-Mycelium and spores from the rind of 



74 



^appearances sound and saleable. I have known worthless lemons of 

 this character to pass along in the trade from hand to hand until 

 they at last found their way into, well, we will call it consumption. 

 At any rate the consumer paid the bill. Beware of light-weight 

 lemons that appear to be fresh and juicy in the skin, for they are most 

 likely of this worthless sort, and so will become mouldy, and besides 

 are already past using. Their acidity is tainted with a bitterness that 

 makes them unfit for culinary purposes. 



In calling attention to the lightness of the smitten lemons there is 

 no failure to remember that good lemons sometimes become light in 

 weight. Good lemons becoming light in weight become so by drying 

 up, and are therefore easily distinguished from those that are light 

 from rot, since the latter have a juicy skin. Lemons that are merely 



dry in the skin often contain ex- 

 cellent acid. 



As the disease enters at the stem 

 end we might expect that any 

 fungicide or disinfectant applied at 

 the stem-scar would be effective in 

 preventing the entrance of the 



f UngUS, and this IS actually the Case. 



This operation may be accomplished 



ose shown at 6 ; d, spore germinating. most effectually at the time the 



lemons are being packed for storage 

 or for along journey. The operation should not be delayed long after 

 plucking. 



Care in the harvesting of the lemons will do much to leave the scar 

 unbroken, and this care should always be exercised if the lemons are 

 to be kept for a long time, as when exported or placed in storage. 



The ordinary fungi that attack bruised fruit are much more common 

 at some seasons than at others, and when they are prevalent special 

 care should be exercised in harvesting and handling the fruit. Damp 

 weather, especially if continued through several days of moderate 

 temperature, is very conducive to the growth of these fungi, and it 

 is during such weather that special care should be exercised. The 

 weather that causes old boots, bread, and cheese to mould is the sort 

 of weather in question. 



DISEASES OE THE PASSION- VINE. 



[See Coloured Plate opposite.] 



SINCE writing on a former occasion on the " Woodiness of the 

 . Passion-Fruit " I have kept the diseases of this crop more or less in 

 view, with the result that it is now possible to give a much more 

 complete sketch of the fungus diseases to which it is subject. These 

 turn out to be quite numerous, and they present a considerable 

 variety. Besides the woodiness, which still remains more or less of a 

 mystery, there is a ripe rot of the fruit which appears to be found also 

 on the foliage, a shot-hole or leaf-corroding fungus, a Macrosporium 

 disease, and one or two others. 



