With regard to those plants of which we may take the bryony and the hop as the types, it is true that their bine is annual; but each year the quantity and strength of this augments—each year the mass of foliage becomes larger and thicker. The twining arms twist around any branch strong enough to support them, and then, once at the top of the fence, they spread over its surface, making so thick a mass that the legitimate hedge-plants are no longer visible; thus sun and air are excluded from them, and they soon pine away. These are difficult to eradicate, as they have stout rhizomata (underground stems) interlaced with the very roots of the hedge-plants: still, if pains be taken to pluck away the bine as soon as it makes its appearance, it must in time be destroyed; for, like even the hawthorn tree, hardy as it is, if the leaves be kept from perfecting themselves, they soon pine away, and ultimately die altogether.
The other plants are more properly weeds of the hedge-bank than of the hedge, and as such need only be mentioned with weeds in general as pests to be periodically removed by hoeing, digging, and otherwise clearing the ground between and about the hedge-row work, more particularly necessary in the first few years of planting.
CHAPTER XXXVI.
ON HEDGE-ROW TIMBER.
Of the many sources of mischief to which the farmer may be liable, we can conceive none greater than that of being overgrown with hedge-row timber. It is scarcely, if at all, second to that of being overstocked with game—for as regards game, there is a chance of getting some compensation for palpable injury; but the mischief which trees silently but surely effect, when surrounding fields, is never allowed for, as it is not fully appreciated by the tenant, and never admitted by the landlord; and so as hedge-row timber is usually thicker in the richer parts of the country, it is somehow considered as an evidence of fertility on the one hand, while it is looked upon as a legitimate mode of increasing income on the other.
But we are quite sure that hedge-row timber is almost useless in itself, and a pest to all who must live under it. Hedges themselves are usually too many, and these too thick through them; and when it comes to be understood that the enclosures are smaller, the hedges often greater, and hedge-row timber thicker on good than on bad lands, some idea may be formed of the mischief which is inflicted by thus hemming in fine land from light and air.
The following tables, by Mr. J. Bravender, land-surveyor, of Cirencester, are the results of an “examination of the fields contained in 120 parishes:”—