Notes on some Trees commonly attacked by Termites

Just like other Agricultural crops, trees are alsoring-bark and sometimes fell young trees. Other
susceptible to termite attack and damage. Some oftermite species with devastating attack on
these trees could be under cultivation in plantation orEucalyptus are Ancistrotermes sp., Microtermes spp.,
may be preserved as ornamentals or tended as aAmitermes evuncifer, Coptotermes sp.,
shade-providing, or maintain as fencing or decorativeMicrocerotermes fuscotibialis and Trinervitermes
purposes. A good number of them are harvested asoccidentalis.
timbers for various domestic, industrial, medicinal and Delonix regia (Flamboyant Tree)
other uses. Termite damage on these trees wouldSeedlings of this ornamental tree are attacked in the
therefore reduce their value both in content andnurseries generally, cut at soil level by Odontotermes
viability. To stem the tides of attack and strategizesp., and hollowed out from below by Microtermes sp.
on appropriate control methods, the first basic step is Azadirachta indica (Neem )
to identify the termites, understand their behaviorLarger trees are ring-barked, while smaller ones are
and mode of attack. This will enable the controller toringed and felled by Macrotermes bellicosus and
know how and where to deploy his control measures.Odontotermes sp.
Termite attack on the following trees is described Tectona grandis (Teak)
below:Seedlings of this tree have been observed to be
 Cassiaseverely attacked innurseries by Amitermes
Young transplanted saplings in dry exposed sites areevuncifer, with smaller subsidiary damage by
hollowed out from below by Microtermes sp. andMicrotermes sp., and Microcerotermes fuscotibialis. 
Microcerotermes fuscotibialis. Matured trees may beA. evuncifer cuts the seedlings off at ground level,
attacked from the site of injuries caused by fungiwhile Microtermes and Microcerotermes hollows them
and other organisms.from below. Most of these attacks takes place in
 Dalbelgiavery exposed nurseries where the young trees
Attack on this tree is similar to that of Cassia.suffer severe desiccation.  
Seedlings in Nurseries are attacked by Amitermes In general, termite attack on mature trees is few,
evuncifer, which hollowed the stem from below.while damage is severe on seedlings. In Tropical
 Eucalyptus spp.Africa, termite of the subfamily, Macrotermitinae
The most consistent and severely attacked(The fungus growing termites) are serious pests of
plantation trees are the Eucalyptus. The mostforest trees. The activities of man to lumber timber
devastating termite species on Eucalyptus arehave greatly contributed to the elevation of termites
Macrotermes bellicosus and M. subhyalinus.to “serious pest status” in some instances.
Pseudocanthotermes militaris has also been observedEfforts must therefore be geared up to put
to cause serious losses to Eucalyptus in many areas.effective control mechanisms in place to protect
All these three species, including Odontotermes sp.,these trees from termite attack.