r,. 



452 



transmission of the disease. This supposition was supported by 

 previous records of the habits of T. insidiosus in feeding on the eggs of 

 Chloridea obsoleta (corn- ear worm). T. insidiosus hibernates during 

 the winter among leaves, etc., on the ground, and during this time 

 becomes infected with the disease. While searching for the eggs of 

 C. obsoleta in the silks, the fungus is introduced into the oviposition 

 punctures of the latter insect. Thence the fungus is assumed to spread 

 through the silk to the apex of the seed. Should this supposition be 

 correct, the injurious effects of T. insidiosus will be greatly accentuated. 

 Remedial measures against Diplodia and Fusarium should be carried 

 out very thoroughly. Maize should not be planted in fields which 

 have borne a diseased crop, and it is recommended that leaves and 

 stubble in infected fields should be burned over. Ploughing should be 

 carried out as close to the surrounding fences as possible in order to 

 destroy potential hibernating places. 



Parker (R. R.). Sarcophagidae of New England : Genus Sarcophaga- 

 — Jl. Econ. Entom., Concord, ix, no. 4, August 1916, pp. 438-441, 

 1 fig. 



A description is given of SarcapJiaga aldrichi, sp. n., reared from 

 pupae of Lymantria {Porthetria) dispar, L., and larvae of Mahcosmna 

 disstria, Hb., in Massachusetts and Ontario respectively. 



Weiss (H. B.). The Insect Fauna of New Jersey Greenhouses exclusive 

 of the Coccidae. — JJ. New York Entom., Soc, Lancaster, Pa., 

 xxiv, no. 2, June 1916, pp. 144-150. [Received 1st September 

 1916.] 



This list contains the names of 49 species of insects present in green- 

 houses, of which 23 are unable to live in the open and are probably of 

 tropical or sub-tropical origin. The author recommends that more 

 attention be paid to greenhouse insects, in the control of which tem- 

 perature and moisture are important factors. 



ScHOLL (E. E.). Garden Insects and their Control. — Texas Dept. Agric, 

 Austin, Bull. no. 48, March-April 1916, pp. 154-171. [Received 

 2nd September 1916.] 



Garden insects can be controlled by crop rotation, deep autumn and 

 winter ploughing, the use of trap crops and by spraying. Chewing 

 or biting forms can be destroyed by dusting or spraying with arsenicals, 

 and sucking forms by fumigation with carbon bisulphide or hydro- 

 cyanic acid or by a contact spray, such as kerosene emulsion, carbohc 

 acid solutions, lime-sulphur washes, etc. Arsenicals may be applied 

 (1) in the form of powder, either alone or mixed with lime, flour or road 

 dust ; (2) suspended in water ; (3) mixed with a palatable substance 

 in the form of a bait. Liquid arsenical sprays for delicate plants may 

 be prepared from 1 lb. Paris green, 3 to 5 lb. stone lime and 

 100 to 200 U.S. gals, water. London purple may be substituted for 

 Paris green, in which case the quantity of stone lime is slightly increased. 

 Lead arsenate may be used at the rate of 2 lb. in 50 gals, water for 



