362 



EXPERIMENTAL FARMS 



4-5 EDWARD VII., A. 1905 



The following table gives the rainfall and tlie date on which the rains occurred 

 from March 31 to December 1, 1904:— 



RAINFALL, 1904. 



The total Rainfall for the same period in 1903 was : — 

 . 3-57 1 .. 0-68 I .. 2-29 I .. 207 .. 240 



3-63 



5^78 



7.98 



CABBAGE BOOT MAGGOT. 



The Cabbage Boot Maggot has given considerable trouble during the past few 

 years, but this season they were much more numerous than usual, and proved very 

 destructive to all the plots of cabbage and cauliflowers, except two plots where hellebore 

 was used. An examination of the cabbage plots early in June showed that many eggs 

 were being deposited near the surface of the ground at the base of the plant. Exi)eri- 

 ments were tried with various mixtures to determine their effect in controlling this 

 pest. Accordingly nine plots were staked off containing 100 plants each. These plants 

 were in a fairly vigorous state, having been set early in May. The plots were treated 

 with the following mixtures : — 



No. 1. — Hellebore 2 oz. to 1 gallon of water. 



No. 2. — Hellebore 4 oz. to 1 gallon of water. 



No. 3. — Kerosene emulsion, 1 part kerosene oil to 4 parts water. 



No. 4. — Kerosene emulsion, 1 part kerosene oil to 6 parts water. 



No. 5. — Kerosene emulsion, 1 part kerosene oil to 9 parts water. 



No. 6. — Kerosene emulsion, 1 part kerosene oil to 12 parts water. 



No. 7. — ^Baris green 2 oz. to 10 gallons water. 



No. 8. — Tar paper disks. 



No. 9. — No treatment. 



These plots were treated June 18. An examination of a number of the cabbages 

 at this date was made and no maggots could be seen. Some young maggots were found 

 and eggs were being hatched around some of the cauliflowers at this date. The cauli- 

 flowers, however, were not included in this test. Notes were taken July 7, 14 and 

 Augiist 16. A summary of the data collected is given in the following table: — 



