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228 JOURNAL OF FCONOMIC ENTOMOLOGY [Vol. 9 



brought to the packing grounds to be fumigated. By these several 

 inspections we endeavor to locate all infested trees, and then take 

 the extra precaution of supervising fumigation work. 



An inspection is also made during the summer of premises adjacent 

 to blocks of nursery stock and treatment of infested trees is required 

 so far as practical and where there is danger, by the location of in- 

 fested trees, of their being a source of infestation to nursery blocks. An 

 inspection is again made of these premises during the dormant period 

 and a thorough spraying is enforced. Should owners neglect to apply 

 this treatment in specified time, the work is done under the supervision 

 of inspectors and the costs placed upon the tax duplicate of the owner. 



Several hundred dollars worth of this kind of work has often been 

 done under our supervision around different nurseries. 



We have never strongly favored, except under unusual conditions 

 and in extreme cases, the summer treatment of nursery blocks. With 

 a slig'ht infestation we prefer to carefully inspect and re-inspect such 

 blocks, remove all infested trees and rely upon our fumigation system 

 for the protection of the purchaser. 



When fumigation work is left to the nurseryman at least one and 

 quite often all of the essentials necessary in thorough fumigation are 

 liable to be overlooked and disregarded. There are a number of things 

 which will prevent even the most careful and conscientious nurseryman 

 from performing this work as it should be done for best results. I feel 

 sure that Mr. Burgess in his work in Ohio early realized the necessity 

 for official supervision of this work. It was no easy task to get our 

 nurserymen accustomed to this plan. When first adopted it caused 

 considerable delay to the nurserymen while waiting for inspectors to 

 supervise the work. After the system became well organized and the 

 nurserymen had become accustomed to the practice, it was carried out 

 with but little delay to them. Such work is made easily possible in 

 Ohio by the excellent transportation system of the state and largely by 

 the fact that our larger nurseries are grouped in several sections of the 

 state. One or more inspectors are located in each section. Nursery- 

 men keep them advised by phone of probable time that thej^ will be 

 needed and in this way they can plan their work and render prompt 

 service. One inspector can usually take care of those scattered about 

 the state. 



Before the shipping season begins, nurserymen are required to go 

 over their fumigating houses carefully and put them in perfect order. 

 Inspectors then test each house with smoke and refuse to use any that 

 have not been made perfectly gas tight. We often find that a house 

 gets out of repair during the shipping season and it is immediately 

 ordered placed in condition. The weakness, of course, is usually at 



