Biological pest control – eco-friendly but lethal
Crop protection is the science and practice of managing pests and diseases. Three key approaches to crop protection include:
pesticide-based approaches such as insecticides and fungicides;
biotechnology-based approaches such as plant breeding and genetic...
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...
Herfskommandowurm: Toevlugsoord benadruk
Die herfskommandowurm (Foto 3) is ’n ernstige plaag op mielies in Suid-Afrika wat skade aanrig aan die kelkblare en aan mieliekoppe. Hierdie kommandowurm kan betekenisvolle opbrengsverliese veroorsaak en moet daarom dringend beheer word.
Bt-mielies wat...
TELA to control stem borers in SA
Bt maize is genetically modified to express insecticidal proteins and have been planted in South Africa since 1998. In the 2017/2018 season, 1,62 million hectares of Bt maize were planted locally, which is 71%...
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...
Die risiko van weerstandige onkruide vir gewasverbouing
September 2018
DR ERIK EKSTEEN, verkoopsbestuurder: Wes-Kaap, Syngenta, DR ELBÉ HUGO, tegniese produkbestuurder: Onkruiddoders, Syngenta en FRANCOIS VILJOEN, tegniese bestuurder: Onkruidbeheer, Syngenta
Onkruiddoderweerstand het die afgelope paar jaar ‘n algemene besprekingspunt onder produsente geword. Die grootste...
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...
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...
Volhoubare gewasproduksie deur grondverbetering
Vrugbare grond is die basis vir gesonde plante met ’n hoë gebruikswaarde.
Die doelwitte van ’n grondverbeteringstrategie sal die volgende insluit:
Die volhoubare verhoging van die nettoboerdery-inkomste per eenheid. Dit beteken dat óf die inkomste...
Olieboom, kankerroos, purperwinde – die drie sondebokke
September 2018
DR MARYKE CRAVEN, MARLENE VAN DER WALT en DR JEANETTA SAAYMAN-DU TOIT, LNR-Graangewasse, Potchefstroom
Olieboom, kankerroos en purperwinde is drie onkruide wat tot afgradering van graan kan lei. Die effektiewe beheer van dié onkruide...
