Symptoms 



Melon. 



8tem. — Canker, see Cucumber. 

 Foliage. — Leaf - spot due to Gercospora 

 Melonis and a bacterial disease (which also 

 affects the fruit). See Cucumber. 



Mignonette. 



Foliage. — Dusky brown indeterminate 

 patches on leaves, under lens appearing velvety. 

 Due to Gercospora Besedae. Most common in 

 damp soil lacking Mme. Spray with Bordeaux 

 mixture or liver of sulphur (7). 



Mint. 



Foliage. — Leaves become yellowish and sickly- 

 looking, and bear on lower side (and often on 

 rhizomes, too), cup-shaped receptacles contain- 

 ing spores in spring, followed in summer by 

 smaU patches of chestnut-brown spores. Rust 

 due to Puccinia Menthae. Perennial in tissues, 

 therefore destroy affected plant completely. 

 Spray remainder with potassium perman- 

 ganate. 



MtrU/EiN. See Verbascum. 



MtrSTAED. 



Stem. — Damping off. See Cress. 

 Naecissus. 



Foliage. — Dies prematurely near tip. Leaf 

 spot due to Eamularia Vallisumbrae. Destroy 

 diseased tissue. If occurring in second season 

 spray with Bordeaux mixture (7). 

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