HYPSIPYLA ROBUSTA, MOORE. ary 
these are laid, as it isin the quiescent or cold-weather stage 
that such insects are usually most easily attacked, 
Mr. Coventry in his note writes as follows : —- 
*“* Remedy.—On a large scale little can be done against this pest ; but 
where young plantations exist, much good canbe done by cutting back the 
attacked shoots carefully above a bud, at abuut the middle of September 
or just before the larvae pupate. The shoots containing the larva should be 
burnt. The bud below the cut will develop and produce a shoot which will. 
replace the old terminal shoot, and 1t will have the whole of April, May, 
June, and July in which to put on growth before it is likely to be again 
attacked .. . . . During the first generation a great many larve might 
be destroyed by collecting them from trunks of trees about the beginning of 
May before they pupate, or pupz could be collected and destroyed by peeling 
off the pieces of bark containing them and burning them, In any case, if 
timber trees are required, it will be necessary to prune them, otherwise the 
boles are forked very low down.” 
During severe attacks it would also be advisable to collect 
and burn as many of the infested fruits as possible. Small boys 
could be put on to this work in plantations. 
The above remedies would both undoubtedly do good, but as 
the life history shows, they would have to be done quickly, and 
would therefore in large plantations prove costly. 
It isan axiom in combating insect attacks that the longest 
stage in their life history should’ be the one during which 
methods of destroying them are undertaken. In this case the 
longest stage is undoubtedly the winter one. If the stage 
proves to be the egg one, it should prove comparatively 
simple to introduce some method of getting rid of them, since 
there will be some five months during which the operations can 
be carried out. If the eggs are laid upon young growth, pruning 
will have the additional advantage, as Mr. Coventry suygests, of 
removing all badly-shaped’ saplings and obtaining in their 
place straight trees, : 
Points in the life history requtring further observation. 
1. Where the moths found on the wing during May June, 
and July lay their eggs. 
2. Is there more than one generation between April and the 
end of July? If so, how many ? 
3. The number of gererations in the year in the warmer 
and moister parts of India. 
4. Where the October moth lays her eggs, and when? Is 
the winter passed through in the egg stage? 
