Dedicate FORTE Stressgard From Envu Now Registered For Take-All Patch
The APVMA has recently confirmed the registration of a label extension to Dedicate FORTE Stressgard Turf Fungicide to include Take-All Patch (Gaeumannomyces spp.)
Jyri Kaapro, Senior Market Development Specialist (Turf & Ornamentals) at Envu, said, “Gaeumannomyces species continue to be one of the most challenging Ectotrophic root-infecting fungi (ERI fungi) for turfgrass managers to manage. We therefore invested in efficacy trial work with Dedicate FORTE Stressgard to ensure our turf managers have a new, powerful option to control this disease.”
Please see below for some guidance on the management of Take-All Patch, including instructions for using Dedicate® FORTE Stressgard.
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Take-All diseases of turfgrass are caused by Gaeumannomyces fungal species. Cool and warm season turfgrasses can both be affected. Above ground injury symptoms are due to root infection below ground, because the fungus disrupts vascular tissue. Roots of infected grass are colonized by dark brown to black ectotrophic runner hyphae.
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Cultural practices that are successful in reducing take-all rely on maintaining soil pH between 5.5-6.0. Take-All severity can be reduced by including manganese in nutrition programmes. Fungicides are often used in conjunction with cultural strategies.
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Dedicate FORTE Stressgard is an excellent option for preventative control, and should be applied in the spring and autumn when the fungus is active. Make two applications 28 days apart prior to conditions becoming favourable for disease development.
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When applying to target Take-All Patch (or other rootzone diseases such as Fairy Ring or Brown Patch) use a high-water volume and most importantly, apply sufficient irrigation as soon as possible after application to wash the product into the root zone. As Dedicate FORTE Stressgard is an acropetal systemic fungicide (moves up in the plant) you will also see protection of above ground plant parts from fungal organisms once the active has moved up from the plant roots to the leaves and stems.
Lastly, one excellent feature of Dedicate FORTE Stressgard to be aware of is that it is rainfast once dry, which is approximately 30 mins depending on weather conditions. This makes Dedicate FORTE Stressgard an excellent choice of fungicide when targeting above ground diseases like Dollar Spot and Anthracnose especially when wet weather is frequently occurring.
Until updated labels appear on the physical product, the newly registered product label can be downloaded here.
To find out more information, reach out to our team.
Always read the label before use.
