eustoma/necrosis

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A New Natural Host of Lisianthus necrosis virus in Taiwan.

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Lisianthus necrosis virus (LNV) was first identified as a fungus-borne virus that induced systemic necrosis in lisianthus (Eustoma russellianum) in Japan (2). In Taiwan, LNV causes systemic bright yellow chlorosis followed by necrosis in lisianthus (1). The disease was able to spread through the

First Report of Chrysanthemum stem necrosis virus on Russell Prairie Gentian in Brazil.

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In November 2012, plants of Russell prairie gentian (Eustoma grandiflorum, Lisianthus russellianus) were collected from a commercial greenhouse in Atibaia, SP, Brazil, displaying necrotic spots on leaves and necrosis on stems, followed by generalized systemic necrosis. Disease symptom incidence was

Lisianthus Leaf Necrosis: A New Disease of Lisianthus Caused by Iris yellow spot virus.

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Unusual viral symptoms were seen on lisianthus (Eustoma russellianum) grown in the Besor area in Israel. Symptoms included necrotic spots and rings on leaves and systemic necrosis. Preliminary analyses suggested that the disease was caused by a tospovirus. Virus particles typical of a tospovirus

Occurrence of a Severe Strain of Lisianthus necrosis virus in Imported Carnation Seedlings in Taiwan.

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In the 1995 to 1996 season, severe viral disease symptoms were observed on carnations (Dianthus caryophyllus [hybrid Kooij Echo kgr]) propagated from imported seedlings on farms in central Taiwan. Disease symptoms began on upper leaves as numerous yellow spots that enlarged and fused into large

Stem Blight of Eustoma grandiflorum Caused by Sclerotium rolfsii.

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During a 4-week period in May through June 1996, 15% of 50 mature lisianthus (Eustoma grandiflorum) 'Maurine Blue' and 'Maurine White' plants exhibited stem blight in a landscape planting in west-central Florida. Initial disease symptoms included stem necrosis at the soil line, and yellowing and tan

Outbreaks of Stem and Leaf Blight of Eustoma grandiflorum Caused by a Phomopsis sp. in Florida.

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Between November 1997 and May 1998, numerous lisianthus (Eustoma grandiflorum) cultivars exhibited severe stem and leaf blight at two pot-flower production sites in Hillsborough and Dade counties, FL. Blight occurred in mature plants and ranged in incidence from 3 to 5% in Dade County and from 40 to

Identification of Carnation mottle virus from Lisianthus Plants in Taiwan.

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Lisianthus (Eustoma exaltatum (L.) Salisb. ex G. Don subsp. russellianum (Hook.) Kartesz) is an economically important ornamental crop in Taiwan. Over the past decade, nine viruses have been identified or detected in lisianthus including: Bean yellow mosaic virus (BYMV), Lisianthus necrosis virus

Identification of Tomato mosaic virus Infection in Lisianthus in Taiwan.

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In recent years, Lisianthus (Eustoma russellianum (Don.) Griseb) has become popular as potted plants and cut flowers in Taiwan. They are grown in the central and southern regions of the island. Since 1998, diseased plants with mosaic symptoms, followed by necrosis of leaf tissues, were observed in

Characterization of a Virus Infecting Lisianthus.

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A virus was isolated in Taiwan from imported lisianthus (Eustoma russellianum) plants bearing viruslike symptoms and was biologically, physically, and serologically characterized. Purified virions are isometric and measure 32 to 33 nm in diameter. The virus from Taiwan is morphologically similar to

Evaluation of Lisianthus Cultivars for Resistance to Botrytis cinerea.

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Lisianthus (Eustoma grandiflorum) is a high-value cut flower. However, major yield losses often result from gray mold caused by Botrytis cinerea. Various techniques were used to evaluate 12 lisianthus cultivars for resistance B. cinerea. Disease evaluations from detached leaf, leaf disc, cut stem,

Detection of a Severe Isolate of Impatiens Necrotic Spot Virus Infecting Lisianthus in Florida.

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In May 1997, inclusions typical of a tospovirus were visualized by light microscopy in leaf tissue of lisianthus (Eustoma grandiflorum) exhibiting stunting, necrotic ringspots, leaf distortion, and systemic necrosis. Wilting and plant death were the final symptoms observed. Affected plants occurred

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