EXPERIMENT STATION BULLETINS. 



309 



an egg is deposited in a puncture about midway between the two girdlings. In 

 a short time, the cane droops and dies above the upper girdle, which drops off, 

 and leaves the segment containing the egg to wilt, furnishing the conditions 

 necessary for the development of the egg and the proper food for the new-born 

 larva. Later the larva bores down the cane, feeding on the pith and passing 

 the winter in the tunnel, afterwards changing to a pupa, and in time, to the 

 adult insect, which cuts its way out the following June. The footless larva 

 Is yellowish in color. The head is brown. 



BEMEDIES. 



The characteristic method of topping or cutting off the tops of the canes, 

 makes it easy to recognize the work of this pest. If the wilted ,tops are seen 

 In June, cut off at the lower girdling, if later, then cut off below the bottom 

 of the burrow, and burn. 



The Red-necked Agrilus, or Maker of the Gouty Gall. (Agrilus ruficolUs.) 



About pruning time, we often see swollen places in blackberry and raspberry 

 canes, the swollen parts usually showing cracks on the outside. On paring off 



Fig. 27 — Red-necked Agrilus. afterJRi- 

 ley, "American Entomologist." 



Fig. 28.— Gouty Gall, after Riley, American Entomologist. 



the skin, we find a spiral tunnel, just beneath the bark. Such swollen galls 

 or gouty galls, are produced by the larvse of a very pretty little beetle about 

 five-sixteenths of an inch long, and slender in proportion. It is bronze in color, 

 with the prothorax reddish bronze. The larva is white, flattened, and with a 

 widened thorax. The tail is forked. This pest works in both wild and culti- 

 vated plants, seeming to prefer the wild ones. 



REMEDIES. 



Cut out and burn the affected galls when pruning. See that no affected wild 

 plants are near to restock the field after it is cleared of galls. Galled canes are 

 useless, so far as good fruit is concerned, therefore no hesitation should be felt 

 in cutting them out. 



