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pro vyhledávání: '"Krieng Kanchanawatee"'
Autor:
Kanokwan Dekham, Krieng Kanchanawatee
Publikováno v:
American Journal of Agricultural and Biological Sciences. 15:68-74
Yellow leaf spot disease was observed on Rhynchostylis gigantea orchids on an orchid farm in the Nonthaburi province of Thailand. Symptoms started with yellowish patches lacking definitive borders on the leaves of the orchids. The patches slowly expa