416 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



this needs testing, as they are fairly well protected. The larvae 

 may be readily killed with arsenical sprays, and if arsenate of 

 lead were applied at the rate of 3 pounds per barrel just as the 

 plants commence to flower, it would undoubtedly control the 

 pest with no possibility of spotting the fruit, or Paris green with 

 Bordeaux mixture might be used in the same way. If careful 

 watch is kept for the pest it can probably be detected in time to 

 apply the arsenicals, which will be much the easiest and most 

 effective to use, but if not observed until the canes are fruiting 

 they should be sprayed with hellebore, 1 ounce to 1 gallon of 

 water. Hellebore may be dusted on the plants mixed with twice 

 its weight of flour, but the spraying may be done more thoroughly. 



The Raspberry Byturus * 



The Raspberry Byturus is a small brown beetle belonging 

 to the same family as the larder and carpet beetles, most of which 

 feed on animal matter. It is about one-seventh inch long, red- 

 dish-yellow or reddish-brown, 

 and covered with a thick coat 

 of pale, tawny hairs. The 

 beetles appear about the midde 

 of May in northern Ohio . They 



feed on the tender foliage and 

 FIG. 350. Larva and adult of the 



raspberry byturus enlarged. (After eat into the nower buds, and 

 Goodwin.) sometimes emerge in such 



numbers that the young foliage is skeletonized and many of the 

 flower buds do not develop. Though the eggs are laid in June, 

 they have not been observed. The larvae appear in late June and 

 July and feed in the fleshy head on which the berry is born, caus- 

 ing the affected berries to ripen earlier, making them small and 

 unfit for market. Furthermore the little larvae not infrequently 

 remain in the cup of the berry, which necessitates picking the 

 berries over and injures their sale. The larva is about one- 

 quarter inch long, rather plump and cylindrical, and tapering 

 at each end. The body is white, but each segment is marked 

 across the back with a broad, tawny yellow band, and numerous 



* Byturus unicolor Say. Family Dermestidce. See W. H. Goodwin, 

 Bulletin 202, Ohio Agr. Exp. Sta. 



