72 



Snapp (O. I.). U.S. Bur. Ent. Blister Beetle Injury to Peaches. — 



//. Econ. Ent., Geneva, N. Y., xiv, no. 4, August 1921, p. 358. 



[Received 5th December 1921.] 

 Great damage was caused to peach trees by Pompliopoea aenea. 

 Say, in Georgia in March. The beetles attacked the blossoms, eating 

 through the calyx and devouring the pistil. The foliage was also 

 eaten in many cases. The outbreak was checked within twelve hours 

 by the application of lead arsenate and jarring the trees in the early 

 morning. 



Hamilton (C. C). Notes on the Life History and the Control Methods 

 of the Box Wood Leaf Midge [Monarthropalpiis hitxi, Labou.) — 



Jl. Econ. Ent., Geneva, N.Y., xiv, no. 4, August 1921, pp. 359-365, 

 1 plate. [Received 5th December 1921.] 

 Since the introduction of Monarthropalpiis hnxi. Lab., probably 

 from France or Holland, it has been reported from a number of States 

 along the Atlantic coast and from Cahfornia. In Maryland hiberna- 

 tion occurs as a partly grown larva, pupation beginning about May. 

 The first adults emerged on 19th May, and the first eggs were laid on 

 20th May. The eggs hatch in from 12 to 18 days. The best method 

 of controlUng this midge is to entangle the adults as they emerge 

 and before the eggs are laid. This may be effected by spraying 

 with 1 pt. molasses to 3 pts. water three times during the period of 

 emergence, and even more often if it rains. Of the various contact 

 sprays tried under laboratory conditions, one containing 1 pt. syrup, 

 5 pts. water and Black-leaf 40 1-100 gave the best results. Black- 

 leaf 40 and Black-leaf resinate diluted 1 : 500 also proved effective. 

 The addition of soap at the rate of 4 lb. to 50 U.S. gals, increased 

 the wetting properties of the spray. It is probable that under field 

 conditions these sprays may prove effective if applied at intervals 

 of four or five days during the period of emergence. Laboratory 

 experiments with hydrocyanic acid gas and carbon bisulphide gave 

 approximately the same results as obtained by Felt [R.A.E., A, 

 iii, 350]. Fumigation in the field is not advisable. 



Snyder (T. E.). U.S. Bur. Ent. Injury to Structural Timber by 

 Lepidopterous Larvae.— J/. Econ. Ent., Geneva, N. Y., xiv, no. 4, 

 August 1921, pp. 366-369. [Received 5th December 1921.] 

 Pyrausta ainsliei, Heinr., is recorded as boring in the cypress 

 pillars of a house. The Notodontid, Cerura mnltiscripta, Riley, was 

 found in a yellow pine stake that had been treated with creosote. 

 A species of Olethreutid is reported as injuring railway cars, and 

 Galleria mellonella, L., as making grooves in a beehive of white pine 

 wood. The damage to timber by these phytophagous but non- 

 wood-boring Lepidopterous larvae is probably accidental. They do 

 not feed on the woody tissue, but enter it for hibernation. Chemical 

 treatment of the wood does not protect it from these attacks. 



Burke (H. E.). U.S. Bur. Ent. Notes on the Carpenter Worm 

 [Prionoxysttis roUniae, Peck) and a New Method of Control. — 



//. Econ. Ent., Geneva, N. Y., xiv, no. 4, August 1921, pp. 369-372. 



[Received 5th December 1921.] 



Prionoxysttis robiniae. Peck, is one of the worst pests of the native 



live oak {Quercits agrifolia) and introduced elms, such as Ulnms 



campestris and its varieties in California. Other food-plants of this 



