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Botrytis cinerea Pers. in Persoon, Neu. Mag. Bot. 1 127 (1794)
Botrytis cinerea Pers. 1794

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Exotic
Present
New Zealand
Political Region

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Pers.
Pers.
1794
127
Fr.
396
ICN
Botrytis cinerea Pers. 1794
species
Botrytis cinerea

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cinerea

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Botrytis cinerea Pers. 1794

In New Zealand Botrytis cinerea can be of considerable economic importance. Throughout the country high humidities are experienced with moderate temperatures. These conditions are ideal for the growth of this fungus, and in some seasons it may cause considerable damage to horticultural crops. It is reported to be responsible for "damping off" of seedlings and stem end rot of tobacco in Nelson (McLeod and Thomson 1958), and for "damping off" of seedlings and rot of mature heads of lettuce (Brier, Dye, et al. 1957). It has also been found on linen flax (Brien, 1946a), and on lupins in Nelson (Curbs, 1923). Birch (1937b) and Gilmour and Orman (1956) reported B. cinerea damaging seedlings in nursery beds of Arucaria, Cupressus macrocarpa, Eucalyptus spp., Pinus radiata, Pseudotseuga menziesii, Sequoia sempervirens, and Thuja plicata. It is responsible for dieback of Citrus spp., passionfruit, persimmons, crepe myrtle (Lagerstroemia), and Jasminium. Flower heads of begonias, cyclamen, roses, and sweet peas are damaged by the fungus, especially after heavy rain. It is reported as a problem in packing violets for market (Marcussen, 1964). Botrytis is reported to damage flowers of Citrus spp. at Kerikeri (Anon., 1957d).
In glasshouse crops, flowers of cucumbers can be spoilt by Botrytis (Coleman and Gillard, 1958); Newhook and Davison (1956 a, b, c) reported that with the introduction of hormone fruit-setting sprays, B. cinerea became a problem in winter glasshouse crops of tomatoes, and they suggested the incorporation of a fungicide such as thiram with the hormone spray. Botrytis cinerea is reported to cause considerable losses of fruit of strawberries (Anon., 1957b; Wilson, D. W., 1963), gooseberries (Davey 1945), grapes (Berry-Smith, 1959), and currants and raspberries. It is also reported as an important storage rot of apples and pears (Padfield, 1954).
The identity of Sclerotinia fuckeliana, the ascogenous stage of Botrytis cinerea, has been well established (Gregory, 1949). Unfortunately under B. cinerea are placed an aggregation of forms occurring on a very wide range of hosts; some of these forms may ultimately be found to be referable to other species of Sclerotinia or related genera. Therefore the New Zealand records have been listed under Botrytis cinerea.

Botrytis cinerea Pers. 1794

Type: Caulicolous Fungi; Description: Mycelium effuse, grey to greyish brown; on non-suberised branches and stems and on leaves. Sclerotia black, usually about 3 mm in diameter, number, size and shape very variable. Conidiophores tree-like, stipes straight, 2 mm or more long, branching dichotomous or trichotomous forming a rather open head, smooth, clear brown below, paler near the apex, branch ends often hyaline. Conidia ellipsoid to obovoid, 0-septate, 6–18 × 4–11 μm, smooth, hyaline to pale brown, greyish in mass.
Distribution: Northland, Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Taupo, Rangitikei, Wanganui, Wellington, Gisborne, Hawkes Bay, Wairarapa, Nelson, Buller, Westland, Marlborough, North Canterbury, Mid Canterbury, South Canterbury, Central Otago, Dunedin, Southland.; 1st Record: Cunningham (1925a).
Significance: Commonly known as ‘grey mould’, this ubiquitous fungus is of considerable economic importance in horticulture since it damages flowers, leaves, stems, fruit, and other parts of many crop plants (Dingley 1969). In forestry, it is of importance only as a nursery pathogen causing soft rot and dieback of terminal shoots of young seedlings. Major losses are rare, but occur occasionally in glasshouse-grown stock.; Host(s): Actinidia chinensis, A. deliciosa, Adiantum sp., Anigozanthos manglesii, Araucaria araucana, Camellia japonica, Carica × heilbornii nm. pentagona, Chamaecyparis pisifera, Citrus grandis × reticulata, C. limon, C. sinensis, Clematis recta, Cryptomeria japonica, Cupressus macrocarpa, Cydonia oblonga, Cyphomandra betacea, Diospyros kaki, Eucalyptus botryoides, E. globulus subsp. maidenii, E. ovata, E. saligna, Feijoa sellowiana, Forsythia sp., Fuchsia ×hybrida, Hibiscus cannabinus, H. rosa-sinensis, Jasminum mesnyi, Lagerstroemia indica, Leucospermum nutans, L. reflexum, Lupinus angustifolius, Malus ×domestica, Mangifera indica, Passiflora edulis, Pinus brutia, P. muricata, P. nigra subsp. nigra, P. nigra subsp. laricio, P. radiata, Prunus armeniaca, P. persica, Pseudotsuga menziesii, Psidium cattleianum, Pyrus communis, Ribes nigrum, R. rubrum, R. uva-crispa var. sativum, Rosa sp., Rubus fruticosus agg., R. idaeus, Rubus × (hybrid berry), Sequoia sempervirens, Thuja plicata, Vaccinium corymbosum, Vitis labrusca × vinifera, V. vinifera. (Also recorded on numerous herbaceous plants.)

Botrytis cinerea Pers. 1794

Abstract: Botrytis bunch rot (BBR), caused by Botrytis cinerea, degrades wine grapes during ripening, even though infection can occur as early as flowering. Effective BBR management requires knowledge of whether some stages of fruit development are more important than others in relation to infection and BBR severity at harvest. Bunches of Vitis vinifera ‘Sauvignon blanc’ and/or ‘Pinot noir’ were inoculated in two vineyard trials and one glasshouse trial with nitrate non‐utilizing (nit) mutant strains at three phenological stages: early flowering, pre‐bunch closure (PBC) and veraison. Isolates recovered from symptomless berries at veraison and from bunches with symptoms at harvest were screened to measure the incidence of the nit strains used in the inoculations. It was found that latent infections, which resulted in BBR at harvest, could become established at all three phenological stages and no single stage was associated with greater latent incidence or harvest severity than any other stage. It was concluded that a proportion of BBR at harvest resulted from the expression of latent infections that had accumulated throughout the season. However, the time between infection and BBR symptom expression in near‐ripe grape berries was sufficiently short for polycyclic secondary infection to also contribute to epidemic development.

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Botryotinia fuckeliana (de Bary) Whetzel 1945
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel (1945)
Botryotinia fuckeliana (de Bary) Whetzel 1945
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Sclerotinia fuckeliana (de Bary) Fuckel 1870
Botrytis cinerea Pers. 1794

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Botrytis cinerea Pers. 1794
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1cb17fc2-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
21 January 2015
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