Research

Quantifying water use of mature pecan orchards in selected irrigation areas of the Northern Cape – research report

NJ Taylor, JG Annandale, A Sanewe, W Rossouw, S Kunene, M Zwane, E Lötze, A Clulow & CS Everson

Research Report 2017/2018

Insects associated with pecan trees, Carya illinoinensis: characterisation, impact and control
Project overview (1 October 2017 – 30 September 2018):

1. Insect Field Guide
2. Expanded surveys

Pecan diseases and health risks in South Africa

A collaborative project, launched in 2017 between SAPPA and the University of the Free State (UFS) is focussing on the study and distribution of pecan diseases in South Africa:

Part 1:

• Pecan Scab
• Black blotch and die-back
• Anthracnose
• White and brown rot

Part 2:

• Black lesions on nuts (Chaetomium species)
• Overall decline of pecan trees
• Fungi associated with the shot hole borer