Browsing by Author "Roberts, Anthony"

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Constraints on Neltumius arizonensis (Coleoptera: Bruchidae) as a biocontrol agent of prosopis in South Africa : the role of parasitoids

Author: Roberts, Anthony Date: 2000 1. Two species of seed feeding bruchid, Algarobius prosopis and A. bottimeri, were introduced to South Africa in 1987 and 1990 respectively, to curb the spread of the invasive weed Prosopis. Failure of A. bottimeri to establish and reduced ... Read more
The influence of acacias on below canopy grass communities

Author: Roberts, Anthony Date: 2000 The inﬂuence of acacia species through their varying life stages (seedlings, juveniles, adults and dead trees) on sub-canopy grass communities was investigated at various sites in the Hluhluwe-Umfolozi Park (HUP). There were signiﬁcant ... Read more

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