. The book of the garden. Gardening. INSECTS INJURIOUS IN THE FLOWER-GARDEN. 835 Fig. of grapes, and moves on and continues to depo- sit eggs in bunches, until she has been delivered of about one hundred and twenty in all. In March and April they are batched, after which they sit near the spot whfire they were hatched in a crowd together for several days, according to the warmth of the weather, as if it were to gain strength to enable them to ascend the trees. At this time their destruction should be attend- ed to, and if omitted an important chance is lost. The typographer bark-beetle,
. The book of the garden. Gardening. INSECTS INJURIOUS IN THE FLOWER-GARDEN. 835 Fig. of grapes, and moves on and continues to depo- sit eggs in bunches, until she has been delivered of about one hundred and twenty in all. In March and April they are batched, after which they sit near the spot whfire they were hatched in a crowd together for several days, according to the warmth of the weather, as if it were to gain strength to enable them to ascend the trees. At this time their destruction should be attend- ed to, and if omitted an important chance is lost. The typographer bark-beetle, fig. 280 {Boa- tAchus tijpographns Fabr., Tomicus typographi- cus Latreille). — The bark- beetles are by far the most formidable of those insects which commit such destruc- tion on the different kinds of pines and firs, and this is the most destructive of them all. The section takes their name from the place of their abode, which is under the bark, where they find their food, which con- sists of the alburnum and partly of the inner bark it- self. B. typographus, for the most part, attacks the silver fir (Abies picea), although it visits other pines also. We are not aware that it has been found injurious to young trees, nor that it abounds to a very great extent in Bri- tain, probably on account of the comparatively few sil- ver firs we have of from eighty to one hun- dred years' growth, the age at which they do most mischief. That they do exist we have the evidence of our own eyes, having detected them this season in trees at Braco Castle, Perthshire; they have also been observed in England. This insect, in the beetle state, is nearly two lines and a half in length, and about one and a quar- ter broad, covered with a hairy coating. While it remains on the bark it is of a rusty yellow colour, becoming of a brownish black after it escapes into the air, jaws sharply toothed, wing- cases deeply punctured, broadest behind, deeply and obliquely impressed. The thorax and ster- num d
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
