COMBATIVE WORK IN 1910 30 
they got in on to the jola. This would, of course, be 
feasible only if the same type of spread takes place as was 
observed in 1910. 
Finally, it must not be forgotten that a single bagging 
will not suffice to collect all the hoppers. A certain 
number will drop to the ground when the bag is drawn 
through the crop. Others will remain clinging to the stems. 
In addition, if bagging is begun early, as it should be, a 
number of the egeg-masses will not have hatched. The 
work of bagging should, in fact, be looked upon in the same 
light as that of weeding, something which should be re- 
peated at regular intervals. Just how many baggings will 
be necessary and what interval should intervene between 
the baggings will depend on a number of factors, first of 
Which is the amount of co-operation that exists between 
the different raiyats and landholders in a village. 
In the work that was done during the summer of 1910, 
the raiyat who saved his crop most completely carried out 
the bagging as many as eight times on his eight acres of jola. 
So many baggings would not have been necessary had his 
neighbours on all sides looked after their own crops. Some 
of these, however, bagged only twice. From a general con- 
sideration of the results obtained in 1910, it appears fairly 
certain that, if the operations are begun at the right time 
and carried out systematically throughout a whole village, 
three or four baggings are all that will be necessary. 
Bagging operations in 1910 were confined to the lands 
of two villages—Hole-Madhapur and Devanayakanhalli, 
close to the town of Honnali. About sixteen acres in the 
area that had been worst infested by the grasshopper the 
previous year, were deep-ploughed to a depth of about eight 
inches with an improved plough. It was with the 
greatest difficulty that the raiyats of these villages were 
persuaded to take up the remedial measures and there were 
only one or two of them who did the work thoroughly 
and systematically. 
On account of the apathy of the raiyats, the commence- 
ment of the general bagging operations was delayed till 
the 17th August, when some of the jola was already too high 
to be properly bagged. Previous to this only twenty-eight 
acres had been bagged. For an idea of the number of erass- 
hoppers that can be caught by this method, Plate IV, Fig. 2, 
may be consulted, This represents part of the catch made 
D 
