714 Report oF THE HortTIcULTURIST OF THE 
 cladium pyrinum, Fckl., namely, Helminthosporium Péirorum 
Lib., Cladosporium dendriticum (Wallr.), Fekl; usicladiwm 
dendriticum, Fckl. 
19. Franx, A. B. Die Krankheiten der Pflanzen, 1880, p. 589. 
Considers the pear-scab fungus Pusicladium pyrinum (Lib.) Fekl. 
as distinct from the apple scab fungus, / dendriticum (Wallr.) 
Fckl. States that it occurs on the one-year old twigs as well as, 
on both sides of the leaves and on the fruit. Notes that the 
infected leaves fall somewhat sooner than do the healthy leaves. 
20. Gattoway, B. T. Bull. No. 3, U. S. Div. Veg, Pathology, 
1892, pp. 36-47. Reports results of experiments made in 1891. 

Copper saccharate and glue, mixture gave best results for pear _ 
scab alone. Bordeaux mixture gave best results for both pear 
leaf blight and pear scab. 
21. Jour. Mycology, VI, p. 14. States that pear 
scab is especially prevalent in New Jersey, Delaware and adjoin- 
ing states. Recommends treatment with Bordeaux mixture both 
for large trees and for seedlings. 
22. Farmer’s. Bulletin, No. 7, U. 5. Dept. Agr., 1892, 
p. 15. Outlines method of treating both pear scab and pear leaf 
blight by one line of treatment with Bordeaux mixture. 
23. Gatitoway, B. T., and Farroninp, D. G. Rep. U. S. Dept. 
Agr., 1892, pp. 397-398. Report result of testing relative values. 
of Bordeaux mixture, ammoniacal solution of copper carbonate, 
copper acetate, copper carbonate in suspension and mixture No. 
5. The experiments were also conducted with a view of deter- 
mining the best number of treatments, the best time to make the 
applications and the cost of treatment. Conclude that: | 
1. Early treatments (beginning before the fruit is half an inch © 
in diameter) are necessary to prevent the scab. 
2. Spraying after the fruit is half grown is liable to injure its 
appearance. 
8. Best results were obtained with Bordeaux mixture and the 
ammoniacal solution of copper carbonate. 
24. Journal Mycology VI, pp. 187-142. Give 
details of the experiments noted above. See No. 23. . 
25. Green, W. T. Ohio Exp. Station, Bul. 9, VI, 1891, pp. 




212-213. Finds that sprayed fruit keeps better after being picked : ae 
than does unsprayed fruit. Notes the beneficial effect of spray- 

