2016 09 Tree Failure in Yuen Long

By | 2016-12-21T22:34:12+00:00 December 19th, 2016|Tree Failure News, Trees & Termites|

A tree failure occurred in a park in Yuen Long in September 2016.  “white ant s” (termites) were noted at the point of tree failure.  This is an example of when subterranean termites such as Coptotermes formosanus attack a tree from below the ground.  They usually are not visible from outside the tree – all […]

Odontotermes formosanus

By | 2016-12-21T22:03:01+00:00 December 18th, 2016|Trees & Termites|

Appearance of Soldier

Around 6mm long. The head is pale orange and oval-shaped. Mandibles are curved and sharply pointed, with a distinct tooth on the inner margin of the left mandible.

Habit

Build large underground nests. Build soil covers and keep fungus combs in their nests like M. barneyi.

Citation: Hong Kong Food and Environmental Hygene Department […]

Macrotermes barneyi

By | 2016-12-21T22:03:22+00:00 December 18th, 2016|Trees & Termites|

Appearance of Soldiers

With two classes of soldiers, the major soldiers (7.5-8mm long) and minor soldiers (5-6.5mm long). Major soldiers are with brownish red heads while those of minor soldiers are paler. Mandibles are black, long and saber-like

Habit

Build underground nests. May also build large earth mounds to house their nests. Soil particles and saliva are used […]

Procapritermes sowerbyi

By | 2016-12-21T22:03:45+00:00 December 18th, 2016|Trees & Termites|

Appearance of Soldier

Around 7mm in length. The head is rectangular and pale yellow. The body is white in colour. Mandibles are long, slender and slightly asymmetrical.

Habit

Feed on humus in soil. Little is known about this species and other habits are thought to be similar to those of C. fuscotibialis.

Citation: Hong Kong Food and […]

Capritermes fuscotibialis

By | 2016-12-21T21:59:44+00:00 December 18th, 2016|Trees & Termites|

Appearance of Soldiers

The head is rectangular and yellow to light brown in colour. Mandibles are characteristically asymmetrical.

Habit

Feed on humus in soil. Usually found inhabiting parts of nests built by other larger termite species.

Citation: Hong Kong Food and Environmental Hygene Department – Pest Control Newsletter, Termites

Reticulitermes fukienensis

By | 2016-12-21T21:59:58+00:00 December 18th, 2016|Trees & Termites|

Appearance of soldiers

Around 4.5mm long. The rectangular head is yellow in colour. Mandibles are relatively short and stout with dark tips.

Habit

Live in old tree stumps and buried timber. May also infest moist structural timber in buildings.

Citation: Hong Kong Food and Environmental Hygene Department – Pest Control Newsletter, Termites

Coptotermes formosanus

By | 2017-01-01T21:22:03+00:00 December 18th, 2016|Trees & Termites|

Appearance of soldiers

Around 5mm long. The head is pear-shaped and pale orange in colour. Mandibles are large, pointed and dark.

Habit

Inhabit dead tree branches and moist structural timber in domestic environment. May damage a wide range of items of wood origin. The most commonly encountered pest species in Hong Kong.

Citation: Hong Kong Food and […]

Cryptotermes brevis

By | 2016-12-21T21:56:27+00:00 December 18th, 2016|Trees & Termites|

Appearance of Soldiers

Around 5 mm long. The head is large, cylindrical and dark. The body is creamy white. Mandibles are small as compared with those of other species.

Habit

Live in a variety of structural timber away from ground in domestic environment. Found in dead tree branches occasionally.

Citation: Hong Kong Food and Environmental Hygene Department […]

How do Coptotermes termites attack trees?

By | 2016-12-19T18:57:53+00:00 December 17th, 2016|Trees & Termites|

Coptotermes are wood-feeding termites that can attack both living and dead wood. The genus is notorious for its habit of colonizing living trees and hollowing out the heartwood to the extent that the trunk can be ‘piped’ and replaced with nest material and soil, without the tree showing external signs of their presence. The Oriental […]