REPORT 01^ state: entomologist. 301 



Flat-headed apple borer, Chrysobothris femorata. Fig. 17. 

 This borer is more apt to be found where an injury occurs in 

 the bark or where it has been winter-killed. They are liable to 

 be found on almost any part of the tree, where the above con- 

 ditions prevail. If the trees are examined each year and prop- 

 erly cared for there is no special danger from these insects. 



INFESTING THE BARK. 



Bark lice. Of the different species of bark lice infesting the 

 apple trees of Maine, the oyster-shell, Lepidosaphcs ulmi, is 

 by far the worst pest of its kind we have to contend with. As 

 the life history of this insect was given in my last annual report 

 we will give only a brief summary of its treatment. 



The young hatch from the eggs, which have remained under 

 the scales during the winter, about the middle of June or later, 

 depending on the season, and in a short time become fixed, a 

 new scale forming over them. They can be easily detected if 

 the trees are carefully examined. They will be seen as minute 

 specks moving quickly about on the trunk and branches. 



They can be easily destroyed by thoroughly washing the trees 

 during the fall, winter, or spring with whale oil soap solution, 

 or spraying the trees at the time the young hatch out, before 

 they get fixed on the tree, with kerosene emulsion. 



San Jose scale, Aspidiotus perniciosus. We are so anxious 

 regarding this scale that we wish to say a word in relation to it. 



In my report of last year I gave a complete life history, fully 

 illustrated, of this pest. We urge every orchardist of the State 

 to send in to the department any questionable scale or insect 

 found working on or in their orchard. It would be a great 

 calamity indeed should this insect gain a foothold in the State. 



INEESTING THE BUDS. 



Bud moth, Tmetocera ocellana. This little orchard pest is 

 very common all over the State. The caterpillars spin fine 

 silken threads to draw the small leaves together around the 

 blossoms. They destroy many of the fruit buds and later the 

 young fruit. They reach their growth about the middle of June 

 or later, then change to the pupa stage and hatch into the moth. 



