12 THE CABBAGE MAGGOT. 



July 6th treated and untreated plants made about the same 

 showing. The location was breezy, and where cultivation 

 the previous fall had destroyed the standing stalks of the 

 year before. The maggot was not bad here and hence there 

 was no chance for a comparison. 



On Cabbage: a. Earth hollowed : 



Plat No. I : Applications May 30 and June 5. On June 

 7 examination of these plants disclosed the fact that although 

 all the maggots were not killed by this solution, the plants 

 were making a good showing. 



b. Earth not hollowed. 



Plat No. I : First application May 30. Examination 

 June 2 showed presence of maggots, and earth was hollowed 

 and second application made. On June 22nd all these plants 

 had perished, killed by the maggot. It is very evident that 

 although this solution may kill or drive away the maggot, 

 it works an injury if applied to very young plants. 



White Hellebore, Dry. Early Radish : Application May 

 22nd, May 28th and June 5th. On June 22nd these were 

 ready for market, and neither treated plants nor checks 

 showed evidence of work of maggot. That this was in part 

 due to location is indicated by the fact that radishes of the 

 same date about a quarter of a mile away, in private gardens, 

 were badly eaten. 



Late Radishes: Dusted June 23rd. (Series II). July 

 1 6th we found no maggots either in the treated or untreated 

 plants. 



White Hellebore and Water. (Series II). Roots dipped 

 in same. The roots of 44 plants dipped June 23rd in a 

 mixture of hellebore i part and hot water 2 parts. This was 

 allowed to cool before plants were treated, and they were 

 immersed deep enough to also coat the lower part of the 

 stems. They were immediately planted and made an excel- 

 lent showing. On October ist every plant was standing. 

 White hellebore costs about 15c at wholesale. 



Sawdust and Glue. The literature upon this pest does 

 not indicate that this has been tried before, and it was sug- 

 gested to the writer from his conviction that we must look 

 to preventive measures for best results, rather than attempt 

 to destroy the maggots when in or close to the stalk. There 

 is no question but that carbolic emulsion at the proper strength, 



