TECHNICAL INFORMATION BULLETIN—APPLES
OVERVIEW Excalia™ Fungicide is a 2.84 SC foliar formulation of the active ingredient INDIFLIN™ (inpyrfluxam). Excalia is intended for use on apple scab, powdery mildew and rust diseases. Excalia works quickly to form a complete zone of protection on the leaves for powerful disease protection. EXCALIA TECHNICAL FEATURES—APPLES Superior locally systemic action for complete leaf tissue uptake and distribution across the leaf surface Highly translaminar for fast movement to the opposite side of the leaf for protection of both sides Excellent control of apple scab—even post infection Attacks the scab pathogen at two key points in its life cycle: spore germination and mycelial growth TARGET DISEASES AND RATES/INSTRUCTIONS FOR EXCALIA —APPLES Crop Target Diseases Excalia Use Rate fl oz/A lb AI/A
Apple Scab ( Venturia inaequalis ) Powdery Mildew ( Podosphaera leucotricha ) Cedar-Apple Rust ( Gymnosporangium juniperi-virginianae ) Quince Rust ( Gymnosporangium clavipes )
3–4
0.067–0.089
Apples
Make applications between green tip and petal fall. Do not apply earlier than green tip. Do not make more than 2 applications per year. Retreatment interval: 10 days. PHI: Do not apply after petal fall. For powdery mildew, application must include an adjuvant at the recommended dose. Do not apply with crop oil concentrate. MODE OF ACTION INDIFLIN , the active ingredient in Excalia , acts as a mitochondrial respiration inhibitor and disrupts the energy cycle in fungi by targeting succinate dehydrogenase (complex II). It interferes with spore germination, mycelial growth and spore production. As a foliar application, INDIFLIN has good rainfastness and exhibits translaminar activity, meaning that treatment of the upper (adaxial) surface of a leaf provides protection of the lower (abaxial) surface and vice versa. INDIFLIN is not phloem-mobile and therefore does not move out of a treated leaf to those above and below. INDIFLIN belongs to the succinate dehydrogenase inhibitor (SDHI) class (Group 7) of fungicides as classified by the Fungicide Resistance Action Committee (FRAC). Resistance status: Medium-high risk. 126
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