South African Avocado Growers’ Association

2013 Yearbook

Volume 36

Table of Contents

POSTHARVEST

9          Further observations on the effect that rainfall, irrigation and fertilizer practices have on the ripening of avocado fruit
FJ Kruger, NJR Roets, O Volschenk, P Pieterse and B Nzanza

18        Further investigations into the rind lesion problems experienced with the ‘Pinkerton’ cultivar
FJ Kruger and SD Mhlophe

23        Development of a more effective postharvest treatment for the control of postharvest diseases of avocado fruit
ZS Mavuso and JM van Niekerk

28        Comparison between SmartFresh™ and generic 1MCP
R Blakey and L Siachitema

HORTICULTURE

33        Calibration of handheld NIR to determine avocado maturity – Progress report
RJ Blakey

36        Calibrating avocado irrigation through the use of continuous soil moisture monitoring and plant physiological parameters
NJR Roets, RB Cronje, SP Schoeman, NR Murovhi and IM Ratlapane

42        Soil health, fruit yield, quality and nutritional value of avocado as influenced by different mulch types – Year 3 of 3
B Nzanza and P Pieterse

ENTOMOLOGY

48        Trap crop management strategies to control stink bug in avocado orchards with emphasis on Pseudotheraptus wayi Brown (Hemiptera:Coreidae)
T Radzilani, PS Schoeman, B. Botha and HC de Lange

53        Management of the coconut bug in avocados
PS Schoeman and T Grové

PATHOLOGY

60        Evaluation of alternative methods to stem injections to apply phosphonate to avocado trees for Phytophthora control, i.e. bark and soil penetrants to enhance phosphonate uptake – Preliminary report
JJ Serfontein and J Wright

64        Ultra-low volume fungicide applications for the control of diseases on avocado – A three year review
JM van Niekerk and ZS Mavuso