By Josh Mosiondz, Minor Use Coordinator, OMAFA
The Pest Management Regulatory Agency (PMRA) recently announced the approval of an Emergency Use Registration minor use label expansion registration for ARBOTECT® 20-S Fungicide for management of Beach Leaf Disease on Beech Trees in Ontario.
For a refesher on Beech Leaf Disease in Ontario, see the past blog post linked here.
ARBOTECT® 20-S Fungicide was already labeled for management of Dutch Elm Disease in Canada. This Emergency Use Registration was submitted by the Ontario Ministry of Natural Resources in response to this emerging disease in Southern Ontario.
ARBOTECT® 20-S Fungicide can be used by licensed professionals to inject into mature trees for the management of beech leaf disease in the landscape. This product cannot be used on trees than are 13 cm or less in diameter.
Continue reading for a copy of the label and use restrictions.
The following is provided as an abbreviated, general outline only. Users should be making disease management decisions within a robust integrated disease management program and should consult the complete label before using ARBOTECT® 20-S Fungicide.
For use on Beech Trees only:
| Target | Application Rate (mL of product) and Interval | Application Information |
| Beech Leaf Disease | 60 – 240 mL per 13 cm of trunk diameter (at breast height). Apply once every two years | Therapeutic applications should be made after tree is fully leafed (post infection) through summer or early fall. Inject into any exposed root flares, below ground (15 cm), once every two years. The maximum diameter of the injection holes should be 0.64 cm (1.4 inch). Use the higher labelled rate of ARBOTECT 20-S under high disease pressure situations. Trees that are 13 cm or less in diameter at chest height should not be treated. Follow the operating instruction supplied with the injection equipment used. Place injection sites at 7.5 – 25 cm intervals around the base of the tree with a maximum hole diameter of 0.64 cm (1/4 inch) using a minimum of 3 – 4 equally spaced injection points per tree. If pressure injection is used, do not exceed 210 kPa (30 psi).Treatment should be used in conjunction with an insect control and sanitation program (pruning of diseased limbs) in order to obtain best results. Do not dilute ARBOTECT 20-S with highly alkaline water as a precipitate may form. If it does occur, use another water source. |
This product is toxic to aquatic organisms. Do not contaminate irrigation or drinking water supplies or aquatic habitats by cleaning of equipment or disposal of wastes. Do not discharge effluent containing this product into sewer systems, lakes, streams, ponds, estuaries, oceans and other waters.
Follow all other precautions, restrictions, and directions for use on the ARBOTECT® 20-S Fungicide label carefully.
For a copy of the new minor use label, contact local MNR-forestry specialist, your 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
The revised emergency use label is also available here:
Note: This article is not intended to be an endorsement or recommendation for this particular product, but rather a notice of registration activity
