Research

Research

Insect monitoring and bio-control development

Insect monitoring and bio-control development

Effect of broad-spectrum insecticide applications on insect
pest damage and nut mass of pecan

Carya illinoinensis (Juglandaceae), in the Vaalharts production region of South Africa”
in International Journal of Tropical Insect Science

Research Report 2018/2019
Insects associated with pecan trees, Carya illinoinensis: characterisation, impact and controlProject overview (1 October 2018 – 30 September 2019):
  1. Insect Surveys
  2. Insecticide trials
  3. Endophytes
 
Format: Word Doc
File Size: 788 KB
Research Report November 2017
Insects associated with pecan trees, Carya illinoinensis: characterisation, impact and controlProject overview (December 2013 – June 2017):
  1. Surveys to characterise insect complex
  2. Field trials to quantify damage by bark stinkbug
  3. Field trials with different insecticide frequencies on nut set and development
 
Format: Word Doc
File Size: 424 KB
Pecan diseases

Pecan Diseases

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
  • Alternaria black spot
  • White and brown rot
Part 2:
  • Black lesions on nuts (Chaetomium species)
  • Overall decline of pecan trees
  • Fungi associated with the shot hole borer
Format: Word Doc
File Size: 12 MB
Format: Word Doc
File Size: 8 MB
Fungal Diseases associated with pecans in South Africa - Booklet
  1. Pecan scab
  2. Die-back
  3. Black blotch
  4. Alternaria black spot
  5. Necrotic lesions around beetle galleries
  6. Overall decline
  7. White and brown rot
Format: PDF
File Size: 2 MB
Polyphagous Shothole borer and fungus infesting Pecan trees

Polyphagous Shothole borer and fungus infesting Pecan trees

A collaborative research project between SAPPA and FABI started in 2018 investigating the PSHB on pecan nut orchards.

The project is on understanding the seasonal patterns as well as the rate of spread of the beetles, and also studying the long-term effects of the fungal infections caused by the PSHB

PSHB Research

PSHB Research

Water Research

Water Research

Quantifying water use of mature pecan orchards in selected irrigation areas of the Northern Cape – research report
Format: PDF
File Size: 5 MB