Cupuaçu

Cupuaçu is propagated mainly from seed, though grafting and rooted cuttings are also used, and as a frost-tender tree it is typically grown from transplants. It thrives in firm, fertile soil with good water retention and does best where average annual temperatures exceed 22°C. Because of its tolerance for infertile soils, the tree is often incorporated into agroforestry plantings across the Amazon region.

Disease: The most prominent disease affecting cupuaçu is witches' broom (Moniliophthora perniciosa), which can spread through the entire tree and cause significant yield loss or even tree death if left untreated; regular pruning is recommended to limit its severity.

Pests: Cupuaçu also hosts the caterpillar of the butterfly Macrosoma tipulata, known locally as "lagarta verde," which can defoliate the tree.

Cupuaçu fruits are gathered from the ground once they fall naturally, since the rind shows no obvious color change to signal ripeness. Research in the Western Colombian Amazon found that fruits typically reach full maturity around 117 days after fruit set.

Culinary: The white, acidic pulp of cupuaçu is eaten fresh or made into juices, ice creams, sweets, wines, and liqueurs, and it is also dried into a powder for commercial food products.

Other uses: Cupuaçu seeds can be processed into a chocolate-like product called cupulate, and the fat extracted from the seeds, known as cupuaçu butter, is used in cosmetics and as a confectionery ingredient resembling white chocolate.

Cupuaçu descends from cupuí (Theobroma subincanum), a wild relative found in the Amazon, and genomic analysis traces its domestication to the Middle-Upper Rio Negro basin. A genetic bottleneck marking an initial domestication phase is estimated to have occurred 5,000 to 8,000 years ago, indicating that Amazonian indigenous peoples brought the tree into cultivation during the early to mid-Holocene, with a further reduction in genetic diversity accompanying its wider geographic spread over the past two centuries.