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    Annual ryegrass [Lolium multiflorum]

    Annual to perennial, non-hardy grass propagating via seeds. Used as forage grass since it is energy-rich, easy to digest and fast-growing. Prefers alkaline-rich, humus-rich, nutrient-rich soils.

    overview

    Annual ryegrass - image 1

    Annual ryegrass - image 1

    Annual ryegrass - image 2

    Pest Profile

    • About the pest

      Description

      Forms erect, light-green tufts which can become up to 1 m tall. The youngest leaf is rolled, the upper side of leaf is rough and the underside is glossy and smooth. Leaf blades are ridged and free of hair (Picture 1). The auricles are very pronounced and encompass the stem. The ligules are short and overextended, white, smooth-edged. Ears are with alternately arranged, individual spikelets (Picture 2). The glume is aristate (awned), longitudinal-lanceolate (spear shaped).

      Symptoms & Diagnosis

      Occurence

      Rarely a problem as a seeded grass weed, mostly found in crops grown following ploughing up of grassland (fodder)