, together with collaborators from other SLU departments and Germany and South Korea, now present the small and compact genome of P. brassicae. With the developmental stage-specific transcriptomes and a transcriptome of S. subterranea, this are the first large scale genomic data of a pathogenic Rhizaria.

“The two pathogens are reduced in a number of metabolic pathways, and various phytohormones contribute to the gall phenotypes of infected roots,” said Dr. Dixelius.

Furthermore, chitin is important for formation of cell walls of the resilient resting spores and chitin-related enzymes are enriched in the Plasmodiophorids, and have experienced phylogenetic patterns not seen in eukaryotes before.

Future post-genomic work comprise re-sequencing of different pathotypes and elucidation of predicted effector proteins.

One issue of high priority is the much-awaited replacement of the rather imprecise and tedious pathotyping systems for P. brassicae into fast and more precise molecular diagnostic tools.

“Such knowledge would considerably support both professional counseling and resistance breeding,” said Dr. Dixelius. “However, much work remains to give us a more complete understanding of this elusive organism.

Published in Research

June 24, 2015, Calgary, Alta – Parasol Flowable fungicide offers flowable copper hydroxide to protect vegetable crops from blight. The new formulation stays in suspension to deliver better coverage.

Parasol Flowable is a Group M1 fungicide approved for use in edible beans, cucumbers, peppers, tomatoes and potatoes. Applied as a protective spray, Parasol Flowable controls bacterial spot, Cercospora leaf blight, common bacterial blight, early and late blight, and halo bacterial blight.

“Protecting high value vegetable crops from blight requires consistent coverage in a fungicide,” says James Ferrier, Eastern technical manager with Nufarm Agriculture Inc. “And the small particle size in the new formulation means Parasol Flowable stays in solution for better plant coverage.”

Parasol Flowable is formulated with small and consistent sized copper particles. The product quickly disperses in water, stays stable in liquid formulation and provides better plant coverage for superior blight protection. Parasol Flowable does not require any additional surfactants, and can be used in a high or low volume spray with all types of spray equipment.

For more information, visit www.nufarm.ca.

Published in Provinces

June 22, 2015, Kent County – Trace amounts of downy mildew were found in a Kent County cucumber field today by a University of Guelph, Ridgetown Campus, scout.

All cucumber growers in Ontario are advised to begin a preventative downy mildew spray program using targeted downy mildew fungicides.

For more information fungicide selection, see the Ontario 2015 Downy Mildew Control Strategy for Cucumbers. Growers are also encouraged to monitor their own fields for early signs of infection.

Current weather conditions are very suitable for the spread of this very aggressive disease. Under these conditions, with downy mildew in the area, a seven-day spray schedule is warranted.

Published in Food Safety

June 16, 2015 – As the effectiveness of the primary chemical weapon against the Colorado potato beetle (Leptinotarsa decemlineata) starts to wane, new ways to manage this pest are needed where potatoes are intensively grown, according to an article in the the Journal of Integrated Pest Management.

Neconicotinoid insecticides have been successfully used since 1995 to fight the beetle, but their effectiveness has been waning in some areas. While resistance is increasing, Anders Huseth, a postdoctoral associate at North Carolina State University, notes that it may not spread to all areas where potatoes are grown. Areas where potatoes are not grown year after year on the same soil are less likely to see insecticide-resistant potato beetles. READ MORE

Published in Insects

June 3, 2015, Woodstock, Ont – The Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) is hosting a blueberry pest management workshop for growers, scouts and consultants June 11.

The event is being held at the Woodstock OMAFRA office, Unit 1 – 401 Lakeview Drive, from 5 to 8 p.m.

Topics to be covered include general scouting procedures (what to look for through the season), using traps for cranberry and cherry fruitworm, management of canker diseases, blueberry maggot and regulations, SWD identification (flies, larvae, damage, salt tests) and brown marmorated stink bug identification.

Cost is $20 at the door and includes refreshments and a light supper. Please pre-register.

For more information and pre-registration, contact David Lauzon or Jacquie Defields at 519-426-7120 or email This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Published in Insects

June 2, 2015, Halifax, NS – Potatoes containing metal objects continued to turn up in food tampering incidents in two different parts of Nova Scotia over the weekend, police reported.

Kings District RCMP announced it is investigating an incident where a finishing nail was found in a potato salad at a community barbecue in Woodville on Sunday. No one was hurt in the incident. READ MORE

Published in Fruit

May 21, 2015, Edmonton, Alta – Over the last few growing seasons, Alberta growers have seen signs of late blight, a serious disease that mainly affects potatoes and tomatoes.

The disease is caused by an aggressive fungus that develops rapidly under wet/moist environmental conditions. Wet conditions, combined with the presence of the pathogen, has resulted in continuing outbreaks of late blight in commercial, market garden and urban potato and tomato crops throughout parts of Alberta. READ MORE

Published in Research

May 15, 2015, Clarington, Ont – Algoma Orchards is the largest independently owned apple grower and packer in Canada. With more than 1,000 acres and another 50 growers in Ontario, they supply apples and apple juice to many parts of the world year round. To make this happen efficiently, Algoma has a 100,000 sq. ft. state-of-the-art packing and sorting facility that can pack 800 boxes of apples an hour.

Codling moth is the most common pest found in apple orchards and an issue that every apple and pear farmer has to deal with. Controlling this insect is tricky, largely due to their feeding habits. Pesticides have been the traditional form of control, but that comes with a few drawbacks, including a hold on re-entry into the field for workers due to toxicity regulations, killing of other useful insects like pollinators, high cost and the potential health risk to the consumer.

A new option for farmers is the use of pheromones. Semios CM-Plus pheromone confuses the male codling moth during its reproductive flight so that it is unable to find the female to fertilize the eggs, thus diminishing the pest population. While pheromones have been used in agriculture before, the ways in that they were deployed were neither efficient nor reliable, until now.

Algoma Orchards was one of 50 farms in Canada to embark on a trial to measure the effectiveness of these pheromones. A control block of 30 acres continued with conventional pest management while 35 acres were setup with 42 pheromone dispensers.

“Typically dispensers are hung in one tree per acre, but the farmer informed us of a hot spot, so we doubled up in this area,” said Jordan Hazell, Semios field biologist.

To monitor this hot spot and other key areas, three camera-equipped insect traps were added and controlled remotely with the aid of a unique patented wireless network. Traditional wireless networks for tree crops have never been reliable, as leaves interfere with the typical radio wave.

“Now that we have conquered this hurdle, tree crop farmers are able to see the field conditions remotely at any time and can now utilize both real-time and historical on-site information to make more informed decisions,” concluded Hazell.

The pheromones are in aerosol form and are turned on just prior to the predicted moth flight. The traps aid in this decision and also give peace of mind knowing that no moths are yet in flight prior to the pheromones being turned on. Codling moth are most active from dusk to dawn so in this case the dispensing of pheromones was set from 5 p.m. to 5 a.m. on a 15-minute dispensing interval.

Through the online user interface called Semioslive, Algoma had access to the status of the field from any device with an Internet connection. This meant the growers could remotely view trap catches, on-site weather data, and monitor or adjust the dispensing schedule remotely, alongside Semios, which monitors the system 24/7. The ability to remotely control each dispenser means the pheromones are only in use when needed, so they last longer, making it a very cost effective pest control solution.

The system took Semios 12 hours to setup and ran for the duration of the growing season from May to September. Since Algoma’s trial site was being utilized for registering Semios CM-Plus, delta traps containing codling moth lures were installed evenly at a density of 1.4 traps/acre. This gave a very detailed look at where moth pressure was the highest and was used to validate consistent pheromone coverage across the entire block. These traps were manually inspected weekly and a moth count was recorded for each trap. The lure contained in each delta trap represents a female, so if the male moths cannot find the traps, it indicates they cannot find the females, meaning the pheromones are effective. Trap shutdown, which is the reduction in trap catch observed between the Semios CM-Plus and control blocks, is the standard measurement for mating disruption. In Algoma’s case, the trap shutdown was 97 per cent, with only 0.17 moths caught in a trap on average over the entire season.

Damage assessments were also conducted by visually inspecting 10 randomly selected apples on 100 different randomly selected trees (1,000 apples in total) in each block. When exterior damage to an apple was observed, the apples were cut open to inspect for larvae or subsequent damage to confirm if codling moth was the culprit. Damage assessment for the Semios CM-Plus block was zero.

“The pheromones worked so well in the trial field that we didn’t need to use any pesticides,” said Manus Boonzaier, farm manager for Algoma Orchards. “The control block in which no pheromones were used required multiple sprays.”

Algoma plans to continue using pheromones as part of their pest control management.

Published in Insects

May 7, 2015, Guelph, Ont – Syngenta Canada Inc. recently announced that apple growers will benefit from broadened disease protection, thanks to a label expansion for Allegro 500F fungicide.

The Allegro label now includes indications for control of bitter rot (Botryosphaeria obtusa), cedar apple rust (Gymnosporangium juniperi-virginianae) and Alternaria blotch (Alternaria mali). The Allegro label expansion also includes suppression of black rot (Colletotrichum spp.), Brooks fruit spot (Mycosphaerella pomi) and quince rust (Gymnosporangium clavipes).

“These latest additions to the Allegro label represent a step change in helping growers produce high-quality, harvestable fruit,” said Eric Phillips, fungicide and insecticide product lead with Syngenta Canada.

Allegro is a broad-spectrum fungicide that contains the active ingredient fluazinam, from the pyridinamine class of chemistry (Group 29). The product’s multi-site activity and liquid formulation allow for control of a broad range of diseases at low use rates.

The registered application rate of 0.75 L/ha to 1 L/ha addresses diseases that affect high-value, high-density plantings of new apple varieties – including gala, ambrosia, sweet tango and honey crisp – that are more prone to attack from bitter rot and black rot.

Another component of the Allegro label expansion is a reduced rate from 1 L/ha to 0.5 L/ha on apple scab (Venturia inaequalis), flyspeck (Schizothyrium pomi) and sooty blotch (Gloeodes pomigena).

“This lower rate supports a cost-effective summer spray schedule on traditional varieties for secondary scab,” said Phillips.

Allegro also suppresses several mite species that infest apple orchards. Growers can follow an Agri-Mek insecticide mite treatment at petal fall, with summer cover sprays of Allegro as part of their spray schedule, contributing to effective management of diseases and mites. Consult the product label for additional information.

To learn more about Allegro, please contact your local Syngenta representative, visit the Allegro 500F product page on SyngentaFarm.ca or contact the Customer Resource Centre at 1 87 SYNGENTA (1‑877‑964‑3682).

Published in Provinces

Subscription Centre

 
New Subscription
 
Already a Subscriber
 
Customer Service
 
View Digital Magazine Renew

Most Popular

We are using cookies to give you the best experience on our website. By continuing to use the site, you agree to the use of cookies. To find out more, read our Privacy Policy.