Onion 



( 134) 



Onobrychis 



Selections of Varieties : 

 Main Crop : 

 White Lisbon. 

 White Spanish. 

 Bedfordshire Champion. \ 

 James's Keeping. 

 Button's Al. f 



Improved Wroxton. ) 

 Aiisa Craig (fife figure). 

 Lord Keeper (seep. 133). 

 Cocoa Nut. 

 Cranston's Excelsior. 

 Iiiwood Favourite. 

 Ne Plus Ultra. 

 Lemon Rocca. 

 Giant Rocca. 

 Flat Tripoli. 

 Bed Tripoli. 



> For early ' 



keepiug 



For exhibition. 



>For autumn sowing. 



of a fungus or mould, which discolours the foliage, 

 and prevents the bulbs swelling. Dusting with 

 lime is the best remedy, but it must be done at 

 the first sign of the pest to be effectual. 



ONISCUS. 



A genus of Oniscidese, a family of Crustacea, 

 hence allied closely to the shrimps, crabs, ami 

 spiders. Under the popular name of woodlice, or 

 slaters, the pests are familiar to gardeners. (See 

 also WOODLICE.) The Oniscidea: bear a resem- 

 blance to true insects in their general structure, 

 but they breathe by gills instead of by air tubes 

 (tracheae), and have more than three pairs of 

 jointed legs. They live in dark places, and are 

 . frequently a great nuisance in plant and fruit 

 I houses and in frames. The Orchid grower is well 



J'/tuto: VaoxtiU tfc 



ONION ArtsA CRAIG ; DANVEKS' YELLOW ON THE RIGHT. 



For Potato or underground Onions see POTATO 

 ONIONS, for Tree Onions see TREE ONIONS. 



Onion Fly. This pest (Anthomyia Ceparum) is 

 troublesome when the plants are young. Damage 

 is minimised by early sowing, so as to get the skin 

 of the leaves tough before the fly appears ; also by 

 dusting with soot when the plants are damp with 

 dew, and by spraying with a solution of a wineglass 

 of petroleum, 2 oz. Quassia chips, 2 oz. of soft soap, 

 and a gallon of water. The mixture must be kept 

 thoroughly agitated or the oil will not mix with 

 the water. 



Onion Sickness. Little is known of this disease, 

 which culminates in the crop suddenly turning 

 yellow before ripening is complete. The bulb 

 becomes detached from the roots, and every portion 

 of the plant turns rotten. 



Onion Mould. The growth of Onions is some- 

 times abruptly checked in summer by the attack 



aware of their mischievous propensities. Ripe 

 fruits, too, fall a prey to them. The three Onisci- 

 deas most injurious are asellus, greyish brown or 

 leaden blue, spotted yellow ; Porcellis scaber, slate 

 blue ; and Armadillo" vulgaris, the Pill Millipede. 

 The last-named was at one time recommended to 

 be taken as a pill, for various ailments, and asellus 

 was declared to be a remedy for ague and con- 

 sumption. (For methods of extirpation, see WOOD- 

 LICE.) 



ONOBRYCHIS. 



A large genus (ord. Leguminosa?) of herbs or 

 sub-shrubs. Very few of them are of any garden 

 value, although the Sainfoin, sativa (syn. vicia> 

 folia), is a well-known fodder plant. A field of 

 it in bloom is an exceedingly fine sight. Propaga- 

 tion, by seeds sown in spring. Any ordinary 



Onobroma (of Gtprtner, see Cardimcelltis). 



