417 
1170. Brunk, T. L. [Spraying experiments and apparatus.] <[Fourth Ann. Kept. Md. 
Agr. Exp. Sta. for 1891 [College Park], 1892, pp. 381-399, ligs. 7. 
Describes experiments with apples to prevent depredations by insects and fungi. Gives 
account of various fungicides, such as ammoniacal copper carbonate solution, carbonate of 
copper and carbonate of ammonia, kerosene emulsion and copper carbonate (each used in 
combination with Paris green;, and improved ammoniacal copper carbonate. Believes kero¬ 
sene emulsion, copper carbonate, and Paris green mixture to be effective in combating both 
insects and tungi attacking apple and pear. Gives successful results of spraying water¬ 
melon, cucumber, muskmelon, pumpkin, and squash vines with Bordeaux mixture to con¬ 
trol Gloeosporium lindemuthianum. Tomatoes attacked by Cladosporium fulvum were 
sprayed with Bordeaux mixture and carbonate of copper mixture, but with little success. 
Strawberry leaf-blight was successfully treated with ammoniacal copper carbonate solution 
and Bordeaux mixture. Blackberry rust also treated, but without apparent success. The 
use ot fungicides combined with grubbing out infected plants will eradicate this disease in 
time. Quince leaf-blight was treated successfully with Bordeaux mixture two times in 
early spring, and copper carbonate and carbonate of ammonia mixture two or three times 
in the latter part of the season. Descriptions, with illustrations, are given of various forms 
of spraying apparatus. (J. F. J.) 
1171. Butz, Geo. C. Information on spraying fruits. <Ta. State College Agr. Exp. 
Sta. Bull. No. 19, State College, Apr, 1892, pp. 13, tigs. 6. 
Describes results of spraying to destroy both insect and fungous pests, giving formula) 
for Bordeaux mixture and ammoniacal carbonate ot copper, together with description and 
figures of various forms of pumps. (J. F. J.) 
1172. Chester, F. D. A few common diseases of crops and their treatment. <Tlel. Agr. 
Exp. Sta. Bull. No. 15, Newark, Jan., 1892, pp. 16. 
Discusses the present status of treatment of vine diseases by means of Bordeaux mix¬ 
ture, copper carbonate in suspension, copper soda hyposulphite, Johnson’s mixture (copper 
sulphate and ammonium carbonate), and copper and ammonium carbonate mixture. Both 
copper soda hyposulphite and Johnson’s mixture injured the foliage, while the copper and 
ammonium carbonate mixture it is believed promises good results. In discussion of pear 
leaf-blight considers that Bordeaux mixture and Paris green will give good results. In 
treatment of peach rot records good results from use of copper and ammonium carbonate 
mixture. Several diseases of potato are discussed, viz, that caused by Fhytophtliorainfes- 
tans (which can be controlled by Bordeaux mixture), a bacterial disease, and one caused by 
Macrosporium solani. This last is also kept in check by Bordeaux mixture. Directions 
are given for the preparation of the various fungicides mentioned in the bulletin. (J. F. J.) 
1173. C hester, F. D. Spraying with sulphide of potassium for the scab of the pear. <[De]. 
Agr. Exp. Sta. Bull. No. 7, Newark, Mar., 1890, pp. 11-14. 
Gives details of experiments for treatment of Fusicladium pyrinum. The solution of 
potassium sulphide had a strength of J ounce to a gallon of water, and the sprayed trees 
produced about 25 per cent more marketable fruit than the unsprayed. (J. F. J.) 
1174. Chuard, E. Adherence aux feuilles des plantes de composes cuivriques destines 
combattre leurs maladies. <^Ckron. Agr. du Canton de Yaud, vol. v, 
Lausanne, Mar. 10, 1892, pp. 99-101. 
Refers to results obtained by Girard and notes difference in those from his own experi¬ 
ments. In order of adhesiveness Girard found Perret, mixture to stand iirst, Masson mix¬ 
ture second, and ordinary Bordeaux mixture last. Chuard found eau celeste to be first, 
Masson mixture second, and Bordeaux mixture third. Believes different results arise from 
different formulae used in the two cases. Experiments were made with plants attacked 
by Peronospora. (J. F. J.) 
1175. Cobb, N. A. Dialogue concerning the manner in which a poisonous spray does its 
work in preventing or checking blight. <^Agr. Gaz. N. S. Wales, vol. ii, 
Sydney, Dec., 1891, pp. 779-786, figs. 6. 
Describes, in the form of a dialogue, blight of the rose, with its mode of growth, and 
method of treating it by spraying with fungicides. Deals especially with the latter sub¬ 
ject, stating that three sprayings of three seconds each, with intervals between long enough 
to become dry, were more effectual in spreading the fungicide than one spraying of nine 
consecutive seconds. (J. F. J.) 
1170. C[ooke], J. H. The Malta potato disease. <AIedit. Nat., vol. ii, Malta, June, 
1892, pp. 194-195. 
Notes the destruction of potatoes caused by Pliytophthora infestans, and states that sul¬ 
phate of iron, 1 ounce to 4 gallons of water, proved an effective remedy, (J. F. J.) 
1177. Craig, .John. Annual report of the horticulturist.—Fungicides. <^Exp. Farms 
Ann. Reitt. for 1891, Ottawa, 1892, pp. 144-148. 
Gives results of experiments with fungicides for the prevention of apple scab, a modified 
eau-eeleste solution giving the best results; for grape mildew and gooseberry mildew, 
potassium sulphide, 1 ounce in 3 gallons of water, gave the best results. Directions for 
making copper carbonate solutions are given. (J. F. J.) 
