UNIVERSITY OF MISSOURI COLLEGE OF AGRICULTURE 



AGRICULTURAL EXPERIMENT STATION 



COLUMBIA, MISSOURI 



CIRCULAR 101 



DECEMBER, 1920 



PLANT INSPECTION IN 

 MISSOURI 







K. C. SULLIVAN 



Plant inspection work has been carried on in a systematic manner in 

 Missouri since 1913, and it is the object of this report to give a brief sum- 

 mary of the work done since that time and the results accomplished. 



The inspection of nurseries in particular has a direct bearing upon the 

 fruit industry, for it is thru the distribution of nursery stock that our most 

 dangerous insect pests and plant diseases have been scattered from one 

 fruit-growing community to another. Unfortunately, it has been only dur- 

 ing the last few years that the full value of a systematic annual inspection 

 of nurseries and orchards has been appreciated, with the result that prior 

 to 1913 only those nurseries, which shipped stock, received annual inspec- 

 tion. In the meantime many very serious insect pests and plant diseases 

 have been introduced into the fruit-growing sections of the state. Many 

 of these pests and diseases like the San Jose Scale, crown gall and hairy 



Fig. I. A good grape nursery in southwest Missouri 



