Junk, 1920] PATHOLOGY 'Ml 



PATHOLOGY 



Donald Rbddick, Editor 



2521. Adams, Samuel. A national law to license and regulate. Kept, [owa State Bortio, 

 Soc. 53:5S-65. 1918.— A discussion of the inspection of fruit and the necessity of enacting 

 a national law on the subject. — L. //. Panimcl. 



2522. AFRICA, Emilio Macasaet. The minimum application for the control of Hemileia. 

 Philippine Agric. For. 6:251-271. 1918. — A brief review of previous literature on spraying 

 of coffee trees is given. Spraying experiments were conducted to determine the strength of 

 Bordeaux mixture that can be used most economically, and the number of applications that 

 should be made, for the control of coffee leaf rust, Hemileia vaslatrix, both efficiency and cost 

 of treatment being considered. The author concludes that a 3 : 3 : 50 Bordeaux mixture (which 

 he designates the "stick solution'') diluted to three-quarters strength is a profitable concen- 

 tration and that it should be applied about every 2 weeks. — Erred Wallace. 



2523. Allen, W. J. Control of peach leaf curl at Yanco Experiment Farm. Agric. Gaz. 

 New South Wales 29: 490. 1918. — Hcme-boiled lime-sulfur solution applied while trees were 

 perfectly dormant gave better results than applications made at 2 later dates. This dor- 

 mant treatment appears also to have controlled "rust." — D. Reddick. 



2524. Allen, W. J., and W. le Gay Brereton. Powdery mildew of the apple. Agric. 

 Gaz. New South Wales 29:408-412. 1918. — Based on experiments the following directions 

 are given for the control of apple mildew: Prune off affected wood; spray four times with iron 

 sulphide. Spray mixture is prepared according to Volck-Ballard formula. Bordeaux mix- 

 ture and lime-sulfur solution have not given satisfactory results. — D. Reddick. 



2525. Anderson, S. F. Downy mildew of the vine. A warning. Jour. Agric. [New 

 Zealand] 16:367-368. 1918. 



2526. Anonymous. Disease on cacao estates in West Africa. Tropical Life 15:38. 

 1919. — A correspondent on the west coast of Africa reported his cacao trees dying and the 

 trouble was identified by Dr. Guy Marshall of the British Museum as "die-back" fungus, 

 Diplodia. Rules for the control of the disease are quoted from a book on cocoa by Dr. Van 

 Hall.—//. N. Vinall. 



2527. Anonymous. Coffee planting for profit. No. 23. Tropical Life 15:4-5. 1919. — 

 Compilated material reporting the appearance of coffee leaf disease {Hemileia vastatrix) at 

 the Government farm, Kibos, British East Africa and its control by spraying with quarter 

 strength fungicides such as liver of sulphur and Bordeaux mixture. The occurrence of a 

 species of thrips on the coffee plants in the Nairobi and Kyamba districts is also noted. — 

 H. N. Vinall. 



2528. Anonymous [B. O. Dodge]. Index to American mycological literature. Mycologia 

 11:227-230. 1919. 



2529. Anonymous. Seed mixtures for land affected by clover sickness. Jour. Bd. Agric. 

 [Great Britain.] 25:1497-1499. 1919. 



2530. Anonymous. Silver leaf in fruit trees. Jour. Bd. Agric. [Great Britain] 26: 162- 

 168. S fig. 1919. 



2531. Anonymous. Spraying. Missouri Bot. Gard. Bull. 7:19-25. PI. 5. 1919. — 

 Lists of the more common fungous and insect pests with suggestions for control. — O. T. 

 Wilson . 



