grey patches - helelaiksus, sptorioos, taimehaigus, mida tekitavad Septoria seeneperekonna liigid. Taime lehtedele ja võrsetele ilmuvad väikesed tumeda äärisega laigud, mis muutuvad hiljem hallikakas või valkjaks ja mille keskele tekivad mustad täpid.
Grey patches, russeting or scabs, of an aggregate area exceeding 6 mm in diameter
This defect consists of a hard thickening of the skin, making patches of various shapes of an aggregate area not exceeding 20 mm in diameter.
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