The 7 Step lifecycle of Our Tanalised CCA treated Poles

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Seedlings

Eucalyptus is a genus of over seven hundred species of flowering trees, shrubs, or mallees in the myrtle family, Myrtaceae. Although it is native to Australia, a lot of species were specifically adapted for South African conditions. Sabie Poles sources their seedlings from reputable growers in the region. Orders must be placed 6 to 12 months in advance.

In the 20th century, scientists around the world experimented with eucalyptus species. They hoped to grow them in the tropics, but most experimental results failed until breakthroughs in the 1960s-1980s in species selection, silviculture, and breeding programs “unlocked” the potential of eucalypts in the tropics. Prior to then, as Brett Bennett noted in a 2010 article, eucalypts were something of the “El Dorado” of forestry. Today, eucalyptus is the most widely planted type of tree in plantations around the world in South America (mainly in Brazil, Argentina, Paraguay, and Uruguay), South Africa, Australia, India, Galicia, Portugal, and many more.

Eucalyptus seedlings are usually unable to compete with the indigenous grasses in the wild. In the wild, they will germinate after veld fires. The following Eucalyptus species have been able to become naturalized in South Africa: E. camaldulensis, E. cladocalyx, E. diversicolor, E. grandis and E. lehmannii.
https://en.wikipedia.org/wiki/Eucalyptus

Eucalypts have been grown in plantations in many other countries because they are fast-growing and have valuable timber, or can be used for pulpwood, honey production, or essential oils. In some countries, however, they have been removed because they are highly flammable. The use of Eucalyptus trees is endless.

Planting

Preparing your land (Plantation) for planting is extensive as well as expensive. Demarcated areas need can be operated under Government regulations and licenses. As Eucalyptus is seen as an invasive plant in South Africa – there are guidelines set out which must be followed to prevent fines and Sabie Poles adhere to the regulations to ensure that our customers get quality timber from being well looked after plantations. The purpose of planting restrictions is to ensure compliance with all legal and other requirements when establishing or re-establishing previously planted compartments. This includes planting and coppicing. When establishing or re-establishing compartments, the landowner must ensure that the correct distances from hydrologically sensitive areas are left unplanted. To establish the correct planting distance from such areas, the landowner needs to be familiar with the requirements of a delineation document, “Guideline for the Delineation of Riparian Zones and Wetlands”

A dedicated group of workers is employed on a permanent basis to prepare plantations and to ensure sustainable timber supplies to our other operations.

First, all old trees and debris must be cleared. The old stumps can be manually removed or mechanically with a bulldozer or back achter.
Planting windows depends on your location and climate. Be sure to water the tree both before and after planting. Dig the hole slightly larger than the root ball, and take care with the tree’s roots during planting, as they do not like being disturbed. (https://www.gardeningknowhow.com)

Recommended spacings are as follows- Eucalyptus. – seedlings each 2.5 meters (8 feet) along rows 4 meters (13 feet) apart. This corresponds to 1000 trees per hectare.

Nutritional information

Additional nutrition depends on scientific testing of the ground. Fertilizing methods and recommendations

  • Fertiliser should be placed around the seedling 15cm from the stem (or 25cm from the stem in the Zululand area), Or placed in two slits adjacent to the seedling and covered.
  • The full dosage of fertilizer should be given at planting, but no later than two weeks after planting. •
    Fertilizer should also be re-applied to blanked seedlings.
    It is important to keep the plantations free of weeds.

How long does it take before we can harvest?

The demand for poles and fencing material increase monthly. Kakooza says as long as one uses improved seeds, eucalyptus Grandis will produce large, straight stems and could provide you with a good income from two to three years (building poles), large poles by eight years, and timber from around 12 years onwards. Some Plantation owners tend to harvest much more sooner to feed the demand – leaving the poles/fencing as inferior quality.

Harvesting

We select plantations to be harvested on a rotation basis. Laths and droppers are harvested first. The laths and droppers are then carried/transported to the edge of the plantation. For the edge of the road, it gets transported to our yard. When the trees get bigger the next phase is to take out the poles and fencing material.
Bark gets stripped off in the plantation which leaves the drying and grading and treatment, to our expert team in the yard.

Grading

The strictest timber/pole and CCA grading systems are followed to ensure the best quality products to our clients.
Our longstanding relation with ___ has benefitted our customers over the years. Ensuring that they always receive top-quality timber products from Sabie Poles. We also make sure to supply the correct treatment for the application.
Planting poles need a higher concentrate of CCA than a pole that is used for a pergola and is used under the roof.
We offer a wide variety of products including CCA Poles, CCA Droppers, CCA Laths, Construction Timber, Cladding, Flooring, Decking & more.
Our team is highly experienced and we have an eye for detail, so you can be sure that when you buy from us your product will be perfect!

Treatment

We also make sure to supply the correct treatment for the application.
Planting poles need a higher concentrate of CCA than a pole that is used for a pergola and is used under the roof. Our timber and poles experts will guide you when you are not sure which CCA treatment needs to be utilized on your timber projects.

WHAT IS THE TIMBER PRESERVATIVE KNOWN AS CCA? CCA (Copper-Chrome-Arsenate) is an industrial wood preservative developed in 1933 and widely used in South Africa since the ’70s. When applied to timber it enhances durability by preserving it against biological deterioration such as insect attack (wood borer and termites) and fungal decay (rot). In South Africa only CCA Type C is allowed to be used as it is internationally recognized as the most stable and effective type, i.e. apart from its efficacy as a timber preservative, it successfully fixes to the lignocellulose material in wood. CCA may only be applied by industrial high-pressure process from where the familiar term “pressure treated wood” hails from. In South Africa, the manufacture and distribution of CCA are regulated by the Registrar of Act 36 of 1947 and it is registered as an agricultural remedy under the category “Wood Preservative”. Its intended use is stipulated as an industrial wood preservative for use only by National Regulator for Compulsory Specifications (NRCS) approved and SABS or SATAS certified industrial wood preservation plants, i.e. under-regulated and controlled conditions.

WHAT IS CCA TREATED TIMBER – Freshly treated CCA timber can be identified by its yellow/greenish to green color that fades over time into a weathered silver-grey if exposed to the elements and not maintained with wood finishing protective product i.e. a suitable exterior sealer. CCA treated wood is highly resilient against attack from biological decay and organisms if correctly applied and used in accordance with the required hazard classification, ranging from H2 (dry interior above ground) to H5 (heavy wet soils and freshwater), and for H6 (Marine contact) when used as a dual treatment with Creosote.

IS CCA-TREATED TIMBER SAFE?
– The chemical composition of CCA is a mixture of copper-chromium-arsenic compounds mixed in a ratio that when pressure impregnated into timber, through a chemical process known as “fixation”, causes the preservative to become immobile in the wood and therefore make it highly leach resistant. The chemistry behind CCA and its use in wood preservation is thus designed to fix the preservative in the wood so the treated wood product can perform as intended. By the very nature of the function of any wood preservative, it needs to be toxic to the agents which would otherwise attack the timber i.e. fungi and insects. The apprehension about the use and effects of CCA treated timber may be due to the inability to understand the significant difference between the actual preservative solution used in the industrial treatment plant and the final treated timber in which the preservative has become ‘fixed.’ The Environmental Protection Agency (EPA) in the United States conducted an 8-year investigation into CCA, the treatment process, the use and handling of the treated timber and the alternatives to the use of CCA. None of the EPA’s investigations produced any conclusive findings showing increased risks of toxic effects on humans (or of cancer) through the handling of treated timber. The EPA concluded that the benefits of CCA-treated timber far outweighed any risks. http://www.woodpreservativescience.org/safety.shtml Additional scientific studies from unbiased sources, particularly in the area of exposure of children on playground structures conclude that there is no increased risk through the use and contact with CCA treated timber. http://www.ncbi.nlm.nih.gov/pubmed/20377243

CCA TREATED WOOD IS AN ENVIRONMENTALLY FRIENDLY MATERIAL – When you select CCA-treated wood you not only build projects that last, you invest in the conservation of our forest resources. CCA treated wood will last much longer than it takes replacement trees to grow and be converted into wooden products, thus extending the life of wood and whilst requiring fewer trees to be cut, furthers the carbon sink of the carbon captured in the wood when the tree was growing.

WHAT ALTERNATIVES ARE THERE TO CCA? Alternative products are available, but they are either less practical or in some cases less effective in certain high hazardous and critical end applications, not always readily available, and in some cases just too costly when compared with other competing materials. The alternatives to CCA for applications ranging from H2 (dry interior above ground) to H5 (contact in freshwater) hazard end applications are – Creosote, which is well known and extensively used since 1832, however its aromatic and oily characteristics renders it more practical for industrial and agricultural end uses, e.g. fencing, transmission and telephone poles, railway ties, etc. where direct contact and extended close proximity is not expected. When used together with CCA as a dual treatment it is suitable for H6 (marine) applications in South African coastal waters. – The new generation inorganic alternatives used in applications similar to CCA are Copper Azole (CuAz), and Alkaline-Copper Quaternary (ACQ) preservatives. These preservatives are new to South Africa and therefore not widely available. (www.sawpa.co.za)

Stacking and grading at our yard

Products are stacked either outside in the yard–or inside ( decking/ceiling/and timber for use in roof trusses are stored inside sheds where the timber is protected against the elements.)
Timber preservatives like sealers and varnish are available from our office.


A strict inventory is kept at all times to be able to supply clients with immediate answers to their timber/poles and other inquiries. Our timber/sales team at Sabie Poles is dedicated to providing excellent advice on timber/treatment/poles/sizes etc.

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