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Journal of Plant Diseases and Protection

, Volume 117, Issue 3, pp 117–121 | Cite as

Screening of fungicides against Corynespora leaf fall disease of rubber under nursery conditions

  • T. H. P. S. FernandoEmail author
  • C. K. Jayasinghe
  • R. L. C. Wijesundera
  • D. Siriwardana
Article

Abstract

Quality planting material is a basic requirement for the increase in productivity levels and one of the key indicators of quality is the health of nursery plants. Corynespora leaf fall disease (CLFD) affects all clones of rubber under nursery condition. In this investigation the most effective treatment to manage CLFD in nurseries was the introduction of overhead shading together with application of the fungicide mancozeb. The fungicide mixture (carbendazim + mancozeb) applied at 7-d intervals, and carbendazim sprayed at 2-week intervals together with shade showed equally good results. Carbendazim (0.5 g l–1) sprayed at 7- or 10-d intervals, the application of other fungicides, mancozeb, metalaxyl 8% + mancozeb 64%, captan and propineb, at 3 g l–1 at 7-d intervals was also effective. Though the systemic fungicide, carbendazim efficiently controlled the disease, tebuconazole and hexaconazole were found to be much less effective.

Key words

cultural practices fungicides Hevea brasiliensis nursery disease management 

Screening von Fungizidwirkungen gegenüber der Corynespora-Blattfallkrankheit in Baumschulen

Zusammenfassung

Qualitativ hochwertiges Pflanzenmaterial ist eine Grundvoraussetzung für Produktivitätssteigerungen und einer der Schlüsselindikatoren für ihre Qualität ist die Gesundheit von Baumschulpflanzen. Die Corynespora-Blattfallkrankheit (CLFD) befällt alle Klone von Gummibäumen in Baumschulen. Diese Untersuchung zeigt, dass die effizienteste Bekämpfungsmaßnahme der CLFD in Baumschulen in der Beschattung in Kombination mit einer Behandlung mit dem Fungizid Mancozeb besteht. Das wöchentlich applizierte Kombinationspräparat aus Carbendazim und Mancozeb sowie zweiwöchentlich ausgebrachtes Carbendazim in Kombination mit einer Beschattung waren ebenso wirksam. Carbendazim (0,5 g l–1), gespritzt in 7- oder 10-Tages-Intervallen sowie Mancozeb, Metalaxyl 8% + Mancozeb 64%, Captan oder Propineb, in einer Konzentration von 3 g l–1 wöchentlich appliziert, waren ebenfalls wirksam. Die Triazolfungizide Tebuconazol und Hexaconazol wirkten dagegen wesentlich schlechter.

Stichwörter

Fungizide Hevea brasiliensis Kulturtechniken Pflanzenschutz in Baumschulen 

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References

  1. Chee, K.H., 1988: Corynespora leaf spot Malaysia, Country report Malaysia, Thailand Sri Lanka and Indonesia. Proceedings of the workshop on Corynespora leaf fall disease of Hevea rubber, Borgor, Indonesia, p. 5.Google Scholar
  2. Darmano, T.W., A. Darussamin, S. Pawirosoemardjo, 1996: Variation among isolates of Corynespora cassiicola associated with Hevea brasiliensis in Indonesia. Proceedings of the workshop on Corynespora leaf fall disease of Hevea rubber, Medan, Indonesia, pp. 79–92.Google Scholar
  3. Hongn, S., A. Ramallo, O. Baino, J.C. Ramallo, 2007: First report of target spot of Vaccinium corymbosum caused by Corynespora cassiicola. Plant Disease 91, 771.CrossRefGoogle Scholar
  4. Idicula, S.P., 2006: Equipment for Corynespora leaf disease control. In: C.K. Jacob (ed.): Corynespora leaf disease of Hevea brasiliensis: Strategies for management. Rubber Research Institute of India, Kottayam, Kerala, India.Google Scholar
  5. Jacob, C.K., 1997: Diseases of potential threat to rubber in India. Planter’s Chron. 92, 451–461.Google Scholar
  6. Jayasinghe, C.K., 2003: Corynespora leaf fall and future of the leading rubber clones in the world. Bull. Rubber Res. Inst. Sri Lanka 44, 5–11.Google Scholar
  7. Jayasinghe, C.K., A.H.R. Jayaratne, 2001: Principles and practices of preventing and controlling rubber diseases in Sri Lanka. Bull. Rubber Res. Inst. Sri Lanka 43, 15–23.Google Scholar
  8. Lam Van Lai, L., M. Tuy, L.H. Ngoc Anh, V.V. Truong, 2007: Early selection of IRRDB’81 X W clones for resistance to Oidium leaf disease. Proceedings of the International Rubber Conference, Siem Reap, Cambodia.Google Scholar
  9. Martini, P., S. Rapetti, G. Bozzano, E. De Rino, L. Repetto, A. Garibaldi, 2007: Corynespora cassiicola parassita del basilico in Liguria. Inf. Fitopatol. 57(9), 31–32.Google Scholar
  10. Newsam, A., 1961: Rubber Research Institute of Malaysia, Pathology Division Report, 63–70.Google Scholar
  11. Oka, K., A. Okubo, M. Kodama, H. Otani, 2006: Detoxification of alpha-tomatine by tomato pathogens Altemaria alternata tomato pathotype and Corynespora cassiicola and its role in infection. J. Gen Plant Pathol. 72, 152–158.CrossRefGoogle Scholar
  12. Pernezny, K., P. Stoffella, J. Collins, A. Carroll, A. Beaney, 2002: Control of target spot of tomato with fungicides, systemic acquired resistance activators, and a biocontrol agent. Plant Prot. Sci. 38, 81–88.Google Scholar
  13. Schmitz, H., 1930: A suggested toximetric method for wood preservatives. Ind. Eng. Chem. Anal. Ed. 2, 361–363.CrossRefGoogle Scholar
  14. Sharma, J.K., C. Mohanan, 1991: In vitro evaluation of fungicides against Cylindrocladium spp. Causing diseases of Eucalyptus in Kerala, India. Eur. J. Forest Pathol. 21, 17–26.CrossRefGoogle Scholar
  15. Da Silva, J.L., D.J. Soares, R.W. Barreto, 2006: Eye-spot of Rudbeckia laciniata caused by Corynespora cassiicola in Brazil. Plant Pathol. 55, 580.CrossRefGoogle Scholar
  16. Silva, W.P.K., E.H. Karunanayake, R.L.C. Wijesundera, U.M.S. Priyanka, 2003: Genetic variation in Corynespora cassiicola: a possible relationship between host origin and virulence. Mycol. Res. 107, 567–571.CrossRefPubMedGoogle Scholar

Copyright information

© Deutsche Phythomedizinische Gesellschaft 2010

Authors and Affiliations

  • T. H. P. S. Fernando
    • 1
    Email author
  • C. K. Jayasinghe
    • 1
  • R. L. C. Wijesundera
    • 2
  • D. Siriwardana
    • 1
  1. 1.Rubber Research Insitute of Sri LankaDartonfieldAgalawattaSri Lanka
  2. 2.University of ColomboColomboSri Lanka

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