Rolim, Jessica Mengue  Walker, Clair  Mezzomo, Ricardo  Muniz, Marlove Fátima  <br/><br/>
Antagonism and Effect of Volatile Metabolites of Trichoderma spp. on Cladosporium spp. 

<br/><br/> Publicação on-line; 26 ref.; 5 tables; 3 illus.; Summary (En) 
<br/><br/> <br/><br/>ABSTRACT<br/><br/>Pecan is susceptible to the occurrence of diseases capable of harming its development, and leaf<br/>spot caused by Cladosporium spp is among them. Therefore, the objective of this work was to<br/>analyze the potential antagonist and in vitro effect of volatile metabolites of Trichodermaspp.<br/>On Cladosporium spp. isolated from pecan leaf spots. Three Cladosporium spp. isolates and two<br/>commercial products based on Trichodermaspp. were used, as well as an isolate of the same<br/>genus provided by the ‘ElocyMinussi’ Laboratory of Phytopathology at UFSM. Cladosporium spp.<br/>mycelial growth was monitored in order to evaluate the morphological characteristics of the<br/>pathogen. The use of Trichoderma spp. as biocontrol was assessed through dual culture tests<br/>and production of volatile metabolites. Trichoderma spp. showed positive results in inhibiting<br/>the growth of Cladosporium spp., thereby presenting potential to be used as a biocontrol agent.<br/><br/>Keywords: biological control, dual culture tests, antibiosis, biocontrol agents. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NOZ PECA<br/>CONTROLE BIOLÓGICO<br/>ANTAGONISMO<br/>FUNGO<br/>TRICHODERMA