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Abstract
Field experiments were conducted in the highlands of Vietnam to evaluate the efficacy of a novel picolinamide fungicide, Adavelt™ (florylpicoxamid), and selected strobilurin fungicides against chilli anthracnose. Applications were performed during the fruit development stage at two timings: prior to visible symptom development and after symptom onset (≤1% disease incidence). Florylpicoxamid at 150 g a.i./ha and metominostrobin at 80 g a.i./ha consistently provided effective control of anthracnose during both fruit development and post-harvest storage across application timings. These treatments were followed in efficacy by florylpicoxamid at 125 g a.i./ha, azoxystrobin at 150 g a.i./ha, and picoxystrobin at 150 g a.i./ha. Higher marketable yields were also observed with florylpicoxamid at 150 g a.i./ha (20.41–20.54 tons/ha) and metominostrobin at 80 g a.i./ha (19.70–20.53 tons/ha) compared with other treatments. The results indicate that Adavelt™, containing florylpicoxamid, is a promising option for the management of chilli anthracnose under field conditions.
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