Report of the State Entomologist 275 



dibles of the beetle, and the cutting is after this manner: an incision 

 being first made, its extension is continued as the beetle slowly 

 rotates for the purpose within its cell — one revolution completing 

 it — its outline being defined by the position of the beak. 



Two or three dark-colored excremental rods may be left within the 

 cell (together with the cast and flattened mass of exuvia), as the result 

 of the feeding that has taken place therein. 



Kemedies. 



After this perhaps too extended discussion of a minute insect, if 

 aught relating to the history and habits of any of our insect pests 

 can be in excess, it yet remains to consider the remedies available 

 against the bean-weevil. 



It follows from what has been written, that one of the popular 

 remedies ofttimes presented for its control, viz., keeping over the 

 beans until a second year, by which time the beetles will have emerged 

 and died, leaving the seed safe for planting, must henceforth be 

 discarded, as of no value whatever. 



As yet we know of no preventive of the deposit of the eggs upon 

 the young plant. If the season for oviposition of the parent beetle 

 were quite limited, which unfortunately it is not, the entrance of the 

 newly hatched larva into the pod might perhaps be prevented by 

 the same means used for the destruction of the young caterpillar of 

 the codling-moth — giving it, by spraying, an arseniated surface 

 through which to penetrate. 



The best remedies are undoubtedly to be found in the destruction 

 of the insect, as soon as may be, after the ingathering of the crop. 

 This may be accomplished in a number of ways, among which are 

 these : 



Heat. — The beans may be thrown into hot water for nearly a 

 minute. It is stated, but we do not know if as the result of careful 

 experiment, that they will bear immersion in water at the boiling 

 point for one minute without injury to the germ. We would prefer 

 recommending hot water below the boiling point for about a half- 

 minute. Examination would show if this was sufficient. If not, 

 testing the germination of small lots would indicate if a higher tem- 

 perature or longer exposure were safe. Will not some of our 

 experiment stations make careful tests of the different varieties, the 

 more and less hardy, and report authoritatively. 



Mr. Weed, of the Ohio Agricultural Experiment Station, reports 

 that exposure to a temperature of 145° Fahr. continued for one hour, 

 killed the grubs of the pea-weevil contained in newly-ripened pease, 



