Insignia® is a strobilurin-based local penetrant fungicide available in a water dispersible granule formulation. Authorised for use on managed amenity turf, Insignia contains, 200 g/l (20%) pyraclostrobin providing both protective and curative action.
Insignia is a local penetrant fungicide for the control of red thread (Laetisaria fuciformis), microdochium patch (Microdochium nivale), and dollar spot (Sclerotinia homoeocarpa) when turf is actively growing.
Advantages of a local penetrant fungicide
The pyraclostrobin within Insignia is a local penetrant fungicide, with translaminar movement through the plant and apoplastic movement between plant cells.
These characteristics provide Insignia with key advantages for a turf manager seeking to protect their grass plant from fungal pathogens. Understanding and thinking about these mechanisms and their advantages, allows the skilled turf manager to apply an active substance to the best effect.
Protection inside the plant - Because a local penetrant translaminar fungicide, such as pyraclostrobin, passes from one side of the leaf to the other, fungitoxic concentrations of the substance within the leaf restrict growth of fungal pathogens inside the plant.
Protection on both sides - Translaminar movement through the leaf builds a concentration of the active substance on the opposite side of the leaf. Supressing existing infections beneath the site of fungicide application.
Protection over time - Pyraclostrobin’s affinity for lipids in the waxy cuticle, allows deposits of the active substance which are accumulated on both side of the leaf blade surface to be retained over time.
These accumulated deposits serve as a weather resistant reservoir, releasing active substance both across the leaf surface and into deeper tissues over several weeks. Thereby protecting leaves and roots against new infections.
Mode of action
Mode of action describes how a fungicide impacts a fungus, The Fungicide Resistance Action Committee (FRAC) currently recognises 13 classifications with pyraclostrobin belonging to Mode of Action Code C: Respiration.
Target site of action and group name
Like many fungicides, pyraclostrobin affects a single site within the fungi; specifically, complex III of the mitochondrial electron transport chain.
By inhibiting this pathway, pyraclostrobin blocks the fungal pathogen’s ability to respire and produce energy through the transfer of electrons within its cells.
Fungicides which affect this process are assigned the code C3 and the name Quinone outside Inhibitors (QoI).
FRAC code
As a QoI fungicide pyraclostrobin falls within Fungicide Resistance Action Committee (FRAC) code 11 for resistance management.
Insignia application:
Obtaining the best results from any Plant Protection Product is enhanced by skilled application, with well calibrated equipment and correct nozzles choices. It is also important to consider the prevailing climate conditions and current stage of disease expression.
By understanding how an active substance functions both inside the plant and against the target pathogen, a turf manager is empowered with the knowledge and ability to obtain the best levels of performance and control.
- The pyraclostrobin within Insignia® performs consistently at cooler temperatures
- Insignia® is suitable for application all year round in temperatures between 5-25°C
- Insignia® is rain fast within 1 hour of application
- Avoid application 48 hours prior to or immediately after mowing