246 



The removal of the Farm dairy animals to new quarantine 

 quarters and their detention for over 30 days without a further 

 outbreak of anthrax and the thorough burning of the old dairy 

 premises have cleared up the anthrax situation on Oahu so that 

 now the people may rest easy. The situation on Maui has come 

 to a satisfactory close and although there were a few deaths dur- 

 ing August from anthrax on Kauai, wdiere the infection was 

 severe, the outbreak there may be considered at an end. 



Remedies for Insects Infesting Stored Products 



By E. M. Ehrhorn, 

 Chief of Division of Plant Inspection. 



The chief loss of grains, beans, and other products in stores, 

 mills, grainbins or on the farm (especially products that have 

 been stored for some time) is caused by insects, usually very 

 minute beetles and their larvae, or the larvae of small moths. 

 So sudden is the attack that one wonders how and from whence 

 the pests appear. 



In our semi-tropical climate much of the infestation begins in 

 the field from the time of the ripening of the crop to its storage 

 in bins or warehouses. The often heard remark that "beans are 

 weevly" or "flour or cereal is wormy" are results of insect infesta- 

 tion, as quoted above. 



Fortunately, the several important insects causing this infesta- 

 tion are amenable to like treatment. 



Aside from various preventive considerations, such as the 

 prompt hulling of corn and beans after harvesting, the thorough 

 cleaning of the bins where old material has been stored before 

 refilling them with the new crop, and the removal of all infested 

 grain or meals from the building in which a new crop is to be 

 stored, the principal remedy is fumigating all such stored products 

 with carbon bisulphide immediately after the bins are filled ; or, 

 if the crop is to be stored in sacks, the whole output should be 

 thoroughly fumigated before stored in the warehouse. 



Another matter which is especially important to the small 

 farmer is the practice of clean culture in his fields. Much of the 

 weevly condition of bean crops is due to the neglect to remove 

 and burn all trash left lying about the field and the accumulation 

 of waste material along the edges of the field. The cleaning up 

 of all such material will remove a lot of breeding places which 

 hold the various pests until the new crops are ready to attract 

 them. 



The best and most lasting remedy, however, is fumigation with 

 carbon bisulphide. This liquid is applicable only where its vapor 

 or gas can be confined quite closely. The vapor is much heavier 

 than air, and on account of this it is well adapted for fumigating 

 seeds in tight bins, because the vapor descends into the bins 



