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   Effects of Artemisia afra leaf extracts on seed germination of selected crop and weed species

   Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N. Ammann --- Department of Agronomy, Republic of South Africa P.J. Pieterse --- Department of Agronomy, Republic of South Africa

   Herbicide resistance in weeds is a phenomenon threatening sustainable cereal production in the winter rainfall region of South Africa. Every possible weed control measure that may be used to complement chemical weed control measures should be investigated. The effect of...

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2. 

   Condensed tannin in Eragrostis chloromelas leaves deters feeding by a generalist grasshopper

   Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J. Dini --- Department of Zoology, Republic of South Africa N. Owen‐Smith --- Department of Zoology, Republic of South Africa

   We investigated the feeding responses of a generalist grasshopper, the brown locust (Locusta pardalina), to leaves of the grass Eragrostis chloromelas differing in polyphenol content. For three specimens of E. chloromelas, the presence of condensed tannin in epidermal cells was...

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