448 FOKTY-EIGHTH KEPOET ON THE STATE MUSEUM 



as " the corrosive sublimate treatment " and was proposed by Prof. 

 Bolley, in 1891, in Bulletin No. 4 of the North Dakota Agricultural 

 Experiment Station, on " Potato Scab and Possibilities of Prevention." 

 The directions are: Dissolve two ounces of finely pulverized corrosive 

 sublimate in two gallons of hot water and let it stand over night or 

 until all dissolved. Pour it into a barrel containing thirteen gallons of 

 water and allow it to stand for four or five hours, stirring it several 

 times thoroughly. Selecting as fair seed potatoes as possible, wash all 

 the dirt from them and immerse as many as you can in the solution for 

 one hour and a half. Pour off the solution, which may be used several 

 times if needed. After the potatoes are dry, cut and plant as usual, 

 or they may be cut before the treatment if preferred. The corrosive 

 sublimate is a strong poison and should be used with care. The solu- 

 tion named is the same as used in surgery and will not injure unless 

 taken into the stomach. 



Remedies for Thousand-Legged Worms. 



The injuries of the JolidcB have long been known and borne without 

 the discovery of any simple remedy or preventive. Where they are 

 very abundant the ground might be treated in the autumn with a lib- 

 eral coating of gas-lime if obtainable. Salt freely applied broadcast 

 or dropped over each hill after planting should make the tuber or the 

 stalk distasteful to the worm, as it does the roots of young corn to the 

 white grub. Application of soot and water has been recommended 

 by English writers, but it would be difficult to procure it in 

 suflicient quantity for use in large fields. Dr. Smith, Entomologist 

 of New Jersey, has had excellent results in treating infested 

 crops with potash and with kainit. Of the latter he states: " Where 

 potato ground is infested with wire-worm {Jahis), a heavy dressing 

 with kainit will bring relief; " and of potash — " it is effective against 

 * * * the wire-worms [Julus) on potatoes."* Although the 

 quotations leave us in doubt whether wire-worms or Julidm were 

 experimented with, the applications should be equally successful with 

 either, as their habits are much alike. Kainit was found to be the 

 more valuable as an insecticide, especially against wire-worms. 



In a communication on " The Thousand-legged Worm," by Dr. Fitch, 

 to the Country Gentleman of July 14, 1859, p. 27, it is stated that 

 thousands of a species of Julus (not determined) had been destroyed 

 by hot water after they had been drawn to shelter beneath boards laid 

 on the walks in the evening. The boards might prove more effective 



* Annual Report New Jersey Agricultural Station for the Year 1890, 1891, page 436. 



