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...
Nuwe, aggressiewe rasse van roesswam bekommer
Sonneblomroes kan aanleiding gee tot oesverliese, veral wanneer vroeë infeksies op vatbare basters met betekenisvolle verlies van funksionele blaaroppervlak gepaard gaan.
Heelwat inligting is beskikbaar oor die seisoenale voorkoms van die siekte in Suid-Afrika, maar...
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%...
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...
False armyworm – forecasting outbreaks
During 2019 the first results of the false armyworm forecasting model became available and clarity regarding the population growth started to develop. This insect is a sporadic pest on barley, wheat, maize and sorghum...
A plant out of place
Six Urochloa-species are found in South Africa, of which bushveld herringbone grass (Urochloa mosambicensis or bosveldbeesgras) and herringbone grass (U. panicoides or beesgras) are important grass weeds.
Both of these weed species are documented to...
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...
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...
Bestuur onkruidsade só tydens die oesproses – Deel 1
Die aanvaarding van bewaringsboerdery en minimumbewerkingspraktykte in veranderende klimaatstoestande is wêreldwyd besig om veld onder produsente te wen. Suid-Afrika is nie uniek in die benadering tot die aanvaarding van hierdie praktyke nie.
Resultate toon dat...
Managing the local risk of fall armyworm infestation in maize
The fall armyworm (Spodoptera frugiperda) has now been present in South Africa for three cropping seasons. This pest has its origin in the tropical and sub-tropical areas of South America and the most southern...
