Report of the State Extomologist 359 



year was often followed by badly affected foliage, owing in many cases 

 to plant diseases and not to tlie arsenite. Paris green growing in 

 popular favor. Importance of continual agitation of the Paris green 

 mixture. Strength in which it may be used upon different trees, 

 [See pages 290-292 of this Report. | 



Apple-Tree Insects. (Country Gentleman, for April 24, 1890, Iv, 

 p. 329, c. 2— 12 cm.) 



Cocoons of the apple-leaf Bucculatrix, Bucculatrix pomifoliella 

 Clemens, containing the pupae, are identified from [Canastota] Madison 

 county, N. Y. ; also the eggs of the apple-tree tent-caterpillar, 

 Clisiocampa Americana, from which the caterpillars are hatching. The 

 remedies for these two orchard pests are given. 



Poisoning Insects. (Country Gentleman, for May 1, 1890, Iv, 

 p. 347 — 10 cm.) 



Directions are given for mixing Paris green and London purple in 

 water for spraying purposes, and strength in which thej^ maj-- be safely 

 used. Importance of thorough mixture hy constant agitation, as shown 

 in experiment made with its rapidity of settling when at rest. 



[See pages 292, 293 of this report.] 



The Fly Chloropisca Prolifica. (Country Gentleman, for May 1, 

 1890, Iv, p. 349, c. 2, 3 — 42 cm.) 



Observations on the habits of the fly at Ausable Forks, N. Y., made by 

 a correspondent [Mrs. H. D. Graves). Effort being made to rear it on 

 grass sod. Notices of its occurrence at Franklin, N. H., and at Alfred 

 Center, N. Y. Its European gatherings and particularly in the Obser- 

 vatory at Warsaw, Russia. The chief points of interest in the insect. 

 A brief description, that it may be recognized, if seen elsewhere. 



The Voracity of the Silkworm. (Albany Times, for May 8, 1890, 

 p. 2, c. 3 — 9 cm.) 



In reply to inquiry made by the Times editor of the truth of a para- 

 graph which is going the rounds of the press, to the effect that the 

 silkworm when first hatched only weighs one-fourth of an ounce, yet 

 during its life of thirty-flve days consumes between 3,000 and 4,000 

 pounds of leaves!— a gross misstatement is shown, in that the silkworm 

 just from the egg weighs but the one-hundredth part of a gram, and its 

 entire food is less than a half-ounce of leaves. 



Spraying for Fruit Tree Insects. (Country Gentleman, for May 

 22, 1890, Iv, p. 407, c. 4 — 22 cm.) 



Inquiry is made for an insecticide that may be used in a vegetable 

 garden against the various fruit tree insects, where it is thought that 

 the arsenites might not be safe. In reply : The arsenites may be used 

 without danger if not in overstrength (1 to 250), and only in a sufficient 



