No. 123.] REPORT OF COMINIISSIONER. 19 



Nursery Inspection. 



The work of the nursery inspection service has been chiefly 

 concerned with the nursery inspection proper, the white pine 

 bhster rust and the European corn borer. The usual inspec- 

 tions for pests and diseases have been made in the nurseries, 

 together with inspections of interstate and foreign shipments. 

 The nurseries were found to be in excellent condition, and the 

 interstate shipments in most cases up to our standard. The 

 Federal Horticultural Board made effective quarantine No. 37, 

 which prohibited after June 30, 1919, the further importation 

 of foreign nursery stock. This naturally increased the amount 

 of stock brought in this spring and necessitated a larger inspec- 

 tion force. Many insects were intercepted on this stock, and 

 while some of them were already established in this country, 

 others were entirely new and might have caused serious depre- 

 dations if allowed to enter. 



The white pine blister rust work was conducted under the 

 direction of Mr. Carl C. Perry. Considerable work was done 

 in the eradication of Ribes in the town of Marshfield; also the 

 co-operation of the director of the School of Forestry of Har- 

 vard University was secured and §500 was contributed through 

 his efforts for the examination of the lands owned by the uni- 

 versity in Petersham. In connection with this work on the Har- 

 vard Forest similar work was performed on an adjoining estate, 

 for which $125 was appropriated by the owner. By an arrange- 

 ment with the State Forester, $500 was made available for con- 

 trol work on certain plantations set out in 1909 by the Forestry 

 Department. 



In the town of North Andover an appropriation of $450 was 

 pledged by certain property owners for the protection of pine 

 upon their estates. In this co-operative work the funds of the 

 local co-operators were met by an equal amount by this De- 

 partment, and, in addition, Federal funds were available to 

 match the combined appropriations of the local co-operator and 

 the State Department. This co-operation on the part of in- 

 dividuals is very gratifying, and it is to be hoped that it will be 

 continued while funds are available for this purpose. 



An active campaign has been carried on against the European 



