AND OTHER INJURIOUS INSECTS OF I907 AND I908. I25 



EXPERIMENT NO. 11— BRAN AND GLUE. 



Fifty cauliflower plants were treated with a mixture of bran and glue. 

 This was made as follows: Two pounds of hard glue dissolved by boiling 

 in two gallons of water, to which were added two pecks of bran, and ap- 

 plied to the base of the plants in the same manner as the bran, Paris green 

 and glue mixture (See Exp. No. 13). Fifty plants were left untreated for 

 checks. Both treated and check rows were badly infested with cabbage 

 maggot. Counts made on these plants July 26th were as follows: 



H-^^^ "^^^^f Missing 



Treated 8 9 33 



Check 9 9 32 



In 1906, however, we personally obtained good results with what was 

 practically this mixture, and also with the following: 



EXPERIMENT NO. 12.— SAWDUST AND GLUE. 



Fifty caulijiower plants were treated with a mixture of sawdust and 

 glue. Two pounds of hard glue were dissolved by boiling in two gallons 

 of water, to which two pecks of sawdust were added, and stirred until the 

 mixture was of a consistency easily handled. One man applied this mix- 

 ture to fifty plants in fifteen minutes. Check rows containing fifty plants 

 were left untreated. This plat was badlj' infested with cabbage maggot. 

 Counts made July 26th were as follows: 



H-ds Without ,,„,,,„^ 



Treated 12 7 31 



Check 10 13 27 



EXPERIMENT NO. 13.— BRAN, PARIS GREEN AND GLUE. 



A inixture of bran, Paris green and glue was applied around the base 

 of cauliflower plants as a protection against the maggot. The glue in this 

 mixture was used in two different proportions — two pounds in one case, 

 A, and three-fourths pound in the other, B, to one gallon of water. 



A. Two lbs. hard glue dissolved by boiling in 1 gal. of water, stirring 

 into the glue 2 oz. Paris green, and one peck of bran. The mixture was 

 applied with the hands, a handful to each plant, making a circular mound 

 about 4 inches in diameter around the plant. The amount of material used 

 was more tha,n enough for the 50 plants treated. These plants were treated 

 the 18th of May. The mixture was applied at 12 noon, and by 6 p. m. was 

 well hardened. Final coimts made July 26th showed that the treatment 

 had been a total failure. In the treated rows which contained 50 plants 

 originally, there were at this date 8 plants with heads, 12 without heads, and 

 30 plants missing. The check rows started with the same number of plants, 

 showed 32 plants with heads, 17 without and one plant dead. 



B. The second mixture was applied to 40 cauliflower plants IMay 25th. 

 This consisted of 12 oz. glue, dissolved in 1 gal. water, into which was 

 stirred 2 oz. Paris green, and one peck of bran. The material was applied 

 in the same manner as above. Final counts made July 26th showed the 

 following results. In the treated row there were no heads, 3 plants living, 

 and 37 plants missing. Check row contained 3 plants with heads, 16 plants 

 without heads, and 21 plants dead. 



