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    Black bindweed

    Annual seed weed germinating in spring with spindle-shaped, deep root. Virtually found on all soils and undemanding with respect to dry and low-nutrient soil. Thrives on acidic soil.  

    overview

    Black bindweed - image 1

    Black bindweed - image 1

    Black bindweed - image 2

    Black bindweed - image 3

    Black bindweed - image 4

    Pest Profile

    • About the pest

      Description

      Cotyledons are strong, usually three times as long as wide, with generally uneven leaf halves (Picture 1). The leaves are triangular with a heart shaped base, stemmed, initially bag-shaped pointing downwards (Picture 2). The underside of the leaf and the stem often have a red tint. The leaves are arranged alternately on the stem (Picture 3). The inflorescences are white-green, short-stemmed, non-descript with loose pseudo-spikes. Each plant produces 100-300 seeds. The seeds are three-sided, black, and closely surrounded by brown remainders of the bracts (Picture 4). In soil, the seeds remain viable for approx. 20 years.

      Symptoms & Diagnosis

      Occurence

      Spring wheat, beets, spring rape, maize, legumes, potatoes