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Acacia manguim in Brazilian farm reforestation

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This is a beautiful video in Portuguese from Brazil's Globo Rural channel of farmland reforestation with cattle, pigs, goats, horses, mules, and bees. This 34000ha farm (14000ha totally preserved) in Mato Grosso state has planted 3500ha of acacia mangium (https://en.wikipedia.org/wiki/Acacia_mangium) a native of Australia and Papua New Guinea. They run 10000 head of Nelore cattle (https://en.wikipedia.org/wiki/Nelore) and use high protein leaves and silage from the nitrogen fixing acacias to feed cattle and pigs. The trees are planted 300per ha, including cultivation at a cost of approx (R$2.400 BRL) $925 NZD/ha planted. The trees flower twice a year and the growing foliage has extrafloral nectar glands that produce nectar the entire year, giving four honey crops a year. The farm has 1000 hives and invested approx (R$2 million BRL) $770,000 NZD in apiculture and a modern automated processing facility; payback on investment in 5 years. A recent crop (Jul-Oct) yeilded 12 tonnes of organic honey that processed on the farm and sold in 5 Brazilian states at approx (R$80) $30 NZD per kg. One website states hives on acacia mangium can produce up to 110kg of honey annually. Note the capped comb honey in a single serve plastic packs. The wood is suitable for furniture after 9 years and can earn approx (R$3000) $1150 a cubic metre, and is used for all their hiveware. As well as all that it keeps the cattle and soil protected from the sun, and improves soil fertility.

Acacia manguim is a major plantation species in Asia Pacific and the honey is regarded as very healthy; a link below to a published study "Antibacterial activity of selected Malaysian honey". Not to be confused False acacia / Black locust; “Robinia pseudoacacia”.

(In the video: intro on the farm and acacia trees from 30sec-5 min, honey production 5-7 min). 

 

https://g1.globo.com/economia/agronegocios/globo-rural/noticia/2018/12/09/de-mel-a-porcos-e-madeira-conheca-fazenda-que-aposta-na-diversidade.ghtml

"From honey to pigs and wood: meet farm that bets on diversity.

Property in Serra do Roncador, in Mato Grosso, is an example of integration of agriculture, livestock and forest, ILPF. It all started because of a tree."

"De mel a porcos e madeira: conheça fazenda que aposta na diversidade

Propriedade na Serra do Roncador, em Mato Grosso, é exemplo de integração de lavoura, pecuária e floresta, o ILPF. Tudo começou por causa de uma árvore."

Por Globo Rural

09/12/2018

 

https://healthywithhoney.com/acacia-mangium-honey-made-from-a-real-acacia-tree/

"Acacia honey is very well known worldwide. But the term can be deceiving (just as tea tree is). European Acacia honey is a different product than the acacia honey made in Malaysia.

In the US it is known as black locust honey or American acacia honey and in Europe as simply acacia honey but this is actually made from a false acacia, from a tree also known as black locust, on its scientific name “Robinia pseudoacacia”. Real acacia honey from an acacia tree is produced from Acacia mangium, a species found more in Malaysia and Australia."

"Extrafloral nectaries:

On the abaxial side of the basal part of every leaf stalks of Acacia mangium there are special nectar producing glands, called nectaries. The lens-like nectaries mature with the leaf, expanding with the development of the leafstalk and peaking at the stage at which the leafstalk itself has reached its mature size."

 

https://healthywithhoney.com/acacia-honey-is-made-of-false-acacia/

"It’s true: Acacia honey isn’t made from acacia!

There are some unifloral types of honey that are similar all over the world, like acacia honey or linden honey. Others are only appreciated in specific parts of world, like honeydew honey (fir or pine honey) is in Europe. Other types like eucalyptus, thyme, orange blossom honey are appreciated more in their origin places.

But all Americans love acacia honey. Probably because the tree originates from their country, or because of the purity of the color and distinct flavor. But I don’t think they know they are not exactly eating acacia honey, made from the flowers of acacia tree.It’s from false acacia!

The acacia honey as we know it, is made of BLACK LOCUST tree, on its scientific name: Robinia Pseudocacia. False acacia!"

 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3716576/

Antibacterial activity of selected Malaysian honey

10 Jul, 2013

"Antibacterial activity of honey is mainly dependent on a combination of its peroxide activity and non-peroxide components. This study aims to investigate antibacterial activity of five varieties of Malaysian honey (three monofloral; acacia, gelam and pineapple, and two polyfloral; kelulut and tualang) against Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Pseudomonas aeruginosa."

"Honey samples were obtained from local apiarists and stored in the dark at room temperature. The identification was performed by the bee hunters based on their geographical hunting area and floral availability at the location of bee hives (foraging radius). These were supported by organoleptic confirmation of the honey. The five types of honey used were: (i) acacia; honey derived from a plant widely used in the forest plantation industry from Sarawak state of Malaysia known as tropical acacia species or Acacia mangium, (ii) gelam; honey derived from mangrove swamp in Johore state known as Melaleuca cajuputi powell, (iii) kelulut; this type of honey is harvested by a stingless bee species, Trigona spp., and derived from multifloral foraging activity of bees, (iv) pineapple; a monofloral variety derived from pineapple flowers, Ananas comosus, and (v) tualang; a wild polyfloral honey produced by Apis dorsata located on one of the tallest tropical rainforest trees from species Koompassia excelsa. To ascertain the reproducibility and reliability of our study, the standard commercially available medical grade honey derived from manuka tree was included (Comvita Wound Care UMF 18+, New Zealand)."

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@Borage I wonder if blackwood, an acacia , has exfloral nectaries.

There is a time in spring when all flowering has past that my bees are very active in the tree and I could never figure it out .

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@kaihoka Other acacia varieties do have Extrafloral Nectaries (EFNs). I could not find anything about Acacia melanoxylon specifically.

Perhaps the answer is in this study that many others refer to.

STRUCTURE AND SECRETION OF THE EXTRAFLORAL NECTARIES OF AUSTRALIAN ACACIAS

Robyn Marginson , Margaret Sedgley , Trevor J. Douglas & R. Bruce Knox

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