WINE-MAKING IN CALIFORNIA. O-) 



October, when the rains fallen a few days before put an end 

 to the development. 



We had thus a continuous movement of this form coming 

 to the surface of the ground, not only from the loosened 

 earth, but as was seen later, also from the harder and unmo- 

 lested soil. This was kept up until the fibrous roots were 

 destitute of pupse, though still badly infested with young 

 larvae. 



After the discovery of the winged form in the University 

 vineyard, a considerable increase in numbers was noticed else- 

 where. Never before had it appeared so plentifully as dur- 

 ing the summer of 1884. While the peculiarly favorable 

 conditions of root growth found at Berkeley may not obtain 

 in all vineyards elsewhere, still equally favorable ones may 

 be presented. Yet, the more numerous cases of obvious 

 rapid devastation raise a strong presumption in favor of the 

 belief of a more widespread increase of this pest since, than 

 before 1884. 



Movement of Young Lame through the Soil. A peculiar 

 circumstance was noticed on the twenty-sixth of August, 1884, 

 in the appearance of a large number of larvae upon the sur- 

 face of the ground. They were found as much as two feet 

 from the st^ck, and from three to twelve inches from the 

 fine roots, as well as through the soil to the roots. The sig- 

 nificance of their appearing in this manner can be appreciated 

 when we learn that they crawl upon bits of rubbish, sticks, 

 leaves, etc., upon the spot, and even take kindly to growing 

 canes placed in their way. 



Just how far they can travel on the surface of the ground 

 in this manner we are not able to say, but certainly it in- 

 creases the probability of their being transported upon boxes 

 and loose packages which are scattered so promiscuously 

 about the vineyard .at that time of the year. It further shows 

 that the insect is not altogether dependent upon interlacing 



