302 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



species to behave in the same way. He therefore divides the genus 

 into two, and suggests some alteration in classification. 



The disease has at present been found only in Ireland, but it is 

 quite possible that it exists in England. It is worse where Potatos 

 are grown on the same land for several years in succession ; with a 

 proper rotation it does not appear to give trouble. Proposals are 

 made for the founding of a new genus to include Phytophthora 

 cactorum and others of a similar type under the name Nozenia, 

 and to establish a new family, the Phytophthoraceae, to include 

 P. infestans, P. phaseoli, and P. erythroseptica. The disease is common 

 in West Ireland and is probably transmitted by resting spores 

 adherent to the skin of the tubers. — F. J. C. 



Propagation, Plant. By W. L. Haward (U.S.A. St. Bd. Hort., 

 Missouri, 4th Ann. Rep. 1910, pp. 177-216 ; 39 figs.). — The raising 

 of young apple trees by piece root grafting is very fully described 

 (pp. 178-184).— -4. P. 



Radish, Japanese (Raphanus sativus var. acanthiformis). By 

 R. de Noter (Rev. Hort. de I'Alg., No. 9, p. 304, Sept. 1912). — A plea 

 for the more general cultivation of the Daikon or Japanese Radish, 

 which is said to be easy of cultivation, to flourish in any good soil, and 

 to give the most wonderful returns. It forms part of the national 

 food of the Japanese, and maybe cooked and enjoyed by Europeans 

 in a number of ways. — M. L. H. 



Raffia, To make more lasting (Rev. Hort. Beige, No. 18, p. 295, 

 Sept. 15, 1912). — The strength and durability of raffia will be very 

 much increased if it is exposed before using to the fumes produced 

 by burning sulphur in a closed receptacle. — M. L. H. 



Results of the artificial Use of the White-fungus Disease in Kansas. 



By T. H. Billings and P. A. Glenn ( U.S. Dep. Agr., Bur. Ent., Bull. 

 107 ; 1912). — Considerable damage is caused yearly to maize crops 

 by the attacks of the Chinch bug, and experiments were carried out by 

 the authors to ascertain whether artificial infections of the soil with the 

 white-fungus (Sporotrichum globuliferum), a known fungus parasite of 

 the Chinch bug, would prove an effective remedy. The results were 

 negative. The fungus occurs in any soil in sufficient quantity to 

 obviate the necessity of artificial infection, but as a rule the necessary 

 conditions, such as efficient moisture, &c, are lacking. Also old spent 

 Chinch bugs are more susceptible than young. Other and more 

 effective methods are described. 



The best results have been obtained by burning all wood, grass, 

 rubbish, &c, where the bugs hibernate, in winter and late spring, and 

 trapping the bugs in holes along a ploughed furrow all round a field of 

 maize, the ridge of which has been smoothed over and coated with 

 crude oil, tar, or some other repellant. The migration of the bugs 



