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Coconut palms

From Munshipedia, the MBRAS digital historical encyclopedia

Coconut palms

The coconut palm (Cocos nucifera) occupies a position of considerable economic and cultural importance across the Malay Peninsula and the wider Malay Archipelago, as attested by the entomological, agricultural, and botanical literature of the late nineteenth century. The palm’s significance is most vividly documented through the pest species that attack it and the extraordinary biological variations it occasionally exhibits, both of which drew sustained attention from colonial botanists and agricultural officers in the Straits Settlements and the Federated Malay States. The records preserved in the Society’s journal reveal a subject that was studied less for its taxonomy than for its vulnerability to insect damage, its role in local food and folk practice, and the rare anomalies in its development that challenged prevailing botanical understanding.

Pest Species and Their Biology

The most substantial body of documentation on the coconut palm in the Society’s literature concerns the two beetle species responsible for the destruction of plantations in Singapore during the 1880s. Henry N. Ridley, Director of Gardens and Forests for the Straits Settlements, published a detailed report in 1889 addressing the escalating damage caused by the elephant beetle (Oryctes rhinoceros) and the red weevil (Rhynchophorus ferrugineus) [1, pp. 1–11]. Ridley distinguished sharply between the two species in both their biology and their mode of attack, a distinction that proved essential to any effective control strategy.

The elephant beetle is destructive in its adult form. It flies at night to the base of a leaf-stalk, burrows into the heart of the cabbage, and nibbles so deeply that it either severs the growing point or creates a wound through which rain enters and sets up fatal decay. A single attacked tree becomes a magnet for repeated visits; Ridley recorded two or three beetles removed daily from the same palm despite attempts to repel them with carbolic acid and salt [1, pp. 2–3]. The grub of this species, by contrast, is harmless and even beneficial, feeding on rotting wood and vegetable refuse to convert it into soil. Ridley found as many as forty full-grown larvae in three feet of a rotten palm-stem, and noted that a single decaying coconut tree can breed over a thousand beetles before it is fully consumed [1, pp. 1–2]. The grubs also develop in manure pits, cow dung, tan bark, crushed sugar-cane, and leaf mould, making any accumulation of decaying vegetable matter a potential breeding site [1, pp. 1–2].

The red weevil operates on the opposite principle: it is the grub, not the adult, that causes damage. The female uses a remarkably long ovipositor to deposit eggs deep into the soft pithy wood at the base of the cabbage, and the resulting footless, cylindrical larva burrows transversely through the growing tissue. Detection is far more difficult than with the elephant beetle, as the grub works entirely internally; the first visible sign is usually the withering and fall of the central shoot, or in severe cases the exudation of a shiny, sour-smelling liquid [1, pp. 5–6]. When full grown, the red weevil grub reaches a length of just over two inches and is a thick, fleshy, cylindrical, opaque white larva with no feet or antennæ; it moves by the aid of thickened segments [1, p. 6]. Ridley refuted the popular belief that grubs breed in mangrove mud, noting that plantations near mangrove swamps in the interior are typically free from attack, and that the grubs are physiologically unsuited to that habitat [1, p. 2].

Ridley also documented the range of palm species susceptible to the elephant beetle in the Botanic Gardens, including Cocos plumosa, Corypha gebanga, Phoenix dactylifera, Elœis guineensis, and Borassus flabelliformis, but noted that the betel nut, gomuti, sago palm, and slender-stemmed palms were never attacked; he even observed one beetle gnawing a cycad, evidently mistaking it for a palm [1, p. 2]. Trees in the neighbourhood of towns were most vulnerable to attack, while small isolated patches around Malay villages in the interior were usually free from damage, even when situated near mangrove swamps [1, p. 2].

Control Measures and Agricultural Practice

On the question of control, Ridley advocated a combination of practical and legislative measures, arguing that while absolute extermination was impossible, systematic regulatory and practical measures could reduce damage to negligible levels [1, pp. 1–11]. Practically, planters should employ men with barbed iron or copper wire spears to extract adult beetles from their burrows, plug holes with rag dipped in weak carbolic acid, and burn fallen leaves and husks in large night-fires to attract and kill the insects. Legislatively, he called for compulsory burning of all dead coconut trees, prohibition on storing stems for use as bridges or posts, and regulation of tan-works and sugar-factories whose vegetable by-products provided breeding ground [1, pp. 4–7].

Ridley also addressed a common horticultural practice that he considered counterproductive. The trimming and cleaning of the fibrous sheath of young palms, recommended by some planters, was shown to be harmful: he cited evidence from Ferguson’s All About the Coco-nut Palm (Colombo) showing that on one property more than one-third of the original plants perished within ten years of trimming, at a rate of three trees weekly, until the practice was abandoned [1, p. 5]. A considerable proportion of palms attacked by the red weevil recover, provided no grub bores through the growing point or sets up decay in the heart of the cabbage; only when the central bud is destroyed is the tree irrecoverably lost [1, p. 6].

Local Knowledge, Folk Beliefs, and Culinary Uses

The coconut palm’s relationship with local communities extended well beyond its agricultural value. Mr. Hale of Tampin recorded in 1890 the Malay larval names Lembetah and Kelematah (from gele mata, “tickles the eye”), offering an etymological explanation rooted in the visceral reaction the wriggling larvae provoke in Malay women [2, p. 429]. He compared this to Forbes’s account of inducing latah by flicking a caterpillar at a woman [2, p. 429]. The larvae themselves were eaten by Malays, fried alive until crisp, yielding a sweet nutty oil (about half a pint from 100 larvae) that Malay women used as a hair-growth tonic [2, p. 429]. The adult insect was variously called Kumbang Jenti, Kumbang Kalapa, or Buang, though these names were applied indifferently to other large beetles [2, p. 429].

Botanical Anomalies: Precocious Development

The coconut palm also attracted attention for rare developmental anomalies. In 1898, A. B. Stephens reported a coconut nut sown on 10 May 1897 at the Yam Seng Estate, Perak, which produced fruit fronds and bore ten small coconuts in just six months and thirteen days, an almost unprecedented rate of development. The plant had sent out only a few small crinkly leaves of about 15 inches in height, apparently from two stems, one of which carried five fruit fronds [3, p. 103]. Ridley confirmed the remarkableness of the case and recalled a similar specimen brought to the Singapore Botanic Gardens by a Chinese man about a year earlier, in which flower spikes protruded from between the ordinary young leaves of a still-attached nut. He considered two possible explanations: that the flower spikes were formed in the ovary before germination, analogous to monstrosities in crucifers where fruit contains flowers instead of seed, or that the plant exhibited extreme precocity, flowering years before expected [3, p. 104].

Research and Documentation

The Society’s literature on the coconut palm reveals a clear trajectory from practical agricultural entomology to more speculative botanical observation. The dominant concern of the 1880s and 1890s was the protection of plantation capital: Ridley’s 1889 report, issued from the Surveyor General’s Office in Singapore and accompanied by plates of both beetle species, was a document of urgent administrative purpose, directed at the planter class in the Straits Settlements and the wider Malay Archipelago [1, pp. 9–11]. Its emphasis on legislative control—compulsory burning of dead trees, regulation of industrial by-products—reflects the colonial state’s interest in safeguarding commercial coconut production.

By the 1890s, the literature had broadened to encompass local ethnographic knowledge (Hale’s note on larval names and culinary uses) and rare botanical curiosities (the precocious specimens at Perak and Singapore). These later contributions, while shorter in scope, indicate a shift in the Society’s editorial priorities from purely utilitarian entomology toward a more varied natural history that included indigenous terminology, folk belief, and developmental anomalies. The absence of any comprehensive monograph on the coconut palm’s cultivation, morphology, or distribution in the records examined suggests that the species was treated primarily as a subject of applied science—its value assessed through the lens of pest damage, economic yield, and the occasional botanical surprise—rather than as an object of systematic botanical study in its own right.

MBRAS Sources

References

  1. H.N. Ridley (1889). Report on the destruction of coco-nut palms by beetles JSBRAS 20: 1–11.
  2. Hale A (1890). Coconut beetles JSBRAS 22: 429.
  3. H.N. Ridley (1898). Precocious coconuts JSBRAS 31: 103–104. Read on JSTOR