Fungoid Diseases 



FUNGOID DISEASES OF VEGETABLES (Cont.) 



Common and Scientific 

 Name of Disease. 



Parts Attacked and Outward 

 Appearance. 



Beet Heart Rot (Phyl- 

 (osticta tabiftca or 

 Sporideamium putre- 

 faciens). 



Cabbage Crop Black 

 Rot (Pseudomonas 

 campestris). 



Cabbage White Rust 

 (Cystopus candidus). 



Celery Blight (Cerco- 

 spora, Apii). 



Club Root (Plasmodio- 

 phora brassicce) ; also 

 known as ' ' Anbury " 

 and "Finger and 

 Toe ". 



Cucumber Fruit Spot 

 (Cladosporium cu- 

 cumerinum}. 



Cucumber Leaf Blotch 

 ( Cercospora Melonis). 



Hop Mildew (SpJice.ro- 

 theca Castagnei). 



Mushroom Disease 

 (Hypomyces perni- 

 ciosus). 



Onion Mildew (Per- 

 onospora Schleideni). 



Onion Smut ( Urocystis 

 Cepulcn). 



VOL. I. 



The outer leaves wither, followed 

 by whitish spots with withered 

 tissue filled up with the my- 

 celium, which spreads inwards 

 and attacks the roots. 



Bacteria attack lower leaves of 

 Cabbages, Cauliflowers, Brussels 

 Sprouts, Turnips, &c., and pass 

 into the stems, which become a 

 putrid evil-smelling mass. The 

 veins of diseased plants show up 

 as a black network. 



Attacks the leaves, stems, and 

 flowers of all Cabbage crops, and 

 deforms them, covering them 

 with a dense white flour -like 

 mildew. 



Causes yellowish spots on leaves, 

 turning to brown. The my- 

 celium grows between the cells 

 in leaves, and sends tufts of 

 conidiophores through stomata. 

 Parsnips are affected by same 

 diseases. 



Attacks the roots of all Cabbage 

 crops, including Turnips, Rad- 

 ishes, Swedes, and Kohl-Rabi, 

 and causes deformed and putrid 

 masses. 



Brown rotten depressions caused 

 on fruits of Cucumbers and 

 Melons. 



Appears as small green spots on 

 leaves, gradually increasing in 

 size, and becoming brownish or 

 yellow, leaves often becoming 

 dry and shrivelled in twenty - 

 four hours. 



Attacks all parts of plant, includ- 

 ing young inflorescences, and 

 thus destroys crop. 



Attacks growing Mushrooms, 

 which become an irregular mass, 

 ultimately decaying into a pu- 

 trid mass with a disagreeable 

 pungent smell. 



Cover.s tops of onions with a 

 greyish mouldy velvety coat, 

 and causes leaves to flag. 



Attacks green leaves and subter- 

 ranean scales, forming brown 

 pustules and streaks. 



Treatment, Ac. 



Diseased plants should be taken 

 up and burned. Mangels and 

 Swedes are also attacked, the 

 disease appearing from the 

 middle of August onwards. 



Diseased plants should be taken 

 up and burned, and the soil may 

 be dressed with powdered sul- 

 phur. 



Diseased plants should be taken 

 up and Iburned, and all Cruci- 

 ferous weeds, like Shepherd's 

 Purse, &c. , should be suppressed 

 by good cultivation. 



Spray early in season with fungi- 

 cides. The Celery Leaf Blight 

 caused by Septoria Petroselmi, 

 var. Apii, attacks leaves and 

 stems, and may be known by 

 small black spots. 



The best remedy is fresh gas lime 

 or quicklime dug in when ground 

 is fallow ; or slaked lime or basic 

 slag when crops are on soil, or 

 about to be planted. 



Causes the same as leaf blotch ; 

 remedies the same, all diseased 

 fruits being burned. 



Chiefly caused by too high a tem- 

 perature, lack of fresh air, and 

 too much water. Remedy these 

 conditions and burn all diseased 

 leaves. Melons and Marrows 

 afflicted with same disease under 

 similar conditions. 



Spray early in season with hot 

 Bordeaux mixture or liver of 

 sulphur, and dust freshly turned 

 soil freely with sulphur. 



Diseased plants should be removed 

 and burned when seen, and better 

 ventilation should be given to 

 Mushroom houses, as foul air is 

 one of the chief causes of attack. 

 Before spawning for a fresli crop, 

 clean out old soil, and burn 

 brimstone or sulphur with closed 

 doors. 



Young plants chiefly injured when 

 grown in badly drained soil, or 

 in low damp situations. Alter 

 these, and spray with fungicides. 



Spray with liver of sulphur, or dust 

 soil and plants with powdered 

 sulphur earl}'. Transplanting to 

 fresh ground is beneficial. Badly 

 diseased plants are best burned. 



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