652 EXPERIMENT STATION RECORD. 



Insect notes for 1906, Edith M. Patch (Maine Sta. Bill. 13.',, pp. 209-228, 

 />/.s. -'/). — The author jirest'iits nott's on the present status of l)rown-tail motb. 

 gypsy moth, potato insects, alder blight, larch case-bearer, apple maggot, codling 

 moth, diamond-back moth. etc. The diamond-back moth is reported as having 

 l)een unusually injurious in greenhouses. 



Notes on some Fijian insects, F. Mum {Hawaiian .S'Hf/«r Planters' Sta., Div. 

 Ent. Bui. 2, pp. 11, ph 1). — It was found that in Fiji the common species of 

 sugar cane leaf hopper is held in check by various parasites. About 85 per cent 

 of the eggs are parasitized and the young and adult leaf hoppers are attacked 

 by Elenchus teniiiconiis. This species was introduced in Hawaii but did not 

 attack the leaf hoppers there. The insect is described and notes are given on its 

 liabits. PipiniciiliiK ritieiisi)'! is also described as a new species. 



Some injurious insects, Emma M. Sock and F. A. Bartlett {Hampton Leaf- 

 lets, n. ser., 2 {HJ06), ^'o. 12, pp. 31. ft<js. 30). — Brief descriptions are furnislied 

 of a number of the more important injurious insects and practical remedies for 

 controlling these pests are suggested. 



Horticultural insect enemies, D. L. Van Dine {Hau-aii. Forester and Ayr., 3 

 {1906), 'No. 11, pp. 31,1-350). — Brief notes are given on the anatomy of insects, 

 the usual methods of controlling them by insecticides, orchard sanitation, natural 

 enemies, and quarantine. A list is presented of the more injurious horticultural 

 insects in Hawaii. 



Some of the Coccinellidae, G. W. Dim mock (In forme An. Estac. Cent. Agron. 

 Ciiba, 1, (1901,-5), pp. 287-392). — An elaborate discussion is given of the 

 anatomy, metamorphosis, and life history of the CoccinellidiP known to occur 

 in Cuba. Detailed descriptions are given of species, with notes on their habits 

 and with an analytical table to assist in identifying the species. A bibliography 

 relating to the sul)ject is appended to the article. 



Notes on certain cranberry-bog insects, H. J. Franklin (Ent. News, 18 

 (1907), No. 1, pp. 17-20). — A study was made of the insects on cranberry bogs 

 in the region of Cape Cod in the season of 1&06. Brief descriptive and economic 

 notes are given of Cymatophora sulphvrea. Glcea sericea, etc. 



The important forest insects, G. Gronberg {Slcoysvardsfor. Folkskr., No. 7. 

 pp. 32. fills. 37). — The author presents a general account of the habits, life 

 history, and means of combating various species of Melolontha, Hyloltius. 

 Pissodes, Scolytus, Tomicus, Bombyx, Psilura, etc. Considerable attention is 

 given to methods of fighting the nun moth in large forests. 



The Hessian fly, H. A. Gossard and J. S. Houser (Ohio Sta. Bui. 177. pp. 39. 

 pi. 1, figs. 3). — For several years the station has made observations on the 

 habits of the Hessian tiy and practical means of combating this pest. The 

 insect is described in its various stages and notes are given on its life history 

 and food plants. 



Observations extending over a period of 3 years give little support to the idea 

 of immune varieties of wheat. The strength of the straw, however, is an 

 important factor. Stiff vigorous straw will stand up under infestation with 

 one and sometimes more of the insects. It appears tliat wheat well fertilized, 

 particularly with phosphatic manures, will produce a heavy strong straw 

 which will resist the attacks of the Hessian fly nuich better than wheat which 

 has been excessively fertilized with nitrogen. 



In combating the Hessian fly with direct remedies, the best results ar(> 

 obtained from burning the stubble. This should be done before the flies have 

 emerged from the stubble or before the first of September. In the southern 

 parts of the State the stubble should be burned by the middle of August. 

 Where burning is not practicable good results will fallow fall plowing in which 

 the stubble is turned under to a depth of several inches. 



