Overlapping false armyworm populations…a possible reason for outbreaks
After one year of monitoring flight patterns of false armyworm moths and testing a climate-based temperature model, new information about this insect is revealing some interesting facts.
The false armyworm (Photo 1) has for many...
Keeping an eye on RLS
Tarekegn Terefe,
ARC-Small Grain,
Bethlehem
Nokulunga Mzimela,
ARC-Small Grain,
Bethlehem
Kelly Breeds,
CenGen (Pty) Ltd
Renée Prins,
CenGen (Pty) Ltd
Ramularia leaf spot (RLS), caused by the fungus Ramularia collo-cygni (Rcc), was identified for the first time in South Africa in 2015. This important...
Effective weed strategies in sorghum
September 2018
DR MARYKE CRAVEN, MARLENE VAN DER WALT and DR JEANETTA SAAYMAN-DU TOIT, ARC-Grain Crops, Potchefstroom
The slow growth rate of sorghum and the sensitivity of this crop to most herbicides, present the greatest challenges...
Klop plaagdoderweerstand met slim planne
Baie mense is skepties oor Charles Darwin se ewolusieteorie, maar daar steek ernstige wetenskaplike waarheid in. Organismes het deur millennia ontwikkel en gedurig aangepas by veranderende omstandighede. Mense interpreteer dikwels Darwin se teorie verkeerd,...
Sojaboonentstowwe in Suid-Afrika: ‘n Vervaardigersperspektief
September 2018
WILMA MAC PHERSON, South African Bioproducts Organisation
Die voordeel van sojaboonproduksie in rotasie met mielies – en dan natuurlik ook die wisseling in mieliepryse – het in die afgelope dekade ‘n dramatiese groei in...
Towards more sustainable control of the Russian wheat aphid
September 2018
NOKULUNGA MZIMELA and DR JUSTIN HATTING, ARC-Small Grain, Bethlehem
Following the release of the first Russian wheat aphid (RWA), Diuraphis noxia (Photo 1), resistant cultivar (Tugela-DN) in 1992, host plant resistance has become the backbone of...
Aalwurmpeste: “Voorraadopname” en die pad vorentoe
September 2018
PROF DRIEKIE FOURIE, MARETHA PRETORIUS, Eenheid vir Omgewingswetenskappe en Bestuur, Noordwes-Universiteit en DR NANCY NTIDI, LNR-Graangewasse, Potchefstroom
Graangewasproduksie, onder beide konvensionele en bewaringsboerdery, word geknou deur plantparasitiese aalwurms – waaroor vele wetenskaplike en populêre...
Biosecurity systems under pressure
It is estimated that pests and pathogens destroy between 10% and 40% of food production globally. There are ways to deal with this problem, starting with biosecurity and plant health management systems.
But this is...
Aktiewes – van a,b,c tot 1,2,3
Die Herbicide Resistance Action Committee (HRAC-SA) bestaan uit verteenwoordigers van alle chemiese maatskappye in Suid-Afrika en skakel in onder HRAC-Global. Die oorkoepelende doelwit van HRAC-Global is om opbrengste en kwaliteit van alle gewasse te...
Increase wheat yield with these fungicides
September 2018
DR TAREKEGN TEREFE and PETRUS DELPORT, ARC-Small Grain, Bethlehem
Fungal diseases infecting aerial plant parts of wheat are widely found in South Africa. Leaf diseases which frequently occur on bread wheat include leaf rust,...
