Articles written in Proceedings – Animal Sciences
Volume 94 Issue 3 June 1985 pp 283-294
Though acridids are generally polyphagous, they are not indiscriminate feeders as is observed, on the basis of extensive studies on several species of grasshoppers like
In this context, consideration is being given to, (a) physical factors of the host plant such as the thickness of the leaf lamina, the presence of trichomes, the position of the leaf blade, the general colour pattern and the effect of blinding, (b) morphological correlates of the insect such as mandibular modifications in relation to the host, its changes during post-embryonic development and their role in the shift of the host, the foregut armature and its influence on host selection, (c) the influence of chemicals like silica, phagostimulants and deterrents of the hosts on the insect feeding behaviour and (d) the role of sensory structures of the insect in the detection and discrimination of the host.
In addition to the discussion on the general pattern of feeding, the factors responsible for the initiation, continuation and termination of feeding are also analysed.