Technical Info

Bollworm

Bollworm Damage
African bollworm (Lepidoptera: Noctuidae) (Afr: Afrika bolwurm)
  • Identification and seasonal occurrence
  • Damage and control
Format: Word Doc
File Size: 866 KB

Cultar

May I use Cultar in my pecan nut orchard in South Africa?

Yes you may use Cultar but are cautioned to consider all the facts before you continue or start using it.

Cultar (Paclobutrazol) and some other brand names with the same active ingredient, are currently registered for use on pecan nut trees in South Africa. The product is widely used and has been for some time. The merits or demerits of the substance is not what is discussed here but rather the risks that are involved.

As part of risk management the pecan nut producer has to consider that the product is not registered in the USA. The reason for this is that it can be traced in the soil for several years after application and the USDA does not register such products. There could be a scenario where customers refuse to purchase pecans where Cultar has been applied or where traces can be found, leaving South African producers using Cultar, at risk of losing access to these markets.

MRL analysis and the means to test product for traces or residues of almost anything is real and this ability is only heightening.

SAPPA has an obligation to provide guidance and foresight to pecan nut producers to make informed and enlightened decisions timeously.

It needs to be understood is that it is ultimately the buyers who decide to buy or not to buy any product.

It is therefore recommended that producers should not start using Cultar and those that are using it should consider stopping the use thereof.

It remains the producer’s prerogative to use Cultar with acknowledgement of the risk.

Cultivar Identification

Mrs Anrie Allen, obtained my MSc degree in Plant Molecular Genetics at the University of the Free State. She is currently busy with her PhD degree in Genetics and Horticulture specializing in pecan nuts.

She is the director of Genepro (Pty) Ltd, which is a Genetic consulting and Laboratory services company. The main focus of Genepro (Pty) Ltd is pecan cultivar identification through DNA fingerprinting.

Contact Details:
GENEPRO (PTY) LTD
Anrie Allen
072 2599 459
anrie@gene-pro.com 

Pecan Pests and Fungal Diseases

Pecan Crop Protection
This document includes information regarding:
  • Pest management
  • Most common pests
  • Beneficial insects
  • Disease management
Format: PDF
File Size: 2 MB

Make use of AFCASA registered chemical advisors:

  • Only use registered chemical products, for insects and fungi
  • Make sure your spraying equipment can apply the products where needed
  • Insects and fungi are opportunistic and scouting orchards for potential problems are necessary
  • For a list of registered chemical products go to:
    https://www.sappa.za.org/dev/crop-protection/
  • In any spay program active ingredients should be alternated, helps with resistance buildup

Polyphagous Shot hole Beetle (PSHB)

Polyphagous Shothole Beetle (PSHB) - Symptoms
Format: PDF
File Size: 5 MB
For more information please visit the FABI website

Orchard Design

Orchard Design – Preparation for Sunlight Management
This document includes information regarding:
  • Orchard Layout
  • Sunlight Management
  • Orchard design – General Considerations
  • Examples of tree spacing
Format: PDF
File Size: 602 KB

Orchard Establishment / Pekanneut Vestiging

Pekanneut Vestiging - Belangrike Aspekte / Establishing an Orchard - Important Aspects
Hierdie dokument bevat inligting oor:
Die aspekte van belang met die vestiging van pekanneute
  • Klimaat
  • Grondtipe
  • Water
  • Boord ligging en topografie
  • Kultivar keuse
Format: PowerPoint
File Size: 14 MB
Pekanneut Produksie - Boorduitleg, Plantgatvoornereiding en Plant Metodes / Pecan Nut Production - Orchard Layout, Planting Preparation and Plant Methods
Hierdie dokument bevat inligting oor:
  • Boord Uitleg
  • Plant Metodes By Pekanneute In Praktyk
  • Voorbereiding van Plantgate
  • Meganiese Slootgrawer
  • Voorbereiding van Plantgate
  • Die Plant Van Pekanneutbome
Format: PowerPoint
File Size: 22 MB
Pekanneut - Plantmateriaal / Pecan Nut Plant Materials
Oopwortelbome
  • Voordele van Oopwortelbome
  • Klassifikasie van Oopwortelbome
Houerbome
  • Voordele van houerbome
  • Nadele van houerbome
  • Defekte by Plantmateriaal
Format: PowerPoint
File Size: 6 MB

Orchard Floor Management

Orchard Floor Management and Weed Control
This document includes information regarding:
  • Different ways of managing an orchard floor
  • Complete cultivation
  • Complete chemical control
  • Herbicide strip
  • Total cover crop
  • General considerations
Format: PDF
File Size: 655 KB

Water Requirements - Pecan Nuts

Water requirements pecan nuts per production area, water rights and legal requirements
This document includes information regarding:
  • Water requirements of pecan nuts in South Africa
  • Water requirement in Texas
  • Water rights and legal requirements
Format: PDF
File Size: 662 KB