522 BOARD OF AGRICULTURE. 



diseases, notably the San Jose scale (Aspidiotus perniciosus, Comstock), 

 which has caused so many thousands of dollars of damage to the orchards 

 of the State by having been introduced upon nursery stock, and (2) to 

 prevent the further spread of these pests by providing some means of 

 eradicating them from localities where they had already become estab- 

 lished. 



In order to accomplish the first result the law requires all nursery 

 stock which is shipped into this State from other States to be accompanied 

 by a certificate bearing the signature of the State or Government Ento- 

 mologist and stating that said nursery stock has been duly inspected 

 according to law. And, as a further precaution, all nurserymen within 

 the State are required to attach a similar certificate to stock sent out 

 from their respective nurseries. 



In the second place it is made the duty of the State Entomologist to 

 inspect all nurseries in the State, at least once each year, and also to 

 inspect infested orchards, or those thought to be infested with San Jose 

 scale, etc., prescribe remedies for their ti-eatment, and see that these 

 remedies are properly administered. It is also manifestly his duty to 

 investigate all other outbreaks of injurious insects as they may occur 

 from time to time, and to assist whenever and wherever possible in hold- 

 ing them in check. As the San .Jose scale had become well established 

 in several localities in the State before the law was passed, the problem 

 of eradication of this insect has been the most serious one with which we 

 have had to deal. 



Nursery Inspection. 



My corps of assistants for the past year has been the same as last 

 (1901), except Mr. J. Clyde Marquis, a student of entomology in Purdue 

 University, was appointed in the place of Taylor Fonts, resigned. Dur- 

 ing the inspection period, which extends from June 1 to October 1, we 

 have inspected IGO nurseries, which are distributed over fifty-eight coun- 

 ties, extending from the Ohio river to the Michigan line. All except one 

 were found to be apparently free from all dangerously injurious insects 

 or plant diseases and have been gi-anted certificates. The one excepted is 

 located in an infested district with San Jose scale all around it, and a few 

 infested trees were found in it. For this reason a certificate was with- 

 held. 



Scale-Infested Localities. 



Last year I reported the San Jose scale as having been found in 

 twenty-four counties. To these Montgomery has been added, making 

 twenty-five counties in which the scale has been found to date. Of these 

 only four are considein?d at all serious. Tliese are Marion, Switzerland, 

 Washington and Vanderburgh. Nine of the originally infested counties 

 are, to the best of my knowledge and belief, practically free from the 



