Bacterial Disease Efficacy Summary & Literature Review – 2018

Bacterial blight affecting plant leaves

Research Summary Abstract

From 2008 to 2017, 72 products were tested through the IR-4 Program as drench or foliar applications against bacterial pathogens. In addition to research collected through the IR-4 program, this summary includes a review of experiments conducted from 2005 to 2017, mainly on tree crops. Species tested included: Agrobacterium tumefaciens, Erwinia amylovora, E. chrysanthemi, Pseudomonas chicorii, P. marginalis, P. syringae, Pseudomonas sp., Xanthomonas axonopodis, Xanthomonas campestris, and Xanthomonas spp. In general, all products, including the standard copper containing bactericides (Camelot, CuPRO, Cuprofix, Cuprofix MZ, Junction, Kocide, MasterCop, Phyton 27, ReZist, etc.), mancozebs (Dithane, Penncozeb, Protect) and biologicals (Cease, Regalia, Rhapsody and Serenade), provided variable efficacy on these bacterial pathogens. Several new products that are included in the IR-4 Bacterial Efficacy project looked promising based on their efficacy relative to standards. These include Acibenzolar, CG100, Citrex, HM-0736, Kasumin, Regalia, Taegro, Tanos and ZeroTol. Further research is needed to obtain additional efficacy data to recommend actions to register or amend labels for these pests.

Link to Summary: Bacterial Disease Efficacy

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