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Eggplant Diseases 143 



except the roots. On the seedlings it cau-ses a damp- 

 ing off. Young plants are attacked at the stem end 

 or an inch or two above the ground line as indicated 

 by a constricted area at that place. On the leaves 

 the trouble is manifested as large brown round spots 

 which later become irregular and ragged (fig. 23, 

 a.). The older spots are light purple in the center 

 and are surrounded by a black margin. As they en- 

 large the spots also invade the veins, midribs, and 

 petioles, forming depressions. Diseased fruits are 

 at first soft and mushy, but later become dry, shriv- 

 eled, and mummified (fig. 24, a.). 



The Organism, Pycnidia are usually found on 

 all parts of the attacked plant. Within the body 

 of the pycnidia and intermixed with the conidio- 

 phores (fig. 23, c.) and pycniospores (fig. 23, b.) are 

 found filiform hooked-shaped bodies termed stylo- 

 spores (fig. 23, d.). Phomosis vexans has been erro- 

 neously referred to as Phoma solani Hals; Phoma 

 vexans Sacc. and Syd., and Aschochyta hortorum 

 Speg. 



Control. The seedlings in the seed bed should be 

 sprayed with Bordeaux at least once before trans- 

 planting. The plant in the house should be sprayed 

 from four to eight times with either Bordeaux mix- 

 ture or ammoniacal copper carbonate. 



Anthracnose 



Caused by Gloesporium melengone^ E. and H. 

 Anthracnose on the eggplant attacks only the 



