SUMMARY OF DISTRIBUTIOK AKD PRESENT CONDITIOK. 23 



Moscow and Rathdrum, tho this altitude (2,500 feet) is not more than at Weiser and 

 Boise. Possibly greater rainfall in these last districts discourages it. At any rate, 

 while it has existed at Lewiston for fifteen years, it has not ascended to Genesee, 12 

 miles distant, but nearly 1,800 feet higher. 



In many places it is being well controlled in the orchards, where careful and sys- 

 tematic spraying with lime-sulfur spray is done. 



ILLINOIS. • 



The San Jose scale was located in Illinois in 1896 by Professor 

 Forbes, who, at the end of the following year, had found the scale in 

 22 colonies in 11 counties, as reported in Bulletin 12 of this Bureau. 

 In a recent letter Professor Forbes gives the details of the present 

 infestation, which may be briefly summarized as follows: One-half of 

 the counties (51 of the 102) of the State are now known to be more or 

 less infested, but 43 per cent of the infested orchards are included in 

 2 of these counties and 80 per cent in 5 counties, and in 30 of the 

 counties listed the average number of infested orchards is but 3^. 

 In four of the counties the infestation is found only in one or more 

 towns and not in orchards. It will be seen from this statement that 

 while the San Jose scale is pretty widely scattered thruout the State, 

 as it is also in adjoining States, it is far from having gained a gen- 

 eral foothold save in a few counties, and even in the worst counties 

 infestation is not yet general. In no States has inspection and reme- 

 dial work been carried out more thorol}^ than in Illinois, and this 

 accounts for the rather favorable conditions, in view of the fact that 

 probably nearly all of the infested orchards and districts have been 

 located. 



INDIANA. 



The first case of infestation was brought to our attention in May, 

 1894, and subsequent records are indicated in Bulletins 3 and 12. As 

 indicated in a map sent by Prof. J. Troop, horticulturist of the State 

 experiment station, the scale is now distributed over the entire State, 

 occurring, however, in less than half of the counties. It occurs in 

 all the Ohio River counties, and Yanderburg is indicated as the one 

 worst infested. 



IOWA. 



Iowa hitherto has been one of the western States supposedly free 

 from the San Jose scale. The State entomologist, Mr. H. E. Summers, 

 reports that he now knows of but one infested point in the State, con- 

 fined to a single orchard in Louisa County. Some other cases of 

 introduction of the scale were discovered a few years ago, but were 

 treated in such a thoro way that reinspection during the last three 

 years has shown no further development of scale. No San Jose scale 

 has been found in any nursery in the State. 



