Biological control of banana black Sigatoka disease with Trichoderma

Ciência Rural

Hanada, Rogério Eiji²  Coelho Neto, Rosalee Albuquerque²  Cavero, Poholl Adan Sagratzki²  Souza, Jorge Teodoro de¹  Gasparotto, Luadir³ 

[1] Universidade Federal de Lavras (UFLA), Lavras, Brazil;Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil;Embrapa Amazônia Ocidental, Manaus, Brazil

关键词: antagonists;    fungicide sensitivity;    mass production;    Mycosphaerella fijiensisRESUMOA Sigatoka-negra causada por Mycosphaerella fijiensis é a doença mais destrutiva da bananeira em termos mundiais;   

DOI  :  10.1590/0103-8478cr20140436

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Black Sigatoka disease caused by Mycosphaerella fijiensis is the most severe banana disease worldwide. The pathogen is in an invasive phase in Brazil and is already present in most States of the country. The potential of 29 isolates of Trichoderma spp. was studied for the control of black Sigatoka disease under field conditions. Four isolates were able to significantly reduce disease severity and were further tested in a second field experiment. Isolate 2.047 showed the best results in both field experiments and was selected for fungicide sensitivity tests and mass production. This isolate was identified as Trichoderma atroviride by sequencing fragments of the ITS region of the rDNA and tef-1α of the RNA polymerase. Trichoderma atroviride was as effective as the fungicide Azoxystrobin, which is recommended for controlling black Sigatoka. This biocontrol agent has potential to control the disease and may be scaled-up for field applications on rice-based solid fermentation

【 授权许可】

Unknown