480 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Clover Root-borer, The (Hylastinus ohscums, Marsham). By 

 F. M. Webster {U.S.A. Dep. Agr., Bur. Enfom., Cir. 119; Mch. 23, 

 1910; 4 figs.). — The -adult insect is a small, dark brown, hard-bodied 

 beetle ; the female deposits her eg^s in the crown of the plant between 

 the middles of May and June. The larvae hatch out in about a week 

 and burrow downwards into the root, and become fully grown and in 

 the pupal state by the beginning of August. They are all fully developed 

 beetles by October, but they do not attempt to leave the plant until 

 spring. 



In Europe they are known to attack Scotch broom and yellow- 

 flowered rest-harrow, as well as red clover and lucerne. 



The only effective preventive measure yet discovered is summer 

 fallowing as soon as the hay crop is removed ; at this time the young 

 are in an immature state, and if depriA^ed of food must perish. — V. G. J. 



Clover-root Curculio, The {Sitones hispidulus, Fab.) By 

 V. L. Wildermuth (U.S.A. Dep. Agr., Bur. Entom., Bull. 85, part iii., 

 March 7, 1910; 5 figs, and bibliography). — The genus Sitones includes 

 a large number of species, many of which are known to be more or 

 less injurious to leguminous crops. Sitones puncticollis Steph. and 

 .S'. lineatus L., frequently called " pea weevils," have been especially 

 destructive at times to peas, beans, and clover in England, as well as 

 on the Continent. Miss Ormerod (1883-4, 1893) stated that the larvae 

 were sometimes known as " white maggots " and that in England they 

 obtained their living from the roots of the plants attacked, while the 

 adults feed on the leaves. — V. G. J. 



Clover, Selection of. By S. M. Bain and S. H. Essary (U.S.A. 

 Exp. Stn. Tennessee, Bull. 75; 1906). — A fungus pest (Colletotrichum 

 trifolii) has done great damage in this State, so much so that in many 

 parts the crop has been almost entirely abandoned. It also attacks 

 lucerne. Although by August- September most of the plants had died, 

 healthy plants were discovered here and there. These plants were 

 selected and their seed preserved. Next year this selected seed was 

 sown in rows alternating with rows of a commercial clover of average 

 character. The plots were all artificially infected by the diseased crop 

 of the previous season. 



About 95 per cent, of the selected plants survived, and only some 

 5 per cent, of those not selected. Alsike clover is immune to this 

 disease.— F. S.-E. 



Codlin Moth in the Ozarks. By E. L. Jeune (U.S.A. Dep. 

 Agr., Bur. Ent., Bull. 80; pt. 1; 1909).— In 1907 experiments as to 

 remedial measures against the codlin moth were conducted by the 

 Bureau of Entomology, and in 1908 experiments relating to its hfe- 

 history were undertaken. The latter show that in this district three 

 generations of the moth are produced yearly, the third brood generally 

 surviving the winter and producing the first spring brood of the following 

 year. — C. H. L. 



