Termites: A menace to forestry and agricultural crops and new concepts in their management
Termites: A menace to forestry and agricultural crops and new concepts in their management
Hanif Gul
ABSTRACT
Studies were carried out on some new concepts for
management of termites with methods other than the
conventional chemical control. The new concepts in
addition to chemical control for build up of a model of
an integrated management of termites were population
assessment, wood resistance trails, resistant wood
extractive trials, influence of plant stress on termites
infestation. Population assessment trial carried out in
different localities showed the species wise
distribution along with their strength. Wood resistance,
trials showed the Dalbergia sissoo, Cedrus deodara and
Acacia nilotica as the most resistant wood while
Salmalia malabarica and Populus x-euramericana were
found as the most susceptible woods. Extractive of the
resistant wood were chemically obtained and D. sissoo,
C. deodara, extractive have shown resistance against
termites. The trials on the influence of plant stress on
termite infestation showed that damage to roots of
seedlings caused maximum stress while removal of foliage
partly decreased stress on the seedling in the initial
stages. All the dying and dead plants were found
infested by termites while healthy plants were safe from
termite infestation. Chemical control trials with
chlorinated hydrocarbon insecticides afforded protection
for more than 20 years while trials with pyrethroids are
in progress and have shown efficacy for the last seven
years.
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March 1995
Vol. 45, Iss. 1
