EXPBRIMPJNT STATION BULLETINS. 



291 



A test of arsenate of lead iu heavy doses was also made at the same 

 time. A certain portion of the vineyard was sprayed with arsenate, 

 using four pounds to the barrel of water. The ordinary prepared paste 

 was used. We started with a well-stirred charge, but owing to the 

 ineflSciency of the agitator, the application was far stronger at the part 

 first sprayed than when farther along. 



As to the results of the spray, Mr. E. V. Hayden, in whose vineyard 

 the test was made, writes in substance, under date of October 26th: 

 "In the north block where the spray was strong, the unsprayed rows 

 averaged a little more than half as much as the average of the two 

 rows that were sprayed. The beetles had been at work for a week 

 when the spray was applied. No injury to the vines resulted from the 

 strongest of the mixture." 



This looks very encouraging, but the groAver must always keep in 

 mind that the spraying must be done thoroughly, everything must be 

 hit and all parts of the vine washed with the mixture. Also use a 

 pump with an agitator which will w^ork when the pump is moving 

 slowly. 



ANOMALA ON APPLE. 



(Anomala hinotata.) 



On the 5th of June, 1907, a 



Fig. 12. — Apple Anomala, natural size 

 and enlarged. Original. 



part, polished black, except for 

 bronzy straw color, the feet 

 underside of the bodv is coated 



lot of small beetles were received from 

 Mr. W. T. Welch, of Paw Paw, who 

 reported that the beetles were be- 

 coming serious to young apple trees. 

 A visit to Paw Paw was made on the 

 7th and numbers of the beetles were 

 seen, both at the farm of Mr. Welch 

 and on nearby farms. The beetles 

 were feeding on apple foliage and 

 their work was, of course, most 

 noticeable when the trees attacked 

 were of small size. Young trees of 

 one year suffered most. Numbers of 

 beetles were found beneath the sur- 

 face of the soil near the bases of 

 these young trees. 



The beetles measure about 7-16 of 

 an inch in length. They are stout 

 and resemble their relative, the June- 

 beetle in form, also like the June- 

 beetles, they ai-e clumsy in their move- 

 ments. In color they are for the most 



the wing-covers, which are washed with 



and antennae being dark brown. The 



with fine light hairs. 



