No. 6. DEPARTMENT OF AGRICULTURE. 27 



same solution with one ounce of Lead Arsenate to the gallon is 

 advocated for flat headed apple tree borers. The highly dilute, or 

 about one gallon of concentrated solution to forty gallons water, is 

 advocated to take the place of Bordeaux mixture for all fungicidal 

 sprays except potato blight and for grapes. 



PUBLICATIONS 



The regular monthly bulletin of the Bureau was changed to a bi- 

 monthly at the beginning of the year and six issues were sent out 

 during the year. Beside this bi-monthly bulletin, circulars treating 

 on a number of phases of the work of this Department were sent 

 out during the year, and also weekly press letters appropriate to 

 the season of the year Avhen published, were sent to the newspapers of 

 the State 



i-'^» 



LECTURES 



Besides the addresses given by the orchard demonstrators and 

 inspectors, the Economic Zoologist delivered 45 lectures throughout 

 the State during the past year, many of them illustrated with lantern 

 slides from photos of this Department. 



INSPECTION OF NURbERIES 



Two hundred nurseries were inspected in the State in the last 

 year, covering .3,130 acres. This inspection is made twice a year, 

 during mid-summer and again in the latter part of the winter. The 

 reports state, that the attitude of the nurserymen is favorable to 

 this inspection and that they regard it as a benefit to themselves as 

 well as the tree buying public. 



INSPECTION OF IMPORTED PLANTS 



In order to prevent the importation of all obnoxious and injurious 

 pests, all plants and seeds in so far as possible are inspected before 

 being planted after unpacking. Dr. L. O. Howard, United States 

 Entomologist, and the United States Custom House officers regularly 

 inform this Bureau of all nursery stock, cuttings, bulbs, seedlings, 

 etc., coming into any port of entry destined for Pennsylvania. In this 

 way we keep in touch with what is being done. 



MAKING COLLECTIONS 



During 1911 there were added 1,000 specimens to our zoological 

 collection, 1,02G insect specimens, 75 invertebrates other than insects, 

 15 fishes and reptiles, 8 birds, 3 mammals, and equally as much 

 material not pertaining to any of these classes. 



INSPECTION OF ORCHARDS 



During the year 1911 twenty-five regular orchard inspectors were 

 kept in the field and they inspected 3,037 premises and 9,416 orchards. 

 Among these were 245 demonstration orchards in which 930 demon- 

 strations were given, attended by 14,092 people, and there were 

 beside these 1,064 supervision orchards which were visited 1»972 times, 

 by the inspectors. 



