By Josh Mosiondz, Minor Use Coordinator, OMAFA, Guelph
The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for LOROX XC® Herbicide for control or suppression of labelled weeds in Rhodiola, Edible Honeysuckle (haskap), Raspberry, and Blackberry in Canada. Lontrel XC® Herbicide was already labeled for management of weeds on a wide range of crops in Canada. This minor use proposal was Agriculture and AgriFood Canada’s Pest Management Centre as a result of minor use priorities established by growers and extension personnel.
The following is provided as an abbreviated, general outline only. Users should be making weed management decisions within a robust integrated weed management program and should consult the complete label before using Lontrel XC® Herbicide.
Crop(s) | Target | Rate (L product/ha) | Application Information | PHI (days) |
Rhodiola | Suppression or Control of Labelled Weeds | 0.34 L/ha in 300 L of water per hectare | For the control of labeled weeds, apply Lontrel XC Herbicide using ground equipment only. Apply after transplanted R. rosea have been established. Best results are obtained when weeds are actively growing, and soil moisture is adequate for rapid growth. Under dry soil conditions and poor growing poor growing conditions, weed control may be reduced. Crop injury can occur when applied to plants not actively growing, still in transplant shock or in stressful growing conditions. | 30 |
Raspberry, Blackberry | Suppression or Control of Labelled Weeds | 0.25 L/ha in 100 – 200 L water/ha | Make 1-2 applications per year, with a minimum 30-day application interval, to control labeled weeds. Application rate: Apply Lontrel XC as a banded application to the soil extending out a minimum of 0.5 m on either side of the plant row, to actively growing weeds. Not all varieties of raspberry and blackberry have been tested for tolerance to Lontrel XC Herbicide; therefore, growers are advised to test a small area first before using Lontrel XC Herbicide on an entire field and/or should consult with their seed supplier about the tolerance of raspberry/blackberry varieties to Lontrel XC Herbicide. Avoiding contact of spray on foliage (where possible) will reduce the potential for crop injury. | 30 |
Edible Honeysuckle (Haskap) | Suppression or Control of Labelled Weeds | 0.25-0.5 L/ha of in 100 to 200 L/ha of water | Apply one post emergent application per year at bloom, post-bloom, or after harvest. Apply as a directed spray treatment (ground equipment) targeting weeds and away from the plants (avoid contact with foliage or woody portions to reduce the risk of crop injury) or as a spot treatment under the canopy of edible honeysuckle (haskap) plants. Plants are more sensitive to Lontrel XC Herbicide applied in the spring prior to bloom, before and/or during the crop’s annual flush of growth, than after bloom. | 30 |
TOXIC to non-target terrestrial plants. Observe spray buffer zones specified under DIRECTIONS FOR USE. The use of this chemical may result in contamination of groundwater particularly in areas where soils are permeable (for example, sandy soil) and/or the depth to the water table is shallow. To reduce runoff from treated areas into aquatic habitats, consider the characteristics and conditions of the site before treatment. Site characteristics and conditions that may lead to runoff include, but are not limited to: heavy rainfall, moderate to steep slope, bare soil, poorly draining soil (for example, soils that are compacted or fine textured such as clay). Avoid application of this product when heavy rain is forecast. Contamination of aquatic areas as a result of runoff may be reduced by including a vegetative filter strip between the treated area and the edge of the water body. Additional guidance can be found on the Runoff Mitigation portion of the Canada.ca website.
Follow all other precautions, restrictions, and directions for use on the Lontrel XC® Herbicide label carefully.
For a copy of the new minor use label contact your local extension 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
Note: This article is not intended to be an endorsement or recommendation for this particular product, but rather a notice of registration activity
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