Update on wheat rusts in South Africa
Wheat rusts are fungal diseases that primarily infect the leaves and stems of wheat. There are three types of rust diseases (stem rust, leaf rust and stripe rust) which commonly occur on wheat worldwide.
All...
Importance of monitoring insects in a management programme
September 2018
DR ASTRID JANKIELSOHN, ARC-Small Grain, Bethlehem
The aim of a management programme is to prevent pest infestations in a crop. Managing insect pests requires flexibility since insects are site, crop and area specific. Monitoring...
Weed control for HERBICIDE RESISTANCE
September 2018
HESTIA NIENABER, ARC-Small Grain, Bethlehem
Herbicide resistance is a well-known occurrence in many crops in South Africa. Since the first confirmed case of herbicide resistant wild oats in 1986, various cases of herbicide resistance...
‘n Kykie na insekplae op MIELIESAAILINGE
September 2018
ELRINE STRYDOM, LNR-Graangewasse, Potchefstroom
Gedurende die ontkieming en opkoms van ‘n mielieplantjie is dit belangrik dat ‘n mens bewus sal wees van insekte wat skade daaraan kan aangerig en om pro-aktief op te tree...
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...
Balkspuite: Hoe maak mens ‘n SINVOLLE KEUSE tydens aankoop?
September 2018
MARIUS RAS, groep-bemarkingsdirekteur, Rovic Leers
Tenkkapasiteit en spuitwydte is twee spesifikasies wat onlosmaaklik deel is van die potensiële vermoë van die spuit om, teen gegewe watervolumes per hektaar (tipes chemiese en weerstoestande) en gemiddelde...
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...
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...
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%...
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...
