EFFECTIVENESS OF REDUCED-RISK AND BIOCONTROL PRODUCTS IN CONTROLLING FIRE ON LILIES
Fungicides are an important tool used in the management of Botrytis elliptica on lilies. During 2011, 2012 and 2013, trials were conducted to determine the effectiveness of several reduced-risk and biocontrol fungicides in controlling B. elliptica on field-grown Elite or London Asiatic hybrid lilies. A total of 13 fungicides and an untreated check were included in these trials. Fungicides included iprodione (Chipco 26019 N/G), chlorothalonil (Daconil Weather Stik), fluoxastrobin (Disarm 480 SC), fludioxonil (Medallion 50WP), cyprodinil + fludioxonil (Palladium 62.5WG), pyraclostrobin + boscalid (Pageant 38 WG), thyme oil (Proud 3), extract of Reynoutria sachalinensis (Regalia), tebuconazole (Torque 3.6SC), metconazole (Tourney 50WDG), triticonazole (Trinity 2SC), fenpyrazamine (V10135 SC), and hydrogen dioxide + peroxyacetic acid (ZeroTol 2.0). Treatments were applied on 7, 10, or 14 day intervals with a CO2 sprayer equipped with an 8002 LP TEE-Jet nozzle at 1.1 kg/cm2 in the equivalent of 935.4 liters of water/ha. Applications were made during a 2 to 3 month period during the growing season and the experimental design was a randomized complete block with each treatment applied to a 0.9 m long section of row in each of five blocks. Results from these trials indicated that three fungicides, pyraclostrobin + boscalid, fludioxonil, and cyprodinil + fludioxonil, consistently reduced disease development. Of these, pyraclostrobin + boscalid was the most effective. Applications of the other products included in the trials were ineffective or inconsistent in controlling B. elliptica on lilies.
Chastagner, G.A. and DeBauw, A. (2014). EFFECTIVENESS OF REDUCED-RISK AND BIOCONTROL PRODUCTS IN CONTROLLING FIRE ON LILIES. Acta Hortic. 1027, 231-239
Botrytis elliptica, disease management