772 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



and flourishes best in an east or north aspect. In those localities where 

 it can exist in the open through the winter it is perennial, but ought to 

 be renewed every three years, as, when getting old, it loses the lower leaves. 

 The plant is a native of Mexico, and is named after the Spanish Jesuit 

 Cobo.— W. G. W. 



Cocoanut Palms in Cuba, Report of an Investigation of 

 Diseased. By August Busck (U.S.A. Dep. Agr. Div. Ent., Bull. No. 

 38, N.S. 1902, pp. 20-23).— The Cocoanut industry in the province of 

 Santiago is threatened by a parasitic fungus which has been identified 

 as Pestalozzia palmarum, Cooke. The first outward indication that a 

 Palm is attacked is the falling of the young fruit ; subsequently the 

 larger nuts drop and the leaves assume a pale yellowish colour. " Within 

 a month all the large lower leaves droop and fall, leaving the pale sickly 

 tops, which at the first heavy wind blow over and then only the naked 

 trunks stand as ghastly tombstones where a few months before stood 

 graceful valuable Palms. Palms of all ages are subject to this disease, 

 though it seems more prevalent among the older plants." Cutting down 

 and burning the diseased Palms is suggested as the best way of com- 

 bating it. — E. N. 



Codlin Moth, The (Carpocapsa pomonella). By C. B. Simpson 

 (U.S.A. Dep. Agr. Div. Ent., Bull. No. 41). — The author states that this 

 insect " is the most serious drawback with which the Apple-grower has to 

 contend, as from one quarter to one half of the Apple crop is injured 

 every year. The control of this insect, however, is not difficult, when 

 compared with that of many insects, and hosts of Apple-growers are each 

 year saving practically all of their crop from its ravages." Details are 

 given of the injuries caused by this insect in different States, from which 

 it appears that in Nova Scotia, Northern Maine, and Western Oregon, 

 owing to the severity of the climate, this insect is doing but little injury ; 

 but in the great Apple regions of the Central States the injury is estimated 

 at from 30 to 100 per cent. Not only are Apples infested by this pest, 

 but Pears, Peaches, Prunes, Plums, Cherries, Quinces, and Apricots. "But 

 under ordinary conditions their injury amounts to practically nothing. In 

 cases where there is a lack of Apples, and the infestation is very abundant, 

 considerable damage results. There are records of 40 per cent, injury to 

 Peaches where the trees were quite near an Apple house in which infested 

 fruit was stored." A fact is mentioned concerning this insect 

 which, as far as I know, has not been recorded in this country— that 

 is, that the larva? at times feed on the leaves. The life-history of this 

 insect is very thoroughly worked out, and much time has been given to 

 ascertaining how many generations there are of this insect in the course 

 of the year, and the conclusion come to is that there are only two, and 

 " that it remains to be proven that even a partial third generation is 

 present in any part of the United States." " Though the codlin moth 

 has many natural enemies, the number, as compared with those of other 

 Lepidopterous larv?e, is comparatively small. . . . Birds are by far the most 

 efficient of the natural enemies of this insect." " The insect enemies of 

 the codlin moth are either predaceous or parasitic, and are quite numerous 



