No. 6. DEPARTMENT OF AGRICULTURE. 25 



3d. — ''That inter-state co-operation for the control of horticultural 

 pests whose area of destruction extends across State lines, is most 

 desirable, and should be as complete as the laws of the States con- 

 cerned will permit, and that in the treatment of any particular pest, 

 preference should be given to such cases. 



4th. — "That it is the sense of this body that the nurserymen should 

 not be required to pay the expense of the ordinary inspection of 

 nursery stock. 



5th. — "Thflt the entire cost of insecticide or fungicide measures 

 required by law, should be borne by the owner of the affected prop 

 erty. 



6th. — ''That in the opinion of this meeting, nursery stock fumi- 

 gated according to accepted requirements, should be considered as 

 satisfactory as stock sold under certificates of inspection only." 



The last resolution was adopted with the understanding that fumi 

 gation is not to supplant, but rather to supplement inspection. The 

 resolutions are quoted in full and show how far the best scientific 

 experts have gone in the matter of nursery inspection, and in the 

 treatment by rumigation, of nursery stock. 



The action quoted, taken in connection with the report of the 

 committee appointed to consider the question of the best insecticides 

 to use for the destruction of San Jos^ Scale in orchards and nuseries 

 in this country, made at the meeting in Washington in November, 

 1901, makes clear the position of the leading authorities on the 

 subject of the control of San Jos^ Scale. The report of the com- 

 mittee is as follows: 



"The committee after due consideration finds itself able to agree 

 upon the following recommendations for treatment: 



1st. — "For Nurseries: Proper fumigation with hydrocyanic acid 

 gas after inspection. 



2d. — "For Orchards: Late summer and fall treatment with dilute 

 solutions of insecticide soaps, oils or other effective insecticides to 

 kill young scales. Winter treatment, with insecticide soaps or 

 oils sufiiciently strong to kill the scale, which have been proved safe 

 to trees of all kinds in the region where the application is to be 

 made." 



NURSERIES IN PENNSYLVANIA. 



Pennsylvania is deeply interested in this subject, for we have 

 145 nurseries, with a total acreage of 2,720^ acres. Of this acreage 

 our inspectors report, as being in very good condition, 1,738| acres; 

 in good condition, 505 acres; in fair condition, 224^ acres; and in 

 poor condition, 252^ acres. There were 135 certificates granted, and 

 10 refused. 



