Bordeaux and lead arsenate api)lied at intervals of a week siiffieed 

 to check the disease to some extent and to stop tlie insert attacks, Init 

 were of no practical value. No salable fruit was ol)tained. 



On the leaves this disease occurred as brown spots, varying con- 

 siderably in size and shape. On seedlings in flats they were small, 

 hardly over one-eighth inch in diameter, more or less circular, and 

 attacked the older, lower leaves. At this stage it appeared to be 

 merely a disease of old over-mature leaves, or of plants held too long 

 in tilt' flats and so weakened. However, the disease appeared on 

 ])lants in the field, causing large irregular, dull-brown spots on the 

 leaves and brown, sometimes sunken, lesions on petioles and young 

 stems. Branches or twigs were often girdled, and in some plants 

 tins was so common that nothing remained alive beyond a short length 

 of tht^ main stem. The fungus produced nearly circular, raised areas 

 on the fruit, hardly different in color at first from the normal skin 

 of the fruit, but soon coalescing to form black areas covering large 

 portions of the surface area. The calyx lobes and pedicels were also 

 often attacked, resulting in irregular, sunken brown cankers. In all 

 diseased areas the fruiting bodies appeared as minute black points, 

 T)iit were especially prominent in the fruit and stem cankers. There 

 was at first a soft rot with same leaking, and the fruit very soon fell 

 to till' ground, leaving the infected pedicel and calyx on the plant. 

 Witliin a short time it became a black, wrinkled mummy. 



Fruit Kdt {Diplodia sp.) — Fruit of the long purple variety was 

 I'otted by a species of Diplodia not at present distinguishable from 

 Diplodia natalensis, the cause of stem-end rot of Citrus. Tnnocula- 

 tions have not yet been carried out. The fungus apparently attacked 

 through the stem end, causing the fruit to drop to the ground, where 

 it was soon mummified by a dry rot. The pedicel and calyx remain- 

 ing on the plant had nnich the same appearance as when attacked 

 by Pliomopsis. There were first brown lesions followed by death and 

 c(tiiii)lete withering and drying. The rot of the fruit progressed very 

 rafiidly to tlie blossom end, appearing, externally medium brown iu 

 color, internally light lirown, with no juice exudate. Only young 

 fruit were observed attacked. The pycnidia produced in a damp 

 chamber resembled those of D. natalensis on Citrus. 



Root Knot {HeU vod< ra radicivola |Greef.] Mill.) — Some few 

 plants were attacked by root knot. Except where Sckrotium Holfsii 

 was also present no perceptible damage resulted, although the plants 

 were undoubtedly weakened by the presence of these parasites. 



A \eciria sp. was found at the base of a plant that had been 

 killed by Sckrotium, so that it can l)e considered only as a sapro- 



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