April, '22] GREENHOUSE INSPECTION, DISCUSSION 155 



various states at this meeting are of the opinion that we are taking 

 unnecessary precautions. Would you be willing to accept the material 

 which is distributed from the greenhouses in question with one inspection 

 a year, or two or three inspections a year ; or do you think we have adopt- 

 ed the right policy in inspecting at the time of shipment? 



If we are going to ship material from a greenhouse, what kind of a 

 certificate should we use? Are the state inspectors going to* accept 

 qualified certification? Would you accept plants from us if you knew 

 they were infested with the common greenhouse insects? As most of 

 you no doubt know, we now have a law in the District of Columbia 

 which requires that all plants entering should be inspected and certified. 

 We have an inspector at the post office, the express office, and the freight 

 office, and during the past two months one hundred and twenty-two 

 shipments have passed through the post office and express office which 

 did not bear certificates of inspection, and thirty-five of these shipments 

 were infested with common greenhouse insects such as the common 

 mealy bug, greenhouse white fly, etc. 



I think I am safe in assuming that very few, if any, of the states are 

 inspecting, and if they are, they are not certifying material which is 

 distributed from greenhouses. 



Mr. F. N. Wallace: I would like to ask Mr. Hamed if they 

 are going to pay attention to greenhouse stock down in Mississippi. 



Mr. Harned: All plants coming into the state have to go to one 

 of the parcels post inspection stations and are there inspected. We 

 have six of them in the state. Our quarantine inspectors get most of 

 the things that come in on trains, greenhouse plants included. 



Mr. J. J. Davis: At a meeting at La Fayette last winter, of the 

 entomologists of Missouri, Illinois, Ohio, and Indiana, this matter was 

 briefly discussed^ and in our mimeographed report we made a statement 

 regarding greenhouse inspection work. I don't recall the exact state- 

 ment, but it was to the effect that very probably we could divide the 

 insects of the greenhouse into two distinct classes — those generally 

 distributed throughout the United States, and those which had a com- 

 paratively local distribution. In discussing this matter, it seemed 

 desirable that those with local distribution should be restricted; that 

 is, that plants infested with the insects of local distribution be restricted 

 from shipment, and that restrictions should also apply to our common 

 insects where the infestation was serious. But where the infestation 

 was very light and normal, there probably need be no further restrictions 

 on shipments from state to state. 



