ae THE JOLA OR DECCAN GRASSHOPPER 
as is necessary for good work. The best results can be 
obtained when the jola is not more than a foot or a foot 
and half high, so bagging should be begun almost immedi- 
ately after the general emergence of the pest. Delay 
means an increase in the amount of damage done, more 
vigorous insects, which are therefore less easily caught, 
and oreater difficulty in bagging on account of the height 
of the crop. Plate IV, Fig. 1 shows two bags being used 
in a jola field where the crop is about two feet high and 
where bagging was done quite effectively. 
Another point that must be emphasized is the neces- 
sity of dragging the bag rapidly. It should, in fact, be 
dragged through the crop on the run. It is only in this 
way that the “most satisfactory results can be obtained. 
It is moderately hard work but, with a bag of the size 
given above, it can be done without trouble by two men. 
As far as possible, bagging should be done against the 
wind, not with it. The insects are much more readily 
caught if this practice is followed. 
During the first few weeks after the emergence of the 
pest in 1910, the grasshoppers confined themselves quite 
largely to grassy strips bordering the fields. This was 
due partly to the fact that the crops which were sown 
very late, were not yet up when the grasshoppers emerged. 
From these grassy strips. they gradually worked out inte 
the fields. It was, therefore, at first found necessary to 
bag only on these grassy patches and strips and on the 
outer ten or fifteen feet of the crop. It 1s possible that 
the early distribution of the pest in 1910 was somewhat 
abnormal owing to the late sowing of the jola. If this is 
not the case, the bagging work will remain comparatively 
simple and easy. On the other hand, if with a more normal 
season the grasshoppers become more rapidly distributed 
over the whole crop, the work of bagging will, of course, 
be increased. 
It is only on jola and sajje that difficulties are ex- 
perienced in bagging after the crop has grown for some 
time. With navane, savé and ragi this difficulty does 
not occur, for the crop remains short throughout its entire 
erowth. In order to allow for a more easy bagging in jola 
fields, it might be well to sow an outer strip of three yards 
with one of the shorter grains such as navane or ragi, so 
that the hoppers could be collected on this strip before 
