138 TWENTY-FIFTH ANNIVERSARY REPORT. 
the Station grounds in 1884 and 1885; lettuce mildew;* and a 
damping off and leaf rot caused by the fungus Rhizoctonia.” 
LILY. 
Two destructive lily diseases were studied in 1895.% One of 
these was an Easter-lily disease which was causing florists much 
trouble and loss at that time. It is characterized by the spotting 
and distortion of the leaves and flowers which gives the plants a 
sickly, yellowish, rusty appearance, making them unsaleable. The 
cause of the disease being unknown, an unsuccessful attempt was 
made to discover it. Finding the problem a very complicated one, 
involving the treatment of the bulbs in Bermuda, where they are 
grown, the investigation was abandoned. Subsequently, the subject 
was taken up by Dr. Woods, of the United States Department of 
Agriculture, and worked out.*% It was found that the disease is 
due to a combination of causes, one of which is the weakening of 
the plants through the use of immature, unrested bulbs for plant- 
ing and. propagation. This renders them susceptible to the attacks 
of aphides, mites, fungi and bacteria. 
The other lily disease studied is a fungus disease* in which 
elliptical, orange-brown spots appear on the leaves, buds and stem. 
Attempts were made to control the disease by spraying the plants 
with bordeaux. While sprayed plants held their leaves somewhat 
better than unsprayed ones, the difference was not great. Probably 
the treatment was not commenced early enough. 
MAPLE. 
Maple diseases which have been studied and discussed in the 
Station publications are: (1) An anthracnose®® which attacks Nor- 
way maples in the nursery. The leaves and young shoots blacken 
and die, the result being the formation of a bushy top which must 
be pruned away in order to re-establish the “leader.” (2) Scorch- 
ing of maple foliage by dry winds. This was conspicuous on 
Norway maples on Long Island in 1895,% and on both sugar and 
Norway maples the State over in 1&899.%. 
* Brenua lactuce Regel. Rpt. 4:279. 
© Bul. 186:16 (1901) ; same in Rpt. 19:108. 
® Rpt. 14:520-524 (1895). 
*U. S. Dept. Agr. Div. Veg. Phys. and Path. Bul. 14 (1897). 
* Botrytis sp. See Ann. Bot. 2:319 (1888). 
* Gleosporium apocryptum E. & E. Rpt. 14:531 (1805). 
* Rpt. 15:453 (18906). 
* Bul. 162:177 (1899) ; same in Rpt. 18:165. 
TE nea ee a eS a a ee 
