Characterization of irrigator emitter to be used as solid set canopy delivery system: which is best for which role in the vineyard?

Abstract Background The timely and flexible treatment of solid set canopy delivery systems (SSCDS) is expanding. Laboratory and field trials were conducted to evaluate the performance of three different irrigators (Pulsar™ system and nozzle combination), typically used in anti‐frost and irrigation in vineyards/apple orchards, for plant protection product (PPP) delivery in a Guyot‐trained trellised vineyard. Results Results showed that irrigator setups perform best when matched to the task—flat fan emitters for horizontal spray application (canopy top) and circular emitters for middle and low canopy application. A combination configuration of a double‐sided flat fan and circular emitter system was indicated as the best option for homogenous coverage and minimal ground losses. Conclusion The tested emitters hold promise for SSCDS delivery of PPPs in vineyards. Further validation of the alternative use of this technology is warranted. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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