For each pathogen, an “A” and “B” team list has been compiled. The A team products are those suggested for crops that are more susceptible to that specific disease and should be used on a regular preventative basis. MSU also recommends using the A team products if disease has been detected on the crop in question.
B team products are suggested for rotating into your spray program when disease pressure is low or the crop is not highly susceptible to that disease. Always follow label directions when applying any pesticide.
Michigan State University Extension states that accurate disease identification is critical for any successful disease management program. To determine which pathogen you are dealing with, MSU recommends having the infected plant tissue tested by a diagnostic laboratory such as MSU Diagnostic Services.
View the recommendations below, or download a printable PDF: Greenhouse Disease Management 2016 Season
Botrytis
- “A” Team. Daconil (chlorothalonil), Decree (fenhexamid), Iprodione SPC/Chipco 26019/26 GT (iprodione), Pageant Intrinsic (pyraclostrobin + boscalid), Affirm WDG (polyoxin D zinc salt)
- “B” Team. (Not recommended when disease pressure is high). Compass (trifloxystrobin), Heritage (azoxystrobin), Insignia (pyraclostrobin), Palladium (cyprodinil + fludioxonil)
- “A” Team. Eagle 20EW (myclobutanil), Terraguard SC (triflumizole), Tourney (metconazole)
- “A-/B+” Team. Heritage (azoxystrobin), Compass (trifloxystrobin), Insignia (pyraclostrobin), Strike (triadimefon), Strike Plus (trifloxystrobin + triadimefon), Pageant Intrinsic (pyraclostrobin + boscalid), Palladium WDG (fludioxonil + cyprodinil)
- “A+” Team. Subdue MAXX (mefenoxam), Adorn (fluopicolide), Segovis (oxathiapiprolin)
- “A” Team. Stature DM (dimethomorph), Micora (mandipropamid), Orvego (ametoctradin + dimethomorph), Segway SC (cyazofamid), FenStop (fenamidone).
- “B” Team. Alude/OxiPhos/Vital (phosphorous acid products), Heritage 50WG (azoxystrobin), Insignia (pyraclostrobin), Protect DF (mancozeb), Compass (trifloxystrobin)
- “A” Team. Subdue MAXX (mefenoxam), Adorn (fluopicolide), Micora (mandipropamid), Segovis (oxathiapiprolin)
- “B” Team. FenStop (fenamidone), Alude/OxiPhos/Vital (phosphorous acid products), Captan (captan), Aliette WDG (fosetyl-al), Segway SC (cyazofamid), Truban WP/Terrazole L (etridiazole), Orvego (ametoctradin + dimethomorph), Stature DM (dimethomorph)
- “A” Team. Truban WP/Terrazole L (etridiazole), Subdue MAXX (mefenoxam) [Watch for pathogen resistance]
- “B/B-“ Team. Captan (captan), FenStop SC (fenamidone), Heritage 50WDG (azoxystrobin), Empress Intrinsic Brand Fungicide (pyraclostrobin), Segway SC (cyazofamid), Alude/OxiPhos/Vital (phosphorous acid products)
- “A” Team. Medallion (fludioxonil), Terraclor 400 (pentachloronitrobenzene), Affirm WDG (polyoxin D zinc salt), Pageant Intrinsic (pyraclostrobin + boscalid), Tourney (metconazole), Empress Intrinsic Brand Fungicide (pyraclostrobin)
- “B+” Team. 3336/OHP 6672 (thiophanate-methyl), Captan (captan), Heritage 50WG (azoxystrobin)
- Recommendations [Use high labeled rates]: 3336/OHP 6672 (thiophanate-methyl), Terraguard SC /LS (triflumizole), Medallion (fludioxonil)
- Camelot (copper salts of fatty and rosin acids), Champ, CuPRO (copper hydroxide), Phyton 27 (copper sulphate pentahydrate), Nordox 75WG (cuprous oxide), C-O-C-S (copper oxychloride + copper sulfate), Copper-Count-N [copper, bis(acetato-O)diammine]
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