-second planting (April-June). SoIaniDH tornini was also piesent in 

 abundance at this time, but was free of disease. 



Leaf Spot (Septoria lycopersici) Speg. — This fungus caused very 

 definite spots in contrast to the effuse irregular areas of the Clado- 

 sporimn. The spots were more or less circular, appeared the same 

 on both sides of the leaf and were quite small, hardly ever more than 

 one-eighth inch in diameter with a definite dark brown margin. They 

 were l)i'Own to nearly black with the minute black fruiting i)odies 

 (pycnidia) at the center. When the spots became numerous, as was 

 the case with all the varieties of the first planting, the leaves turned 

 yellow, curled, and dropped. Lower leaves succumbed first. In 

 eombination with leaf-mold this disease was the cause of much damage 

 through d<^foliation and consequent reduction of yield. Some few 

 fiiiit only were found bearing the characteristic spots. It was es- 

 pecially a disease of young plants in flats or pots, tending to produce 

 weak spindling plants, which if not entirely ruined by this cause 

 remained weak or fell easy prey to other destructive agencies. As 

 noted in the leaf-mold discussion, spraying and other measures were 

 of no avail. 



Li the second planting Septoria appeared only after the plants 

 were well advanced in contrast to its attack of the plants of the 

 eai'lier crop in the seedling stage. It did not prove serious. Lower 

 leaves were killed, and together with the Phoma spot some dying of 

 the upper leaves occurred, but in no way to be considered serious. 

 Spraying was again without effect. 



Blx)Ssom-End Rot. — Considerable trouble was experienced with a 

 blossom or point-end rot, which was apparently due to cultural con- 

 ditions rather than to any parasitic organism. A Fttsarium sp. quite* 

 commonly occurred in the rotted areas, but it is not likely that it 

 was other than saproyhytic since it was generally present in advanced 

 rases only and sometimes not at all. It formed pink and white masses 

 of mycelium and conidia over rotted areas. 



The rotted areas were medium brown in color, nearly circular, at 

 first limited to a small area around the blossom end. but soon en- 

 larging until one to two inches in diameter, at about which time 

 the fruit dropped. The spots w^ere only slightly sunken if at all and 

 but little softer than normal tissues until secondary decay set in due 

 to bacteria or saprophytic fungi. All varieties of the first planting 

 were subject, the loss running around ten per cent. The trouble 

 Avas not experienced in the second planting, possibly due to more 

 satisfactory moisture or cultural conditions. 



Soft Brown Rot. — In the second crop there was some loss from 



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