South African Avocado Growers’ Association
1983 Yearbook
Volume 6
Table of Contents
5.
Voorwoord
/ Message
Dr. G S Bredell
6. Social
News
Dr Joe Darvas, Jan Toerien, John Da Graca, Carel Snyman, Peter Williams,
Colin Partridge
8. SAAGA:QuoVadis
Dr D L Milne
9. A step forward in
Saaga's extension service
G G Burelli
10. SA Avocados
R R Shelton
11. Avocados in Israel
B J Durand
RESEARCH - NAVORSING
16. Research projects
sponsored by Saaga for 1982 – 83
J M Kotzé
19. Post-harvest disease
control in avocados using prochloras
A W G Rowell
20. Voorkoms en Tendense
van na-oessiektes by Suid-Afrikaanse avokado's in 1982 by Rungis
J J Bezuidenhout and Eileen Kuschke
24. Die voorkoms van
Mesokarpverkleurings by Fuerte avokados op die Rungis mark gedurende 1982
J J Bezuidenhout
28. The handling of South
African avocados at the various warehouses at Rungis, France
E Kuschke
32. Bestraling van
avokadovrugte met Kobalt 60 om rypwording te vertraag
J H E Smith and P C H Jansen
34. Further studies on
avocado fruit growth and maturity in inland Natal
B Van Den Dool and B N Wolstenholme
41. Beheerde
atmosfeer-opberging en polietileensak verpakking van avocados
A B Truter and G J Eksteen
46. Chemical control of
post-harvest diseases of avocados by pre-harvest fungicide application
N Labuschagne and A W G PowelL
48. Pre-harvest chemical
control of post-harvest avocado diseases in the 1981/82 season
J M Darvas
51. Die verband tussen
rypwordingstemperatuur sagwordingstempo en interne antraknose by avokado's
J J Bezuidenhout
54. Control of Cercospora
spot in the 1981/82 season
J M Darvas
56. Identifisering en
intensiteit van uitskot-faktore voor verpakking gedurende die 1982-seisoen
J H E Smith
58. Enzyme activities and
the appearance of pulpspot in avocado fruit
L J Van Lelyveld, E Nel and R A Dixon
61. Die effek van
voedingswanbalanse in suurgrond op pulpvlek voorkoms by avocado
P S Fouche
64. Kalsiumnitraat
bespuitings op avokados te Westfalia-Landgoed met die doel om pulpvlek te
verminder
G Veldman
66. Die invloed van medium,
steggie-orientasie, -lengte en -groeisiklushout op etiolering
A A Ernst
70. Efficacy of Systemic
fungicides applied as a trunk paint and a sponge band for the control of root
rot on five year old avocado trees
C P Snyman and J M Kotzé
72. Five years of continued
chemical control of Phytophthora root rot of avocados
J M Darvas
74. Pathogenicity of
avocado root isolates to Edranol seedlings and Duke 7 rooted cuttings
C P Snyman and J M Darvas
76. Injection of
established avocado trees for the effective control of Phytophthora root rot
J M Darvas, J C Toerien and D L Milne
78. Systemic fungicides
applied as trunk paint against root rot of avocados
J M Darvas
79. Evaluation of
application techniques of four fungicides for the control of phytophthora root
rot on avocado seedlings
C P Snyman and J M Kotzé
83. Field indexing for
avocado sunblotch disease
J V Da Graca and T E Mason
86.
Effect
of avocado sunblotch disease on fruit yield
J V Da Graca, T E Mason and H J Antel
88. Bacterial Canker of
avocado
Lise Myburgh and J M Kotzé
90. Progress in tissue
culture of avocado
Dorothea D Nel, J M Kotzé and C P Snymam
92. In vitro propagation of
Persea indica
Dorothea D Nel, J M Kotzé and C P Snyman