Abstract

About the middle of July, 1932, red galls were discovered on blades of grass in a meadow at Winches Farm, St. Albans, by Mr. W. A. Macdonald, who drew the attention of the writer to the presence of nematodes within them. Subsequent search on this and an adjoining meadow proved that the galls were widely distributed, on the same kind of grass, over the whole area, whilst some days later similar galls were found on a bank by the side of the main road from St. Albans to Hatfield. The grass was identified as Agrostis tenuis Sibth. (Agrostis vulgaris With.), popularly called Fine Bent-grass.

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