[phloem necrosis] n (1923): a pathological state in a plant characterized by brown discoloration and disintegration of the phloem; esp: a fatal disease of the American elm caused by a mycoplasma-like organism transmitted by a leafhopper (Scaphoideus luteolus)
PHLOEM NECROSIS
Meaning of PHLOEM NECROSIS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012