BENEFITS OF COMBATIVE MEASURES 30 
to take up by blocks in two or three places and actually 
work out the cost, etc., of the method, improve it, if 
possible, and demonstrate to the people.” 
This method is decidedly ingenious and is undoubt- 
edly worthy of trial. I believe, however, that it will hardly 
prove to show any advantage over bagging with a bag such 
aus used in Mysore, if the work is done at the proper time. It 
probably would prove better if the jola had grown too 
high for effective bagging. On the other hand, the more 
complex nature of the apparatus, the greater cost of 
operation (the author does not state whether the cost of 
the pans is included in the estimated cost of operations 
per acre) and the additional fact that such an apparatus 
could not be used at all satisfactorily on grassy strips or 
patches, where the grasshoppers in the early stages of 
development are more numerous than on the crop itself, 
would indicate that the bag is likely to prove the more 
practical and effective impleinent of destruction. 
As already stated, the bagging operations were carried 
out very unequally and the results in consequence varied 
considerably. On eight acres of the deep-ploughed area the 
operations were carried out most thoroughly, bagging being 
done eight times with the result that the crop was entirely 
saved. In 1909, the owner of this land had harvested only 
one-half candy (200 lbs.) from his eight acres, the rest of 
the crop having been destroyed. The crop harvested was 
worth Rs. 10 and hardly repaid him for the work done on 
the land. In 1910, he harvested twelve candies worth 
Rs. 240. The deep ploughing had reduced the expenses 
of weeding by Rs. 10 while the owner estimated the ex- 
penses attached to bagging the whole area at only 
Rs. 6-9, including cost of bag. This estimate may be 
somewhat low, but, in any case, not taking into account 
the saving in weeding expenses, the bagging and deep 
ploughing paid for themselves some twenty times over. 
If we take into account the saving in weeding expenses 
ordinarily incurred, we find that it more than covers the 
cost of the operations including the small extra ex- 
pense of ploughing with an improved plough. It should 
be noted here that this eight acres was in the centre of 
the area most severely infested in 1909, so there can be 
no question with regard to the directly beneficial results 
of the operations, 
D 2 
