![]() A standard recommendation for managing resistance is to use multiple fungicides that have not yet been affected by resistance and that are chemically different (in different FRAC groups), applied in alternation or combination in an integrated management program with cultural management practices. No Long Island use.Ĭonventional fungicides are generally at risk for resistance developing to them in pathogens because of their targeted activity. Can be applied as soil drench at planting and through drip irrigation. Ridomil Gold Copper and Ridomil Gold Bravo are not labeled for Phytophthora. Resistance detected commonly following years of use on a farm. Can be applied as directed soil spray and through drip irrigation. Several phosphorous acid fungicides, including K-Phite and Rampart, also can be applied through drip irrigation after planting. Rampart can be applied as a root dip to pepper and eggplant. ProPhyt is labeled for application to cucurbit and pepper seedlings before transplanting (1 pint/25 gal water) and in furrow during seeding (5 fl oz/1000 row ft). Check the label carefully as use directions vary a lot. There are several products not all labeled for soil applications. Note that Orondis Ultra cannot be applied subsequently. Can be applied once either in furrow at planting, in transplant water, or through drip irrigation. first application may be made at 1.5 pt/A as a banded soil drench at transplant or when the plants have the first true leaves. Revus, Tanos, and most phosphorous acid fungicides.Ĭonventional fungicides that can be applied directly to soil: Not Classified for “restricted use” in New York: Presidio, Zampro, and some phosphorous acid fungicides. Additional information about these fungicidesĬlassified for “restricted use” in New York: Zampro is not permitted used on Long Island, NY. When Zampro is applied 3 times (label max), Forum can be applied twice. Using both in a fungicide program necessitates using less than the max of each listed in the table. When Orondis Ultra is applied 4 times at 6 fl oz/A, then Revus can be applied once.Ĥ Zampro and Forum both have dimethomorph. When Orondis Ultra is applied at highest label rate (8 fl oz/A), then max number applications of Orondis Ultra plus Revus is 4 total. ![]() ![]() See also next column.ģOrondis Ultra and Revus have an active ingredient in common (mandipropamid). No sequential applications permitted with Presidio (recent label change), Revus and Tanos.Ģ Max refers to the maximum number of applications that can be applied to a cucurbit crop. So if Ranman is applied 3 times in a row, the maximum allowed, the next 3 applications must be different chemistry. Switch for at least as many applications this is a stated requirement on the Ranman label. This restriction is for resistance management, which is a major concern with this pathogen. Recommend applied at low rate mixed with another fungicideĢ(ee) in NY to use tank-mixed with other fungicides: Champ, Champion, Cuprofix Disperss, Kocideġ Maximum number of sequential applications that can be made before must switch to other fungicide(s) in different FRAC group. Resistance detected where extensively used Must be tank-mixed with contact fungicide (copper) Use either Orondis Gold applied to soil or Orondis Ultra applied to foliage. ![]()
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