Fungicides and silicate clay on the control of antracnosis in yellow passionfruit

Authors

  • André Martins Medeiros Autônomo
  • Luiz Augusto Martins Peruch Estação Experimental de Urussanga

DOI:

https://doi.org/10.5433/1679-0359.2012v33n5p1803

Keywords:

Passiflora edulis f. flavicarpa, Colletotrichum gloeosporioides, Rock powder, Copper oxychloride, Tebuconazol.

Abstract

The anthracnose, caused by Glomerella cingulata (anamorf Colletotrichum gloeosporioides), is the most important fungal disease for aerial parts of yellow passionfruit. However, few studies about anthracnose control in field conditions have been published. The objective of this research was to evaluate silicate clay and fungicides for anthracnose control. Treatments evaluated were: tebuconazole (20g i.a./100L), copper oxychloride (180g i.a./100L), silicate clay (15g /L) and control (untreated plants). The sanity of the plants was evaluated through area under disease progress curve (AUCPD), final severity (SEVF) and disease progress curves. Experimental design was completely randomized with five repetitions. Tebuconazole and silicate clay proportioned significant reduction for AUCPD and SEVF compared to control. Copper oxychloride reduced only SEVF. Treatment with tebuconazole reduced AUCPD and SEVF in 75% and 71%, and silicate clay in 82%, respectively. Copper oxychloride reduced SEVF in 76%. The disease progress curves confirmed results and showed lower growth of anthracnose for tebuconazole and silicate clay. Silicate clay and tebuconazole are efficient to control anthracnose in passionfruit.

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Author Biographies

André Martins Medeiros, Autônomo

Engº Agrº, Autônomo, Tubarão, SC.

Luiz Augusto Martins Peruch, Estação Experimental de Urussanga

Engº Agº, Dr. Pesquisador, Epagri/Estação Experimental de Urussanga, Unibave/Núcleo PACA, Urussanga, SC.

Published

2012-10-30

How to Cite

Medeiros, A. M., & Peruch, L. A. M. (2012). Fungicides and silicate clay on the control of antracnosis in yellow passionfruit. Semina: Ciências Agrárias, 33(5), 1803–1808. https://doi.org/10.5433/1679-0359.2012v33n5p1803

Issue

Section

Communication