Abstract
Pre-harvest fungicidal treatments aimed at reducing inoculum levels in the field include copper oxychloride and benomyl. Pre-harvest applications of benomyl are currently restricted if used on fruit destined for certain export markets. Isolates of Colletotrichum gloeosporioides collected during a three-year market survey were used to determine the incidence of resistance to benomyl, thiabendazole and prochloraz using an in vitro assay. A total of 17.7% of all isolates tested were resistant to benomyl, of which 8.5% were highly and 9.2% moderately resistant. Isolates from certain production areas were less sensitive to benomyl and thiabendazole, and mango isolates were generally more sensitive than avocado isolates. No isolates were resistant to thiabendazole or prochloraz.
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References
Agostini JP, Timmer LW and Mitchell DJ (1992) Morphological and pathological characteristics of strains of C. gloeosporioides from citrus. Phytopathology 82: 1377–1382
Anderson MD (1986) Omega (prochloraz), a fungicide for postharvest control of anthracnose, the Dothiorella/Colletotrichum complex and stem-end rot in avocados. South African Avocado Growers' Association Yearbook 9: 27–30
Bernstein B, Zehr E, Dean RA and Shabi, E (1995) Characteristics of Colletotrichum from peach, apple, pecan and other hosts. Plant Disease 79: 478–482
Boshoff M, Slabbert MJ and Korsten L (1995) Effect of detergent sanitisers on post-harvest diseases of avocado. South African Avocado Growers' Association Yearbook 18: 96–98
Brown AE, Sreenivasaprasad S and Timmer LW (1996) Molecular characterisation of slow-growing orange and key lime anthracnose strains of Colletotrichum from citrus as C. acutatum. Phytopathology 86: 523–527
Bus VG, Bongers AJ and Risse LA (1991) Occurrence of Penicillium digitatum and P. italicum resistant to benomyl, thiabendazole, and imazalil of citrus fruit from different geographic origins. Plant Disease 75: 1098–1100
Darvas JM, Kotzé JM and Wehner FC (1987) Effect of treatment after picking on the incidence of post-harvest fruit diseases of avocado. Phytophylactica 22: 93–96
Davis RD, Boland RM and Howitt CJ (1992) Colony descriptions, conidium morphology, and the effect of temperature on colony growth of Colletotrichum gloeosporioides isolated from Stylosanthes spp. growing in several countries. Mycological Research 96: 128–134
Davidse LC (1973) Antimitotic activity of methyl benzimidazole-2-yl carbamate (MBC) in Aspergillus nidulans. Pesticide Biochemistry and Physiology 3: 317–325
De Lapeyre de Bellaire L and Dubois C (1997) Distribution of thiabendazole resistant Colletotrichum musae isolates from Guadeloupe banana plantations. Plant Disease 81: 1378–1383
Delp CJ (1980) Coping with resistance to disease control agents. Plant Disease 64: 654–657
Dodd JC, Estrada A and Jeger MJ (1992) Epidemiology of Colletotrichum gloeosporioides in the tropics. In: Bailey, J.A. and Jeger, M.J. (eds.) Colletotrichum: biology, pathology and control. (pp 308–323) CAB International, Wallingford
Donkin DJ and Oosthuyse SA (1996) Quality evaluations of sea-exported South African mangos in Europe during the 1995/96 season. South African Mango Growers' Association Yearbook 16, 1–5
Farungsang U and Farungsang N (1992) Benomyl resistance of Colletotrichum spp. associated with rambutan and mango fruit rot in Thailand. Acta Horticulturae 321: 891–897
Freeman S, Katan T and Shabi E (1998) Characterisation of Colletotrichum species responsible for anthracnose diseases of various fruits. Plant Disease 82: 596–605
Fujimura M, Oeda K, Inoue H and Kato T (1992) A single amino acid substitution of the beta-tubulin gene of Neurospora confers both carbendazim resistance and diethofencarb sensitivity. Current Genetics 21: 399–404
Hassal A (1982) The Chemistry of Pesticides. MacMillan Press, New York
Jeffries P, Dodd JC, Jeger MJ and Plumbley RA (1990) The biology and control of Colletotrichum species on tropical fruit crops. Plant Pathology 39: 343–366
Johnson KB, Sawyer TL and Powelson ML (1994) Frequency of benzimidazole-and dicarboximide-resistant strains of Botrytis cinerea in western Oregon small fruit and snap bean plantings. Plant Disease 78: 572–577
Katan T, Shabi E and Gilpatrick JD (1983) Genetics of resistance to benomyl in Venturia inaequalis isolates from Israel and New York. Phytopathology 73: 600–603
Keinath AP and Zitter TA (1998) Resistance to benomyl and thiophanate-methyl in Didymella bryoniae from South Carolina and New York. Plant Disease 82: 479–484
Koenraadt H and Jones AL (1992) The use of allele-specific oligonucleotide probes to characterise resistance to benomyl in field strains of Venturia inaequalis. Phytopathology 82: 1354–1358
Korsten L, Towsen E and Claasens V (1998) Evaluation of avogreen as post-harvest treatment for controlling anthracnose and SE on avocado fruit. South African Avocado Growers' Association Yearbook 21: 83–87
Leroux P and Clerjeau M (1985) Resistance of Botrytis cinerea Pers. and Plasmopara viticola (Berk. & Curt.) Berl. and de Toni to fungicides in French vineyards. Crop Protection 4: 137–160
Liyanage HD, McMillan RT and Kistler HC (1992) Two genetically distinct populations of Colletotrichum gloeosporioides from citrus. Phytopathology 82: 1371–1376
Lonsdale JH (1992a) Evaluation of systemic fungicides as pre-harvest treatments of avocados. South African Avocado Growers' Association Yearbook 15: 35–38
Lonsdale JH (1992b) In search of an effective postharvest treatment for the control of postharvest diseases of mangos. South African Mango Growers' Association Yearbook 12: 32–36
Lonsdale JH and Kotzé JM (1989) Chemical control of preand post-harvest diseases of avocados. South African Avocado Growers' Association Yearbook 12: 68–70
Moorman GW and Lease RJ (1992) Benzimidazole-and dicarboximide-resistant Botrytis cinerea from Pennsylvania greenhouses. Plant Disease 76: 477–480
Murray TD (1996) Resistance to benzimidazole fungicides in the cereal eyespot pathogen, Pseudocercosporella herpotrichoides, in the pacific Northwest 1984–1990. Plant Disease 80: 19–23
Nel A, Krause M, Ramautar N and Van Zyl K (1999) A guide for the control of plant diseases. Directorate: Agricultural Production Outputs, National Department of Agriculture, Pretoria, Republic of South Africa
Russell PE (1995) Fungicide resistance: occurrence and management. Journal of Agricultural Sciences 124: 317–323
Saaiman WC (1995) Evaluation of fungicides applied pre-harvest on the incidence of post-harvest diseases. South African Mango Growers' Association Yearbook 15: 80–83
Sholberg PL, Yorston JM and Warnock D (1989) Resistance of Venturia inaequalis to benomyl and dodine in British Columbia, Canada. Plant Disease 73: 667–669
Sreenivasaprasad S, Brown AE and Mills PR (1993) Coffee berry disease pathogen in Africa: genetic structure and relationship to the group species Colletotrichum gloeosporioides. Mycological Research 97: 995–1000
Swart GM (1999) Comparative study of Colletotrichum gloeosporioides from avocado and mango. PhD Thesis, University of Pretoria
Vermeulen JB, Krause M, Nel A, Hollings N and Greyling J (1992) A guide to the use of pesticides and fungicides in the Republic of South Africa. Directorate of Livestock Improvement and Agricultural Resources, Pretoria
Ziogas BN and Girgis SB (1993) Cross-resistance relationships between benzimidazole fungicides and diethofencarb in Botrytis cinerea and their genetical basis in Ustilago maydis. Pesticide Science 39: 199–205
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Sanders, G.M., Korsten, L. & Wehner, F. Survey of Fungicide Sensitivity in Colletotrichum gloeosporioides from Different Avocado and Mango Production Areas in South Africa. European Journal of Plant Pathology 106, 745–752 (2000). https://doi.org/10.1023/A:1026523021296
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DOI: https://doi.org/10.1023/A:1026523021296