Symptoms 



Nectarine. See Peach. 



Nymphaea. 



Foliage. — Holes with decaying tissues around 

 them. Ramularia nymphaearum. Remove 

 diseased leaves, and maintain stream of slowly 

 running water. 



Oak. 



Stem. — Several bracket-like fungus fruits 

 appear on stems of oak, when the fungi them- 

 selves are growing in and causing the decay of 

 the wood. These fruits should be cut away 

 and burned as soon as seen. 



Foliage. — Leaves and yoimg shoots covered 

 with powdery white fvmgus growth. MUdew 

 due to Oidium sp. No remedy can be effec- 

 tively applied. 



Onion. 



Foliage. — Greyish-lilac tufts on foUage, some- 

 times entirely covering it. Onion mould, Pero- 

 nospora Schleideni. Sow onions in autimm; 

 avoid damp sites ; spray with Bordeaux mixture 

 (7); destroy all dead foUage by fire (resting spores 

 are found in diseased leaves). 



Bulb. — ^Minute black hard bodies about the 

 neck of the bulb, the tissues of which are 

 softened and decay gradually spreads, due to 

 Mucor svbtilissimus. Avoid using nitrate of 

 soda or other manure tending to sappy growth ; 

 dry off bulbs before storing. 

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