GAAN AF VIR AFRIKAANS

PLANT DISEASE DIAGNOSTICS

Examine the plants and growing site thoroughly.
Collect several plant specimens. Samples should have representative examples of all stages of disease development.
When possible, collect the entire plant with the root system still intact. If the whole plant can not be submitted, search for discoloured tissue in branches showing symptoms.
As far as possible, select samples of living plants, post mortems doesn’t always provide the necessary answers.
Fill out the accompanying form as completely as possible. We need all the evidence we can get to unravel the mystery of some plant diseases.
sites/default/files/58/AgricDoc work form.xls

Use plastic bags to prevent the desiccation of material. If the material is soggy, wet or fleshy, rather use brown paper bags or something similar.
Do not add water or wet paper towels, this will enhance saprophytic fungal growth which obscures the real problem and may even destroy the sample completely.
Label the samples properly on the outside of the packaging.
Package delicate material in a sturdy box.
Send material preferably as early as possible in the week and avoid weekends. Use overnight courier services, posted living plant material may arrive as compost :-)
Seed samples for analysis may however be posted.

PLANTSIEKTE DIAGNOSE

Ondersoek die plante en plantomgewing deeglik.
Versamel verskeie plante. Monsters moet verteenwoordigend wees van al die fases van siekteontwikkeling.
Indien moontlik, versamel die hele plant met die wortelsisteem steeds intakt. As die hele plant nie ingestuur kan word nie, probeer soek vir verkleurde weefsel in takke wat simptome wys.
Probeer so ver as moontlik lewende plante versamel, post mortems gee ons nie altyd die nodige antwoorde nie.
Vul die meegaande vorm so volledig as moontlik in. Ons het al die leidrade nodig wat ons in die hande kan kry, om soms die geheime van plantsiektes op te los.

Gebruik plastieksakkies on die uitdroging van materiaal te verhoed. As die materiaal egter nat, papperig of vlesig is, gebruik liewer bruinpapiersakke of iets soortgelyks.
Moenie water of nat papierhandoeke insit nie, dit sal saprofitiese groei aanhelp wat die regte probleem kan verberg of die monster heeltemal verwoes.
Merk die monsters behoorlik aan die buitekant van die verpakking.
Verpak delikate materiaal in ‘n stewige kartondoos.
Stuur materiaal verkieslik so vroeg as moontlik in die week en vermy naweke. Gebruik oornag koerierdienste, lewende plantmateriaal wat gepos word mag dalk as kompos opdaag :-)
Saadmonsters vir ontleding kan egter gepos word.