detail of olive leaves infected by fungus, its attack causes important defoliations affecting the tree and the production

agents agriculture andalusia bacterium branch chlorosis countryside damage disease dry ebola economic efsa farm farming fastidiosa field floema fruit garden green grove harvest health homalodisca illness infected insects insolita investigation jaen leaf leaves natural nature olive organic phytopathogenic pierces plague plant plantation proteobacteria remedy research sheets spain spread strain symptoms taxonomy the transmitting tree vitripennis xanthomonadaceae xanthomonadales xylella