June, '17] 



LOVETT: NICOTINE AN INSECT POISON 



Codling Moth Experiment with Nicotine .Sulphate 



{Cydia pomonella) 



(Total count 20,396 apples) 



337 



Nicotine sulphate 1-400 gave approximately one-half control or 15.31 

 per cent worms. The dust application gave by far the best control, 

 showing only 8.6 per cent worms. The foliage of the dusted trees 

 showed to an advantage. This material also checked the scab to a 

 very fair degree, though the work was started too late to afford satis- 

 factory control here. 



1916. McIndoo, N. E. Effects of Nicotine as an Insecticide. Jour. Agri. Research, 



VII, pp. 89-121. 1916. 

 1916. DeSellem, F. E. Nicotine Sulphate for the Control of the Codling Moth. 



Yakima County Hort. Rept. 1916, pp. 62-72. 



Chaieman a. W. Morrill: The next paper by Prof. C. P. Gillette 

 and L. C. Bragg will be read by the secretary. 



