54 HOPS. 



the rootstock dying of decay. Four to eight larvae have 

 been found on one cutting in the early part of the year, and 

 a larger number are often met with on the rootstock itself, 

 and they are hard to get rid of. 



" They are most plentiful in light soils, less so in heavy 

 land, and appear to live on the roots for several years, having 

 been found contemporaneously in various stages of develop- 

 ment, as v?ell as pupae and perfect insects. The latter 

 appear to make their vpay up into the bine at about the end 

 of July." 



Of late years the beetle has been so abundant in Styria 

 that the authorities prohibited the export of cuttings from 

 the southern district in order to restrict the spread of the 

 pest. 



According to Hiendlmayer^ the beetle is pitch-black or 

 brown in colour, dotted about here and there with a few 

 greyish yellow scales. The proboscis is deeply pitted, with 

 three fine, raised longitudinal lines ; the thorax greater in 

 length than breadth, very rough and wrinkled, with a raised, 

 wedge-shaped central line ; elytra pitted, with granular 

 stripes, the suture and the alternating interstices of the 

 stripes being more prominent than the rest, whilst the ex- 

 terior ones are fused together towards the rear into a light, 

 scaly callosity. The limbs are all dentated near the ex- 

 tremities. The beetle is | to | inch long. The larvae, 

 which are | inch long, have pitch-brown heads and black 

 maxillaries, the body being ivory-yellow. Two brown tufts, 

 forming four rows, are placed on each ring, on both sides of 

 the dorsal line, and, in addition, each of the pro-legs carries 

 a similar tuft. 



To ascertain with certainty whether a hop garden is 

 really infected, it is necessary to sacrifice a few plants by 



1 Zeitschrift fUr das gesammte Brauwesen, 1893, No. 37. 



