Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.The southern blight pathogen survives in upper soil layers for many years, increasing the risk for subsequent susceptible crops planted in the same area. ( ). Photo 4 Mani Mua, SPC, Sigatoka Research Station, Fiji. ( ) and from MacKenzie E (2013) Athelia rolfsii: PaDIL - Atlas of Living Australia (undated) Athelia rolfsii (Curzi) C.C.Tu & Kimbr. Information from (and Diagram) Mullen J (2006) Southern blight. Many fungicides have been recommended for the control of Athelia rolfsii, but they are either not available and/or too expensive for use in Pacific island countries. There are no reports of resistant varieties of peanuts, beans and tomatoes, and the many other crops that are susceptible to the disease. Rotate with the crops listed above if land becomes infested with the fungus.Where possible, plough the land deeply, or at least turn over the soil to bury the sclerotia: sclerotia do not survive for more than 45 days if buried 20-30 cm, and burying deeply also speeds up the decay of the fungus in the plant remains.Collect and remove plant debris and burn or bury it deeply.If a mulch is needed, use coconut leaves.
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