Thank you to everyone who joined our webinar. We received some excellent questions and have addressed these below. If you'd like to discuss any of these topics in more detail, please don't hesitate to get in touch.
1. Can Esplanade be mixed with glyphosate?
Absolutely. Esplanade and glyphosate are an excellent combination for bare-ground management, providing control of existing weeds alongside long-lasting residual weed prevention. For difficult woody and broadleaf weeds, Envu also offers Method-240SL. Always follow the relevant product labels.
2. Has Esplanade been trialled in tropical environments such as the Kimberley, and how does it perform during heavy wet-season rainfall?
Esplanade has been extensively studied across a range of environmental conditions. It binds to soil particles, limiting downward movement, although runoff and soil erosion can transport residues during very heavy rainfall. We haven't confirmed Kimberley-specific trial data. Please get in touch if you'd like to explore its suitability for your specific area.
3. How does Esplanade move into the soil profile?
Rainfall/moisture activates Esplanade, moving it into the upper soil layer and keeping it where weed seeds germinate. Deep incorporation isn't necessary, and the label recommends at least 6 mm of rainfall within several weeks of application for maximum activity.
4. Can Esplanade be used in sensitive areas, including coastal environments and tracks?
Potentially, yes. Esplanade is registered for a range of non-crop environments, including roadsides and rights of way. However, proximity to waterways, sensitive vegetation and runoff potential must be considered and applied in accordance to the label. We'd welcome the opportunity to discuss specific locations and suitable application strategies.
5. Is Esplanade a rebrand of Specticle, and are the environmental setbacks the same?
Both products contain indaziflam, but they have different formulations, concentrations and registered uses. Esplanade contains 500 g/L, compared with 200 g/L in Specticle.
Their spray-drift buffers also differ. For Esplanade, at boom heights of 0.5 m or lower, the mandatory downwind buffers are 55 m for sensitive vegetation and 30 m for natural aquatic areas. Always refer to the relevant product label, see our website for more info.
6. Has Australian monitoring assessed indaziflam movement into runoff or groundwater, particularly in high-rainfall areas?
The APVMA evaluated indaziflam's environmental behaviour during registration, including soil mobility, runoff and aquatic risks. Indaziflam has medium-to-low soil mobility, with groundwater leaching not expected under the assessed conditions. However, runoff and sediment transport remain possible. We haven't confirmed specific Australian field-monitoring data for high-rainfall environments.
7. Does Envu offer a turf growth regulator to reduce roadside mowing?
Not currently, but Envu offers a range of vegetation management and turf solutions. Please get in touch to discuss opportunities to improve roadside maintenance efficiency.
8. Could Esplanade move with sediment in drains and remain active downstream?
Yes, Esplanade can move with eroded soil and sediment and may persist after transport. Whether residues remain biologically active depends on their concentration and environmental conditions. Applications near drainage systems and waterways therefore require careful consideration and will be site specific. Keeping in mind the pre emergent mode of action.
9.How does the 55 m sensitive vegetation buffer work on roadsides?
The 55 m buffer applies downwind of the spray application when using a boom height of 0.5 m or lower, rather than in every direction. Wind direction, equipment configuration and type of surrounding vegetation are therefore important when planning roadside applications but is generally not restrictive to use.
10.Would Esplanade control woody weed seedbanks, such as gorse?
Esplanade targets susceptible and labelled germinating seedlings, but gorse is not a specifically registered target weed although we would expect to see an effect. For established woody weeds, Envu offers products such as Method-240SL. We're happy to discuss suitable approaches for specific weed species.
11. Do the sensitive vegetation restrictions also apply to pasture and crops?
It depends, if crops/pastures are sensitive, a site appraisal would be best. Wind direction, application methods and surrounding land use should all be considered. Again, it will depends on the specific vegetation and we would recommend getting in touch to discuss specific site situations if in any doubt.
12. Is the Smart Weeding System available in Australia, and could it be fitted to a Kubota UTV?
We're progressing the introduction of Envu's Smart Weeding System into Australia. Compatibility with smaller platforms such as UTVs would require technical assessment, and pricing is still being developed. We'd welcome enquiries from organisations interested in exploring the technology.
Let's continue the conversation.
Every vegetation management site presents different challenges, and we're always happy to discuss practical solutions.
Whether you're managing roadsides, rail corridors, public spaces or other infrastructure, please reach out to explore how Envu can support your vegetation management programs.
