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multilingual compendium of plant diseases

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173<br />

Oryza sativa ( Oryza spp. ) + Helminthosporium oryzae (Cochliobolus miyabeanus (Ito & Kur.)<br />

Drechsler ex Dastur) =<br />

ENGLISH Brown Spot<br />

FRENCH Helminthosporiose du Riz, Brfllure<br />

SPANISH Mancha carmelita, Tiz6n de la hoja, Mancha caf6 del arroz, Mancha parda<br />

PORTUGUESE Helminthosporiose, Mancha parda<br />

ITALIAN Elmintosporiosi del riso<br />

RUSSIAN nTHZCTOCTLrjia3X0Ro , rejmMHToCno0pXo3 6ypb12<br />

SCANDINAVIAN<br />

GERMAN ltelminthosporium-Fus skrankheit, Helminthosporiose<br />

DUTCH<br />

HUNGARIAN<br />

BULGARIAN<br />

TURKISH Celtik kahverengi yaprak lekesi<br />

ARABIC Takhtit .<br />

PERSIAN Laktht gihvtyt brtnj .51.do,. 'J<br />

BURMESE<br />

THAI Bi-Jut-Si-Numtan *<br />

NEPALI Dhan Ko Khairo-thople pat qTI4 " t1T'u W'?', Dhan Ka khaira rog 'qTFT kT Tft<br />

HINDI Helminthosporium Angmaari V A<br />

VIETNAMESE 436m nnu<br />

CHINESE Shogi d w hd md ybh ku bIng 7ANM 0 A M # R<br />

JAPANESE Gomahagare-by5 Z I I-V<br />

Seedling blight occurs before or after emergence. Brown leaf spots develop on the less severely<br />

infected seedlings; circular to elongate brown leaf spots are first small without marked<br />

watersoaking and later spread with reddish-brown margins to gray centers. On severely infected<br />

<strong>plant</strong>s, the leaves dry out before tne <strong>plant</strong>s are mature. Lesions also occur on the<br />

stems. These are brown necrotic areas which result in the productiun <strong>of</strong> shriveled grain.<br />

Necrosis del <strong>plant</strong>ulas occurre o ante o post emergentia. Maculas foliar brun se forma<br />

n le <strong>plant</strong>ulas minus severmente infectate. Maculas foliar, o circular o elongate, es al initio<br />

minute sin esser aquose; plus tarde illos se extende con margines brun-rubiette e centros gris.<br />

In <strong>plant</strong>as severmente infectate, le folios se desicca ante que le <strong>plant</strong>as es matur. Lesiones<br />

occurre anque inle pedunculos. Istos es areas necrotic brun le quales face le granos crispar se.<br />

La brtilure des semis survient avant ou apr~s l'6mergence. Des taches brunes se forment<br />

sur les feuilles des <strong>plant</strong>ules les moins gravement infectdes; au d~but, ces taches brunes, circulaires<br />

h allong6es, sont petites et ne paraissent gu~re ddtrempegs, mais, plus tard, elles<br />

s agrandissent, ont des marges brun rouge~tre et un centre gris. Sur les <strong>plant</strong>es gravement<br />

attaquees, les feuilles se wi, 3sechent avant la maturite des <strong>plant</strong>es. I1 se produit aussi<br />

des lesions sur les tiges. Ces lesions forment des aires necrotiques brunes qui ne permettent<br />

d'obtenir qu'un grain ratatine.<br />

El tizdn de las pl~ntulas aparece antes o despuds dc la emergencia. Las manchas foliares de<br />

color caf4 se desarrollan en las plntulas menos severamente infectadas; las manchas foliares<br />

circulares o alargadas, de color cafe, son pequefias al principio sin empapamiento de agua<br />

marcado y luego crecen con mirgenes de color caf4-rojizo a centros grises. En las <strong>plant</strong>as<br />

severamente infectadas, las hojas se secan antes de que las <strong>plant</strong>as maduren. Las lesiones<br />

aparecen tambi~n en los tallos. Estas son 6reas de color cafe, necr6ticas, las cu6les dan<br />

como resultado granos arrugados.<br />

DISTRIBUTION: Af., A., Aust., Eur., N.A., C. A., S.A.

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