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Environmental factors that modulate the release and transport of airborne urediniospores Hemileia vastatrix (Berk. & Broome) in coffee crops in Veracruz México
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Environmental factors that modulate the release and transport of airborne urediniospores Hemileia vastatrix (Berk. & Broome) in coffee crops in Veracruz México
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Environmental factors that modulate the release and transport of airborne urediniospores Hemileia vastatrix (Berk. & Broome) in coffee crops in Veracruz México
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Journal Article
Environmental factors that modulate the release and transport of airborne urediniospores Hemileia vastatrix (Berk. & Broome) in coffee crops in Veracruz México
2022
Overview
The coffee leaf rust,
Hemileia vastatrix
, is the most destructive coffee-growing disease and the most important economically. More aggressive outbreaks of the disease were recently reported worldwide, including in Mexico, where coffee production showed a 40% decrease. This work aimed to determine the environmental conditions that favor release and air transport of the
H. vastatrix
urediniospores in coffee crops in Veracruz. The monitoring of airborne coffee leaf rust urediniospores was performed using three types of aerobiological traps at different heights: Hirst Spore Trap (HST, 1.5 m), Passive Spore Trap (PST 1.5, 3, 6, and 9 m), and Sedimentation Spore Sampler (SSS 1 m) from January 2014 to October 2015, in two plots in Veracruz, Mexico. The airborne urediniospores counts exhibited a bimodal distribution. Low concentrations that increase over time are evident from January to April, decreasing abruptly in May and June, only to rise again in August, reaching the highest record for airborne urediniospores during the mid-summer drought phenomenon. Dispersal of coffee rust urediniospores is mainly influenced by temperature, rain, wind, and humidity in leaves. They can reach heights in the air up to 9 m (above the canopy) in shade coffee crops. The dispersal of pathogens in the atmosphere comprises complex processes interconnected; their knowledge allows better comprehensive management of them.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
