INSECTS INJURIOUS TO STORED GRAINS 185 



much of it is noticed to be wormy, it should be treated with carbon 

 bisulfide at once, as soon as threshed, which if done thoroughly 

 will prevent any further infestation that year. 



Barns and storehouses should be cleaned up and freed from all 

 loose and scattered grain chickens will help in this before April 

 1st, so that no moths will be allowed to develop and infest the 

 grain in the field. Places where grain has been in stock the pre- 

 vious season should be cleaned up by the aid of chickens. Thus if 

 there is any probability of grain being infested, it should be kept 

 tightly covered in the spring so as not to permit the spread of the 

 moths to the fields. 



Prevention of " Weevil " 



Undoubtedly grain-insects can usually be more successfully 

 combated by a proper housing of the grain. No matter how often 

 the insects are destroyed in a granary, if the remainder of the barn 

 is full of dust, sweepings, and refuse, as it generally is, on which 

 the beetles can feed and in which they will breed, and if the gran- 

 ary is not absolutely tight, as soon as the gas passes off the insects 

 from the barn will again enter the granary, and soon it will be as 

 badly infested as ever. 



Cleanliness. " Cleanliness will accomplish much toward the 

 prevention of injury from these pests, the cause of a great propor- 

 tion of injuries in granaries, mills, elevators, and other structures 

 where grain and feed are stored being directly traceable to a dis- 

 regard of neatness. Dust, dirt, rubbish, and refuse material con- 

 taining sweepings of grain, flour, and meal are too frequently per- 

 mitted to accumulate and serve as breeding-places for a multitude 

 of injurious insects. 



" The floors or corners and walls of the barn or storehouse 

 should be frequently swept, and all material that has no commer- 

 cial value burned." 



The Granary. " The ideal farmer's granary, from the stand- 

 point of insect ravages, should be built at some distance from 

 other buildings, and the rooms constructed of matched floorings 

 so as to be as near vermin-proof as possible. The doors should fit 

 tightly, closing upon a rabbet, which may be covered with felt or 

 packing, and the windows covered with frames of wire gauze to pre- 

 vent the passage of insects. The floor, walls, and ceilings should 

 be smooth, so as not to afford any lurking-places for the insects, 



