270 INSECTS 



value of much of the crop actually harvested and 

 marketed, I believe that 20 per cent, depreciation in 

 value of farm products is not too high an estimate of 

 the losses annually caused by insects in the United 

 States and Canada. As the value of such products 

 was estimated in the Report of the U. S. Department of 

 Agriculture for 1907 at $7,412,000,000, the estimated 

 loss, due to insect ravages in the United States alone 

 should be put at $1,500,000,000 at least. 



