279 



ROSE OF HEAVEN. 



shoots in summer and autumn. The 

 caterpillars of several small moths 

 are also very destructive to Rose 

 trees. One of these, which is called 

 a Leaf -miner, lives within the leaf, 

 where it feeds upon the ptflpy mat- 

 ter, leaving traces of its course by a 

 number of pale yellow zig-zag lines, 

 which are occasioned by the skin of 

 the leaf withering when deprived of 

 the pulpy matter which supported 

 it. The perfect insect is called the 

 Red-headed Moth {Microsetia rufi- 

 cajntella) ; and it is so small, that 

 even with its wings expanded it does 

 not measure more than a quarter of 

 an inch. Another very destructive 

 insect is the maggot or grub of one 

 of the saw-flies. The perfect insect, 

 which is a beautiful creature, with 

 transparent wings, lays its eggs in a 

 flower-bud ; and in this the grub is 

 hatched, eating its way out and 

 destroying the petals that it passes 

 through. Other insects are a kind of 

 leaf-rollers, not exactly like those 

 that infest the oak, but a species of 

 the genus Lyda (belonging to the 

 Tenthredinidce), which construct a 

 portable case in which they enfold 

 themselves, of pieces of leaves, which 

 they cut out and fasten together in 

 a spiral direction. Besides, there is 

 the Rose Moth, a species of Tortrix, 

 which fastens the bud, by a number 

 of slender threads, to one of the 

 leaves, which it doubles up Kke the 

 folds of a fan. 



The only sure remedies for all 

 these insects are hand-picking and 

 frequent syringing. Tobacco-water 

 is also used ; and this is made by 

 pouring a gallon of boiling water on 

 half a pound of the best shag to- 

 bacco, and letting the decoction 

 remain till it is cold. The infected 

 shoots should then be dipped in the 

 tobacco-water, and suffered to re- 

 main in it about a minute, and then 

 washed with clean water. If the 



tobacco-water be suffered to dry on 

 the plants, it will blacken the young 

 shoots; and the remedy will thus 

 be worse than the disease. Lime- 

 water is also sometimes used, but 

 no more lime should be put into the 

 water than to make it look slightly 

 milky ; and the leaves should be 

 washed after it has been suffered to 

 remain on a short time. A strong 

 decoction of quassia is another re- 

 medy, and it is better than either 

 lime or tobacco -water, as it does 

 not injure the appearance of the 

 plants. Dipping the shoots in clean 

 water, and laying them on one hand, 

 while a soft brush is gently passed 

 over them with the other, is also 

 found very efficacious. 



Rosco'ea. — Sciicuninece. — Hand- 

 some stove-plants, somewhat resem- 

 bling the Indian Shot. They should 

 be grown in loam, peat, and sand ; 

 and they are increased by dividing 

 the root. 



Rose. — See Ro'sa. 



Rose Acacia. — Rohinia Mspida. 

 — A very handsome shrub with 

 pinnate leaves, and long drooping 

 racemes of rose-coloured flowers. It 

 will grow in any soil, but it should 

 be placed in a sheltered situation, 

 on account of the brittleness of its 

 branches, and their liability to be 

 broken off by high winds. — See 

 Robi'nia. 



Rose Bay.— See Rhodode'ndron 

 and Ne'riuit. 



Rose Campion. — Agrostemma. 

 — The very pretty flowers known by 

 this English name are included by 

 many botanists in the genus Lych- 

 nis. Many of the kinds are annuals ; 

 but the common Rose Campion, A. 

 coronaria, is a perennial. 



Rosemary. — Rosmaei^ xus. 



Rose OF Heaven. — Agrostemma 

 or Lychnis Cce'li Bdsa. — An orna- 

 mental annual from the Levant 

 quite hardy in British gardens. 



