362 



STATE HORTICULTURAL SOCIETY. 



Early Wakefield — Deep 



ShaUoiv 



Premium Drumhead — Deep. 



Shallow 



Average— Deep. 



Shalloio. 



Total no. 

 plants. 



No. of 

 mature 

 heads. 



Per cent of 

 plants pro- 

 ducing 

 mature 

 heads. 



98.6 

 90.6 

 96.6 

 100. 



97.6 

 95.3 



Average 



weight per 



head. 



4.26 lbs 

 4.24 " 

 5.19 " 

 5.37 " 



4.72 

 4.80 



The average result is in favor of the shallow setting so far as weight of 

 heads is concerned, but in favor of deep setting in the percentage of plants 

 producing good or mature heads; but the differences are slight, and are 

 such as might be expected from two or more lots of plants treated in the 

 same manner. The two varieties give different results, however. The 

 Early Wakefield gives the better results from deep setting, while the 

 Drumhead gives better results from shallow setting. In view of these con- 

 flicting results, I can not look upon the differences as due to the manner 

 of setting. 



In conclusion, we find, as a result of three years' investigation, that the 

 depth at which strong and stocky cabbage plants are set does not influence 

 the extent or weight of the crop. 



L. H. Bailey. 



THE VERBENA MILDEW. 



The verbena mildew (Oidium erysiphioides), which is often very 

 destructive to house-grown plants, has been held in check in our houses by 

 the use of sulphide of potassium (^ oz. to a gallon of water). A lot of 

 thrifty and stocky young plants which were badly attacked was divided 

 into two lots for treatment, the lots being placed in separate houses. The 

 treated plants received a spray of the sulphide about twice a week, and 

 although a little of the mildew could always be found, the plants were not 

 injured. The check lot was ruined, and the plants died. It is probable 

 that copper compounds, as the ammoniacal carbonate of copper, will be 

 found still more effective, but our simple treatment was so successful that 

 we found no occasion to try any other. This mildew appears upon the 

 leaves and young shoots in white, moldlike, patches. 



L. H. Bailey. 



COMBINATIONS OF FUNGICIDES AND INSECTICIDES, 



AND SOME NEW FUNGICIDES. 



I. EXPERIMENTS AT CORNELL. 



The necessity of spraying in order to protect many of our cultivated 

 plants from insects and fungi is now an established fact. Fruitgrowers 

 particularly suffer from these enemies, for there is scarcely one of the 



