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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



on the other hand differed very considerably, and it i-s considered' 

 possible that added rigidity of stem might be obtained by a judicious 

 choice of fertilizers. — M. L. H. 



Caterpillar, Yellow-Bear, Biolog-ical and Economic Notes 



on the. By H. 0. Marsh {U.S.A. Depk Agr., Bur. Entom., Bull. 22, 

 pt. v., Aug. 1910; 1 fig.). — The yellow-bear caterpillar (Diacrisia 

 virginica Fab.)- worked great havoc among the sugar-beets grown in 

 the Upper Arkansas Valley of Colorado during the late summer and 

 autumn of 1909. The larves of the first generation developed on weeds 

 along the fences and ditches and did not interfere with cultivated crops, 

 but those of the second generation which began to develop about the 

 middle of August were so numerous that the weeds were not sufficient 

 to support them, and they spread to sugar beets and other crops. 



Arsenical washes were found to be quite useless, and Paris green 

 was not entirely successful. Burning weeds and clearing ditches, 

 with clean cultural methods generally, appeared to be the most effective 

 way of dealing with the pest. — V. G. J. 



Cattleya Rex {Bot. Mag. tab. 8377). Peru. Family Orchi- 

 daceae; tribe, Epidendreae. Epiphyte; leaves, 6-12 inches long; sepals, 

 oblong-lanceolate, 3 inches long, ivory-white; petals, elliptic, margins, 

 wavy, 3 inches long, ivory-white; lip, entire, 2 inches across, oblong, 

 3 inches long; lateral lobes, yellow, rose-coloured, with dark red vein- 

 ing; border rose, with deeper-coloured spots.— G. H. 



Chaenomeles (Cydonia) Maulei var. Sarg-enti. By S. Mottet 

 {Rev. Hort. May 1, 1911 ; p. 204-205 ; col. plate). — The plate represents 

 a very attractive form of Quince, with brilliant scarlet flowers and 

 abundant inflorescences. Other kindred varieties are described with 

 white flowers, various deep reds, and a form with tri-coloured foliage, 

 all highly recommended as early flowering decorative trees. — C. T. D. 



Chinch Bugs, Burning-. By T. J. Headlee {U.S.A. Exp. Sin. 

 Kansas, Dept. Entom., Circ. 16; Nov. 1910; 5 figs., 2 tables). — The 

 chinch bug establishes winter quarters in clump -forming grasses, and 

 unless they are destroyed wheat, corn, and cane will suffer from its 

 depredations. 



Eunning fire over the infested grass-lands so as tp.burn the clumps 

 or bunches down to .the crown will destroy most of the bugs.^T". G. J. 



Chlorotic Fruit Trees and their Treatment with Sulphate of 



Iron. By M. Cofaquiez {Pom. Frang., 1911, No. 5).— Sulphate of 

 iron introduced into holes drilled in the stems of chlorotic pears effected 

 a cure. The operation is performed in July, and the trees were 

 generally improved in September, and in the following year . completely 

 recovered. The iron is introduced in powdered form. — E.A.Bd. 



Christmas Rose, Fungoid disease of {Jour. Soc. Nat. Hort. Fr. 



series iv. vol. xii. May 1911, p. 222). — A note on a fungus affecting the 



