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    Rough bluegrass [Poa trivialis]

    A perennial grass weed which can reach a height of 120 cm. Prefers nutrient-rich, fresh to moist sandy loam soils.

    overview

    Rough bluegrass - image 1

    Rough bluegrass - image 1

    Rough bluegrass - image 2

    Rough bluegrass - image 3

    Rough bluegrass - image 4

    Pest Profile

    • About the pest

      Description

      The young plant can be recognized by the thin, erect leaves (Picture 1). The plant tends to have dense tillering. The leaf blade is smooth and terminates in a tip. The underside is glossy with a distinct double ridge. The ligules are long, smooth and sparsely serrated. Without auricles. The rough slender stem grows to around 50cms, the panicle has 5-6 branches with small multiflorous spikelets (Picture 3). The glume is sharply keeled, not hairy (Picture 4).

      Synonym

      Rough stalked meadowgrass

      Symptoms & Diagnosis

      Occurence

      Winter wheat, winter rapeseed.