Ohio Florists Assoc Bull 675:6–8Īus dem Siepen M, Pohl JO, Koo BJ, Wege C, Jeske H (2005) Poinsettia latent virus is not a cryptic virus, but a natural polerovirus–sobemovirus hybrid. Īugsburger ND, Powell CC (1986) Correct greenhouse ventilation: the basics of excessive humidity control. Agriculture and Horticulture Development Board. PPM point 8.8Ītwood J (2013) Black root rot in containerised subjects – chemical and biological options for control. Īnonymous (2004) European and Mediterranean Plant Protection Organization. on Euphorbia pulcherrima: Addition to the EPPO Alert List. Plant Pathol Bull 1:166–173Īnonymous (2002) New Oidium sp. Phytopathology 87:S1Īnn P-J (1992) New diseases and records of some important flower plants caused by Phytophthora parasitica in Taiwan. KeywordsĪbad JA, Randall C, Moyer JW (1997) Genomic diversity and molecular characterization of poinsettia phytoplasmas. Poinsettia diseases may be managed through clean stock production coupled with integrated pest management strategies in greenhouses where the crops are propagated and finished for sale.
African violet treating botrytis blight free#
Poinsettia mosaic virus (PMV) has been associated with minor problems, and a phytoplasmal infection has contributed free branching for more attractive plants. Being a woody plant, poinsettias are not prone to tospoviruses, but they are susceptible to a wealth of foliar problems ( Botrytis blight, powdery mildew, scab, Alternaria leaf spot, Xanthomonas leaf spot, and anthracnose) as well as many common root and stem diseases ( Pythium and Phytophthora root rots, Thielaviopsis root rot) as well as occasional Fusarium or Rhizoctonia stem problems. Because it is vegetatively propagated and is so widely grown, poinsettia diseases are relatively well known and well studied.
Klotsch, is a major flowering potted plant for winter holidays.
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