TOR 



592 



TRA 



placing the charred articles of all kinds, selves down by threads, and thus es- 

 equal to the last ; a potting shed ; mush- cape.'" — Gard. Chron. 



room shed ; stove shed ; fruit rooms, 

 and onion lofts, &c. &c. — Each and all 

 are kept under the above regulations." 



TORENIA scabra and cordifolia. 

 Green-house evergreen shrubs. Seeds. ' 

 Sandy loam. There are two other spe- 

 cies not worth cultivating. 



TORTRIX. A genus of moths. 



T. ocellana. This is the parent of 

 the red bud caterpillar, which destroys 

 the buds of the apple and pear. Upper 

 wings gray, with a white transverse 

 band. 



T. Wceberiana. Plum tree Tortrix. 

 Its larva feeds on the inner bark of the 

 plum, apricot, almond, and peach. The 



T. luscana generates a red grub, and grubs pierce holes through the bark, 

 T. cynosbana a black-spotted green which may be detected by small heaps 



grub, both very destructive of blossom 

 buds. 



T. vitisana. Vine Tortrix. Found 

 on the vine in April and May ; head 

 yellow; upper wings marbled with rusty 

 and gray colours. Caterpillars appear 



of red powder upon it. Moth brown ; 

 grub greenish, with a red head. 



T. pomonana. Codling Moth. Its 

 reddish-white grub is common in apples 

 and pears. Moth light gray, streaked 

 with dark gray. Seen of an evening 



as the blossom buds open, which they , during May, and the grubs appear soon 



unite with white threads 



T. nigricana. Red Plum Grub Tor- 

 trix. Moth black, appearing in June. 

 Eggs deposited on the plum ; grub, 

 small red, pierces the fruit, and is found 

 near the stone. Mr. Curtis observes, 

 that — " If the plums that have fallen otF 



after. All fallen apples should be de- 

 stroyed, because they usually contain 

 this or other grubs, which will otherwise 

 produce moths, and multiply the evil. 



" T. turionana, T. hyrcyniana, T. 

 resinella, and T. buoliana, all infest 

 pine trees, injuring them by depositing 



be examined, a small red caterpillar their eggs in the buds, which are sub- 

 will be found within it; the caterpillar sequently preyed upon by their eater- 



being generally full grown when the 

 plum falls off, soon creeps out, and 

 penetrates the loose bark, forming a 

 case in w-hich it remains during the 

 winter. Early in the spring it changes 



pillars.'" — Kollar. — Gard. Chron. 



TOUCH-ME-XOT. Impatiens. 



TOURRETIA lappacea. Hardy 

 climbing annual. Seeds. Light soil. 



into a light brown pupa, and the moth rita. 



TOWER MUSTARD. Arabis Tur- 



emerges about June. The moth is not 

 so large as a house-fly; its wings are 

 almost black, and when the sun is 

 shining on them, they have a remarka- 

 bly metallic lustre; on the outer edge 

 of the fore wings there is an appearance 

 of fine silver dust. Among the reme- 



TRACHELIUM caruleum. Hardy 

 herbaceous perennial. Seeds or cut- 

 tings. Light soil. 



TRACHYMEXE. Six species. Green- 

 house annuals; increased by seed, and 

 green-house and stove evergreen shrubs. 



J- „ J t 1 .1 c increased by voung cuttings. Loam 



dies proposed to lessen the ravages of , , ■' ^- •. ^., ,," 



- '^ ^ = and sandy peat suits them all 



TRACHVTELLA actcea. 



this insect, it is recommended to shake 

 the trees, and remove all the fruit that 

 falls off; and another good method is 



house evergreen climber. 



to scrape the rough pieces of bark of tings- Peat and loam. 



Green- 

 Ripe cut- 



the stem, under which the cocoons are 

 concealed ; this must be done late in 

 the autumn, or early in the spring." — 

 Gard. Chron. ' 



T. Bergmanniana. Rose Tortrix. 

 Differs little to a common observer 

 from the preceding. " Where bushes 



TRADESCANTIA. Twenty-seven 

 species. Chiefly stove and hardy herb- 

 aceous perennials. A few hardy an- 

 nuals, and stove and green-house ever- 

 green trailers. T. paniculata is a green- 

 house biennial. T. tuberosa is a stove 

 tuberous-rooted perennial. Division. 



are much infested with the larvae of The annuals, seeds. Rich light soil 



these insects, it is much better to cut 

 them down and burn the shoots ; this 

 and hand-picking are the only remedies 

 we are acquainted with. Care must be 

 taken not to disturb the maggots when 

 collecting them, for they will let them- 



suits them all. 



TRAGOPOGOX. Goat"s beard. Fif- 

 teen species. Hardy biennials. Seeds. 

 Common soil. T. po7-r if olius is ihe gar- 

 den Salsafy. 



TRAGOPYRUM. Three species. 



