June, '21] SMITH : FALL ARMY WORM 303 



suggested a trial with this one. Table I gives a list of the plats sown 

 and the percent of control obtained based on counts of living and dead 

 larvae. Conditions in the alfalfa fields where these plats were located 

 were very similar if not identical. Death of larvae, due to natural 

 causes, averaged 3.2 per cent in these plats. The percentages in the 

 table were computed on the total counts of three individuals, the writer 

 having been one of them. 



Table I - Experiments and Percent of Control Obtained 



>A commercial preparation, made by the Exchange Orange Products Co. One-fifth of a can was used 

 'Larvae were rapidly entering ground for pupation at this time. * 



The regular bran mash mixture made with Paris green gave excel- 

 lent results. It is interesting to note that this mixture gave approxi- 

 mately the same results where the lemons were used according to the 

 formula, where omitted, and where the number was doubled. It was 

 observed that dead larvae were more often found where bran mash 

 particles could be seen on the ground. A lower percent of control was 

 obtained on the plats where sawdust was substituted for bran. The 

 sawdust mixtures were distinctly less palatable to the larvae. It was 

 a common occurrence to see larvae crawl over these mixtures without 

 feeding, but in the case of the regular bran mash, they fed much more 

 freely. The sawdust, however, was not above criticism. It was ob- 

 tained at the college carpenter shop and consisted of a variety of kinds, 

 pine probably predominating. In addition to the probable repellent 

 odor of pine, some of it was somewhat coarser than desired.' 



•Davis, J. J., and Turner, C. F., 1918. Experiments with Cutworm Baits. Can- 

 adian Ent., 50:187-192. 



