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New records of Chrysomyxa rhododendri on Rhododendron species
Rhododendron hippophaeoides Rh. obtusum
2015/3/2
In the spring of 2008, leaf spot was observed on Rhododendron hippophaeoides and Rhododendron obtusum;
the causal agent was identified as the rust Chrysomyxa rhododendri. The rust occurs primarily i...
First records of the rhododendron leafhopper (Graphocephala fennahi) (Hemiptera: Auchenorrhyncha: Cicadellidae) from the Czech Republic
Homoptera insect invasions ornamental horticulture plant-animal interactions
2015/2/2
In summer and autumn of 2004 the cicadellid leafhopper species Graphocephala fennahi was detected in the Czech Republic for the first time as a new alien insect species feeding on Rhododendron. The sp...