Characteristics of the Fusicoccum Anamorph of Botryosphaeria ribis, a Potential Biological Control Agent for Melaleuca quinquenervia in South Florida

Mycologia ◽  
1996 ◽  
Vol 88 (2) ◽  
pp. 239 ◽  
Author(s):  
Min B. Rayachhetry ◽  
George M. Blakeslee ◽  
Roger S. Webb ◽  
James W. Kimbrough
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Control Agent ◽  
South Florida ◽  
Melaleuca Quinquenervia

The molecular basis of host plant selection in Melaleuca quinquenervia by a successful biological control agent

2010 ◽  
Vol 71 (11-12) ◽  
pp. 1237-1244 ◽  
Author(s):  
Amanda Padovan ◽  
Andras Keszei ◽  
Tobias G. Köllner ◽  
Jörg Degenhardt ◽  
William J. Foley
Keyword(s):  
Biological Control ◽  
Host Plant ◽  
Molecular Basis ◽  
Biological Control Agent ◽  
Control Agent ◽  
Host Plant Selection ◽  
Melaleuca Quinquenervia ◽  
Plant Selection

Predisposition of Melaleuca (Melaleuca quinquenervia) to Invasion by the Potential Biological Control Agent Botryosphaeria ribis

Weed Science ◽  
1996 ◽  
Vol 44 (3) ◽  
pp. 603-608 ◽  
Author(s):  
Min B. Rayachhetry ◽  
George M. Blakeslee ◽  
Ted D. Center
Keyword(s):  
Biological Control ◽  
Low Temperature ◽  
Tree Mortality ◽  
Biological Control Agent ◽  
Control Agent ◽  
Melaleuca Quinquenervia ◽  
Xylem Water Potential ◽  
Simulated Drought ◽  
Canker Development ◽  
Low Temperature Treatments

Enhancement of the canker causing ability of Botryosphaeria ribis on melaleuca was studied with respect to stress from simulated drought, low temperature, and defoliation treatments. Low xylem water potential was related to increased level of canker development and subsequent tree mortality. Canker development was enhanced by low temperature treatments with alternating exposure to 6 C for 3 d followed by 4 d at 30 (±5) C for 8 wk. Partial defoliation did not affect canker development but complete defoliation of B. ribis-inoculated ramets resulted in tree mortality within 4 wk. Callusing of melaleuca wounds was either reduced or prevented in stressed trees. These observations suggest that stress induced on the tree enhances the tree-killing efficacy of this fungus.

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