REPORT OF STATE ENTOMOLOGIST. 



To Hon. A. W. Gilman, Commissioner of Agriculture: 



I have the honor of submitting my second annual report on the 

 injurious insects of the State for the year 1906. 



INTRODUCTORY REMARKS. 



In some respects the season has been an eventful one as 

 regards insect invasions. Letters of inquiry, asking for informa- 

 tion on all kinds of insects, from the tiny eggs of plant lice to the 

 American silk moth, Samia cecropia, have been received and 

 answered. Cocoons of the above named moth were received 

 from January ist to June 4th, and again in the fall from August 

 29 to December 31. These came from almost every section of 

 the State. The apple-tent caterpillar (Malacosoma americana) 

 was reported as being very abundant in many localities. In 

 some cases whole orchards were badly infested, large trees being 

 stripped bare, not a leaf to be seen, the apples standing out as 

 lone sentinels. In September the writer saw an average sized 

 tree which had been stripped in early summer by the above 

 named pest, trying to recover from the shock. It was putting 

 out a few small leaves while here and there appeared a number 

 of blossom clusters in full bloom. The chances are against the 

 tree ever recovering from the shock. 



The apple louse (Aphis pomi) was not as common this year as 

 last, being reported from only a few localities. The cherry-tree 

 ugly-nest (Archips cerasivorana) attracted a great deal of atten- 

 tion, as it appeared on many of the wild cherry bushes along the 

 roadsides. Many specimens were sent in with the inquiry, "Is 

 this a brown-tail moth's nest ? " 



The oyster shell bark louse (Lepidosaphes ulmi) had its usual 

 run, with many an inquiry, " Is this the San Jose scale ? " In 



