VARIOUS FARM PRODUCTS 545 



This should result from an examination of seeds used if the appear- 

 ance of the dodder seed is known. (Nev. Bui. 15.) 



The Wild Onion or Wild Garlic (Allium Vineale L.). This 

 is one of the worst weeds to eradicate after it has once gained a 

 foothold, being propagated by underground bulbs, aerial bulblets, 

 and in some sections by seeds. (U. S. Dept. Agr. B. P. I. Bui. 

 100.) 



The Wild Onion, also known as Field Garlic, Crow Garlic and 

 Crow Allium, is considered by many the vilest weed pest common to 

 the sections where it grows. It is a frequent occurrence for the 

 Experiment Station to receive letters from farmers relative to this 

 pernicious weed. Complaints are made as to the trouble which it 

 gives in dairying, and information is eagerly sought as to how it 

 may be successfully combated. (Tenn. Bui. 2, Vol VIII.) 



This is the only plant with onion-like scent common in fields. 

 It produces an abundance of bulbs or sets deep in the soil and a 

 cluster of bulblets in place of seed. There are two types of under- 

 ground sets, one with a hard coating and capable of living for a 

 long time in the soil and softer ones which usually produce the next 

 year's growth. These methods of propagation spread it freely and 

 permanently and the disagreeable flavor it imparts to milk from 

 cows grazing in fields where it grows and to flour from wheat con- 

 taining the bulblets, make it a most formidable pest to dairymen 

 and grain growers. It is probably scattered chiefly by the bulblets 

 in seed grain but seeds are sometimes produced. It can be removed 

 from wheat by fanning, preferably after drying. It can be kept 

 down in fields by deep fall plowing to prevent winter growth of 

 leaves, followed by a smothering crop. In a field on the Experi- 

 ment Station farm plowed last December, garlic is entirely absent 

 while it is very abundant on adjacent parts of the field plowed in 

 the fall. (Maryland Agr. Exp. Sta. Bui. 155.) 



In the following tabulated pages are mentioned one hundred 

 varieties of weeds: 



