EXPERIMENT STATION BULLETINS. 



503 



Varieties. 



Glory of Enkhousen 



Danish Railhead 



Dutch Winter 



Twentieth Century 



Early Jersey Wakefield . . 

 Danish Summer Ballhead 



Marvin's Savoy 



New Savoy Iron Head... 

 Mammoth Rock Red 



Yield per 

 acre 

 in lbs. 



31,462} 

 20,0791-10 

 23,563 6-7 

 18,585 4-7 

 25,090 4-7 

 1.8,917i 

 10,20.5i 

 13,9.39 1-5 

 25,887 1-10 



Cauliflower. Two varieties were tested, nearly all plants producing heads of 

 fair size. Early Snowball ripens in late summer, the heads being medium to large, 

 solid and of a creamy white color. Model, a medium late variety with heads 

 small to medium size, very solid, pure white and very tender. 



Celery. The variety Rose Ribbed Paris Self Blanching was tested on the same 

 plot with the late varieties of cabbage. Part of the plot was too wet in September 

 and about one-quarter of the plants remained under sized. The plants upon the 

 dryer portion matured well and averaged 24 inches high, being well blanched and 

 free from rilst. The seed was poor, for nearly one-half of the stalks were pithy. 

 The rest were crisp, tender, with good flavor and quite free from stringiness. The 

 golden yellow color of the stalks with the ribs a bright pink, give this variety 

 a handsome appearance. Giant Prague Geleriac was tested on the same plot. The 

 plants made a rank growth, but the seed was worthless, for no bulbs developed. 



Onions. The results with all varieties were practically destroyed by the onion 

 maggot. Judging from the increasing number of letters received askng for relief, 

 it seems evident that the damage from the maggot is of recent origin in the 

 Upper Peninsula, and for two or three years past has been extending over a 

 good share of the territory. It was thought at first that the maggot propagates 

 on the wild leeks which happen to be unusually abundant in the neighboring 

 woods of nearly all localities from which the damage has been reported. Ex- 

 tensive observations during the past two seasons lead to the conclusion that the 

 maggot does not propagate in the wild leeks nor in the cultivated leeks which 

 have been purposely left in the ground over winter. Neither has evidence of 

 their work been discovered on perennial onions which have been planted here in 

 May, 1903, and have been growing unharmed ever since. As it seemed evident 

 from the letters received and from observations taken here that the maggot is 

 being introduced in onion sets shipped in from outside points, about two dozen 

 of the sets, received April, 1904, were wrapped in damp moss, securely tied in 

 strong paper bags and kept warm enough for rapid sprouting. When inspected 

 two weeks after, four of the sets were found to be free from maggots and the 

 others, or 22 had each from 2 to 8 maggots. While no tests were made with 

 top sets, it seems evident from field observations of the past tw^o seasons, that 

 these varieties are more, if not entirely, immune. It is not believed at least 

 that the maggots propagate in the tops of the perennial onions planted in 1903, 

 for about a .peck of the tops were gathered during the fall of 1904 with the 

 intention of sprouting about 25 of the sets during each month until the following 

 spring. At this writing two monthly tests have been made, and no maggot has 

 as yet been found. It remains to be determined whether the maggot can be 

 destroyed before planting the sets and without injury to the plants. Of the 

 methods now known for fighting this pest none has proven entirely successful 

 here, nor is any at all profitable with the exception of gathering all cull onions 

 after harvest and destroying them either during fall or very early during the 

 following spring. 



Leeks. Two varieties were planted May 5. Large Musselburg is a medium early 

 variety. The leaves are broad, erect and pale .green. The stalks are tender, bleach 

 well, range from 1 to 11-2 inches in diameter and average 15 inches high. Biil- 

 garian Winter is a later variety with smaller leaves of a dark green color. The 

 stalks bleach rapidly, average one inch in diameter and 12 inches high. When 

 hilled up for bleaching, leeks may be left in the ground for harvesting during the 



