New T2 fungicide Aviator 235 Xpro (prothioconazole + bixafen) has gained approval from the Chemicals Regulation Directorate for a label claim for yield increases from ’crop greening’ effects.
The revised label states: Aviator 235 Xpro can increase chlorophyll content/photosynthesis in treated plants, and extend duration of green leaf area retention, for yield increases above that resulting from disease control alone”.
“Despite four very contrasting seasons, starting with the high pressure Septoria year of 2008, to last year’s particularly low disease season, we’ve seen consistent yield increases of around 0.5t/ha from Aviator 235 Xpro over epoxiconazole + strob or boscalid,” product campaign manager Alison Daniels said. “Equally, more recently we have seen similar yield increases over isopyrazam based flag leaf sprays. The non-disease benefits certainly helped to support positive yield responses in crops where disease was negligible at T2.
“This label revision is confirmation that Xpro fungicides have significant physiological benefits in winter wheat, helping growers achieve optimum yield and revenue potential from their crops whatever the season,” Dr Daniels added, saying she believed the Leafshield formulation system in Aviator 235 Xpro also made bixafen and prothioconazole more “biologically available” for crop greening effects.
“Trials have indicated that these effects may derive from improved water use, as well as a greater ability to utilise nitrogen more efficiently.”
For more information visit: www.bayercropscience.co.uk.
