REMEDIAL MEASURES. 



53 



CARBOLIC ACID. 



Some seeds were soaked iii a 10 per cent solution ol' carbolic acid 

 overnight, were allowed to dry Tor some time, and were then planted 

 in the pots. Fifteen were planted in the cage which contamed the 

 50 larvae. This cage was broken up m 20 days and exammed, with 

 the following results: Two seeds were destroyed before gennmation; 

 seven after gennmation, and six were untouched; tlii'ee larvae were 

 dead. In the check cage three seeds were untouched; most havmg 

 been destroyed just after germination, and one larva was dead. 

 The check cages gave even less favorable results, so it seems clear that 

 the carbolic acid has little effect as a deterrent. 



CARBOLIC EMULSION. 



Carbolic emulsion was made by using the following ingredients in 

 the proportions named : ^ 



Crude carbolic acid gallons . . 5 



Whale-oil soap pounds . . 40 



Water (hot) gallons. . 40 



The seeds treated were soaked in this emulsion overnight. After 

 drying ^ hi the sun for two hours they were planted. The results of 

 the experiments are summarized m the foUowmg table: 



Table II. — Experiments with carbolic emulsion as a deterrent against the sugar-beet 



u'ireworm. 



A glance at the foregoing summary shows that while carbolic acid 

 might possibly be of value, it can not at this time be considered a 

 practical remedy for wireworms. 



TURPENTINE. 



Seeds were soaked overnight in turpentine and after bemg allowed 

 to dry were planted in the cages contammg the wireworms. The 

 turpentme had affected the seeds considerably and all of them were 

 more or less "blistered." 



1 Essig, Pomona Joum. Ent., vol. 2, no. 3, p. 252, 1910. 



2 The seeds were dried in these experiments because, if used under field conditions, they would have to 

 be treated in this manner before they could be used in a beet planter. This would be the only practical 

 way the emulsion could be applied. 



