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Publication 840 Crop Protection Guide for Nursery and Landscape Plants 2021

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Publication 840 Crop Protection Guide for Nursery and Landscape Plants 2021 Publication 840 Crop Protection Guide For Nursery and Landscape Plants 2021 Ministry of Agriculture, Food and Rural Affairs Discard old editions of this publication. Each year a Examples of when you must use a supplemental/amended technical committee comprised of representatives from label include: provincial government, industry, academia and grower • Emergency Use Registration organizations reviews the pesticides listed in the publication. • Minor Use Label Expansion To the best knowledge of the committee, at the time of publishing, the pesticide products listed in this publication You can obtain a copy of a supplemental amended label from were federally registered. the pesticide manufacturer or pesticide vendor, the grower association that sponsored the emergency registration or The information in this publication is general information minor use, from OMAFRA crop specialists or PMRA’s Pest only. The Ontario Ministry of Agriculture, Food and Rural Management Information Service. Affairs (OMAFRA) does not offer any warranty or guarantee, nor does it assume any liability for any crop loss, animal loss, For more information on the federal registration status, check health, safety or environmental hazard caused by the use of a the PMRA website at www.healthcanada.gc.ca/pmra or call pesticide mentioned in this publication. 1-800-267-6315. This publication lists a number of brand names of pesticides. It is neither an endorsement of the product nor a suggestion that REGULATION OF PESTICIDES IN ONTARIO similar products are ineffective. The Ontario Ministry of Environment, Conservation and Parks (MECP) is responsible for regulating pesticide sale, use, THE PESTICIDE LABEL transportation, storage and disposal in Ontario. Consult each product label before you use a pesticide. Ontario regulates pesticides by placing appropriate education, The label provides specific information on how to use the licensing and/or permit requirements on their use, under the product safely, hazards, restrictions on use, compatibility with Pesticides Act and Regulation 63/09. other products, the effect of environmental conditions, etc. All pesticides must be used in accordance with requirements under the Pesticides Act and Regulation 63/09, which are The pesticide product label is a legal available on the e-laws website at ontario.ca/laws or by calling document. Follow all label instructions. the ServiceOntario Publications Toll-Free number: 1-800-668-9938 or 416-326-5300. CLASSIFICATION OF PESTICIDES REGISTRATION OF PESTICIDE PRODUCTS As of May 1, 2020, Ontario’s pesticides classes have been The Pest Management Regulatory Agency (PMRA) of Health aligned with the federal government’s pesticide categories Canada registers pesticide products for use in Canada to remove duplication and reduce complexity for the sale following an evaluation of scientific data to ensure that the and use of pesticides in Ontario, while ensuring continued product has value, and the human health and environmental protection of human health and the environment. MECP risks associated with its proposed use are acceptable. automatically classifies pesticides in Ontario as Class A, B, C, 1. Full Registration D or E. The Ontario pesticide classification system provides Pesticide registrations are normally granted for a period of the basis for regulating the distribution, availability and use 5 years, subject to renewal. of pesticide products in Ontario. For more information on the classification of pesticides, visit the MECP website at 2. Emergency Registration ontario.ca/pesticides. An emergency registration is a temporary, time-limited registration of no more than 1 year, approved to deal with serious pest outbreaks. An emergency is generally CERTIFICATION AND LICENSING deemed to exist when both of the following criteria are met: Growers and Their Assistants A. An unexpected and unmanageable pest outbreak or For information about farmer training and certification pest situation occurs that can cause significant health, requirements, visit the MECP website at ontario.ca/pesticides environmental or economic problems; and and for information on courses check the Ontario Pesticide B. Registered pesticides and cultural control methods or Education Program website at www.opep.ca or call practices are insufficient to address the pest outbreak. 1-800-652-8573. Pesticide Commercial Applicators (Exterminators) and MAXIMUM RESIDUE LIMITS Their Assisting Technicians For more information about exterminator licensing and The PMRA has established maximum residue limits technician training, visit: (MRLs) for pesticides. An MRL is the maximum amount of • the Ontario Pesticide Training and Certification website at pesticide residue that may remain on food after a pesticide www.ontariopesticide.com or call 1-888-620-9999 or is applied as per label directions and which can safely 519-674-1575 be consumed. Processors or retailers may demand more restrictive limits. Growers should seek advice of their intended • the Pesticide Industry Council’s Pesticide Technician market to determine if more restrictive limitations apply. Keep Program website at www.horttrades.com/pesticide-technician accurate and up-to-date records on pesticide use in each crop. or call 1-800-265-5656 or email [email protected] • the Pesticide Industry Regulatory Council (PIRC) at SUPPLEMENTAL/AMENDED LABELS www.oipma.ca. Supplemental/amended labels provide label directions for new approved uses for a registered pesticide that do not appear Cette publication est aussi disponible en français. on the current label. These label directions MUST be followed when using the pesticide for these purposes. Publication 840 Crop Protection Guide For Nursery and Landscape Plants 2021 Ministry of Agriculture, Food and Rural Affairs Acknowledgements The information contained in this publication is supplied by Crop Specialists of OMAFRA’s Agriculture Development Branch. OMAFRA Publication 840, Crop Protection Guide for Nursery and Landscape Plants 2021 and Publication 841, Guide to Nursery and Landscape Plant Production and IPM, together replace OMAFRA Publication 383, Nursery and Landscape Plant Production and IPM. OMAFRA Publication 840 contains information about pesticide products that have been registered as of December 31, 2020, on outdoor ornamentals. OMAFRA Publication 840 is a companion to OMAFRA Publication 841, Guide to Nursery and Landscape Plant Production and IPM. Publication 841 contains more comprehensive information on pest management, nutrition and water quality and includes colour photos for many common pests. Need technical or business information? Contact the Agricultural Information Contact Centre at 1-877-424-1300 or [email protected] If you are looking for nursery and landscape plant information on the Internet, check ontario.ca/crops. It’s one-stop shopping for factsheets, articles and photos about the production and maintenance of woody plants. If you are looking for timely information on the production and maintenance of outdoor ornamentals, check out the Nursery and Landscape Blog at www.onnurserycrops.com. Subscribe by entering your email address and selecting “Follow” to receive email notifications of new posts. Special thanks to Kate Hubbs, Summer Field Technician, Ontario Ministry of Agriculture, Food and Rural Affairs for the creation of the illustrations for the schematics and hand drawn icons in Chapter 2. Cover Images FRONT COVER: Honeylocust trees in summer. Photo courtesy of Winkelmolen Nursery Ltd. BACK COVER: Maple trees in fall. Photo courtesy of Kobes Nurseries Inc. COMING SOON! For the 2022 growing season, you will be able to access the information currently listed in this publication through a new, digital application. The application will replace OMAFRA’s crop protection publications and provide you with information in one single location. This one-stop tool for crop protection information will allow you to: ✔ customize and navigate through information based on your specific needs; ✔ access information when you need it to make important business decisions; and ✔ access information digitally, either through desktop, tablet or mobile. Updates can be found at: ontario.ca/crops Contents 1. Using Pesticides in Ontario Table 2–13 . A Compendium of Pests and Diseases Federal Registration of Pesticides . 1 with Recommended Management Practices — Maximum Residue Limit (MRL) . 1 as of January 1, 2021 . 29 Regulation of Pesticides in Ontario . 2 ABIES — fir . 29 Classification of Pesticides . 2 ACER — maple . 32 Certification and Licensing . 3 AESCULUS — horsechestnut . 36 Certified Farmers and Their Assistants . 3 AMELANCHIER — serviceberry . 36 Pesticide Commercial Applicators BETULA — birch . 37 (Exterminators) and Their Assisting Technicians . 3 BUXUS — boxwood . 39 Ontario’s Cosmetic Pesticide Ban and CARAGANA — pea shrub . 40 Excepted Uses . 4 CARYA — hickory . 41 Pesticide Application Information . 4 CHAENOMELES — quince . 42 Restricted Entry Intervals . 5 CLEMATIS — clematis . 42 Days to Harvest Intervals for Food Crops CORNUS — dogwood . 43 (Pre-harvest, Pre-grazing and Feeding Intervals) . 5 CORYLUS — corkscrew hazel, filbert . 44 Spray Buffer Zones . 6 COTONEASTER — cotoneaster . 44 Vegetative Filter Strips . 6 CRATAEGUS — hawthorn . 45 Protect the Environment . 6 EUONYMUS — euonymus . 47 Protect Water Sources . 6 FAGUS — beech . 49 Bee Poisoning . 7 FORSYTHIA — forsythia . 50 Manage Drift . 8 FRAXINUS — ash . 51 Waste Management . 9 GLEDITSIA — honeylocust . 54 Empty Pesticide and Fertilizer
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