ECONOMIC ZOOLOGY — ENTOMOLOGY. 879 



muteli). in addition to occurring on oxalis, this Bame plant occurs as a para- 

 site in Algeria-upon the tomato, often causing considerable loss. 



Investigations on the comparative adherence of fungicides, E. Chi \ki> 

 and F. Pobchet (Compt. Bend. Acad, 8ci. [Paris], 140 (1905), No. 10, pp. 

 1S54-1356) . — On account of the ease with which it is prepared, ii is said thai 

 in many regions ;i l per cenl solution of neutral acetate of copper is extensively 

 substituted for tlic ordinary fungicides, Buch as Bordeaux mixture, etc. The 

 acetate of copper is easily soluble in water, does not appear unsightly on the 

 foliage, and its efficiency is believed to i><' equal to fungicides containing lime 



Or soda. 



in order to test the subject the authors made a study of the relative adhe- 

 sive properties of this mixture, comparing it with Bordeaux mixture and 

 Burgundy mixture. Bight applications were made to vines under identical 

 conditions and on the same dates, and the amount of copper adhering to the 

 foliage was determined. The relative amounts of copper adhering t«i the 

 foliage are shown. When the strength of the different solutions is compared, 

 the amount of copper adhering to the leaves sprayed with the neutral copper 

 acetate solution was the greatest. 



A study of sulphur fungicides, J. B. Martin {Prog. Agr. et 1/7. (Ed. I'Est), 

 26 (1905), No. 25, pp. 736 742). —On account of the desirability of a combined 

 fungicide for use against both the downy and powdery mildew of the grape, 

 many investigators have recommended the addition of sulphur in some of its 

 tonus to Bordeaux mixture and thus treat for both diseases ;it one spraying. 

 The author cautions against this practice, and cites a number of investigations 

 which seem to throw doubt on the efficiency of such treatments. In general he 

 claims that separate treatments will give the best results against both diseases. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Report of the entomologist, II. Teyon (Queensland Dept. Agr. Rpt. 1904—5. 

 ]>}). 125-184)' — ^ s usual, in the author's reports, notes are given on a large 

 Dumber of insect and fungus pests which have attracted attention during the 

 year. Among the more important species mention may be made of Tephritis 

 tryoni, bollworm, sweet-potato weevil, cattle tick, and horse botfly. Brief 

 notes are also given on apiculture, insectivorous birds, and fungus diseases. 



Insects injurious to corn, A. R. Koiii.ik (Iowa \<ir., 6 (1905), Vo. ■'>. pp. 

 S2-S6). — The numerous insects which attack this crop are grouped according 

 as they affect the seed after planting, the roots, and the stalk and leaves. In 

 this discussion particular attention is given to seed-corn maggot, wireworms. 

 northern corn-root worm, corn-root louse, hill bugs, Chinch hug. army worm, and 

 bollworm. 



Report on miscellaneous cotton insects in Texas, B. I). Sanderson (U. 8. 

 Dept. Agr., Bur. Ent. Bid. 57, m>- S3, pi. /, figs. S3). — The present account of 

 the less important insects which attack cotton in Texas is supplementary to 

 investigations conducted hy the Bureau of Entomology on the cotton-holl weevil 

 and bollworm. 



Tlie prevalence of these species is briefly descrihed. and the various insects 

 discussed are arranged largely according to the nature of their attack or the 

 part of the plant affected. Thus the classification includes leaf-eating cater- 

 pillars, insects affecting the stalks, and insects affecting the fruit Notes are 

 given on the habits, life history, and means of combating a large Dumber of 

 species, including cutworms. May hectics, locusts, beet army worms, stalk 

 horers. snowy tree cricket, plant bugs, and sharpshooters. 



27588— Xo. 9—06 5 



