Injuries to Forests And Forest Products By Roundheaded Borers
Injuries to Forests And Forest Products By Roundheaded Borers
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The same period represents the time when eggs are deposited for another gen- eration.
The usual preventive measures are recommended, i. E.. Remov- ing the bark from trees when felled or treating rustic work as recommended for the black- horned pine borer, except those felled in late fall or early winter, which should not be injured by this borer.
THE AVESTERN CEDAR BARK-BORER.
(Hylotrupes ametliy 'stiiuis Lee. ) The western cedar bark-borer is a relative of the preceding, the cedar-tree borer. ...Unlike the latter, however, its range is con- siderably restricted. The rec- ords of the branch of forest in- sect investigations, Bureau of Entomology, indicate that it is found only in the Pacific Coast States. It is of considerable eco- nomic importance, however, in injuring the bark and wood of recently felled giant arborvita? and incense cedar.
The larva (fig. 25, a) is a large, fleshy, yellowish-white grub, provided with three pairs of feet. The largest larvae are about 25 mm. Long at maturity and about 8 mm.
What to read after Injuries to Forests And Forest Products By Roundheaded Borers?
You can find similar books in the "Read Also" column, or choose other free books by Jesse Lee Webb to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The same period represents the time when eggs are deposited for another gen- eration.
The usual preventive measures are recommended, i. E.. Remov- ing the bark from trees when felled or treating rustic work as recommended for the black- horned pine borer, except those felled in late fall or early winter, which should not be injured by this borer.
THE AVESTERN CEDAR BARK-BORER.
(Hylotrupes ametliy 'stiiuis Lee. ) The western cedar bark-borer is a relative of the preceding, the cedar-tree borer. ...Unlike the latter, however, its range is con- siderably restricted. The rec- ords of the branch of forest in- sect investigations, Bureau of Entomology, indicate that it is found only in the Pacific Coast States. It is of considerable eco- nomic importance, however, in injuring the bark and wood of recently felled giant arborvita? and incense cedar.
The larva (fig. 25, a) is a large, fleshy, yellowish-white grub, provided with three pairs of feet. The largest larvae are about 25 mm. Long at maturity and about 8 mm.
What to read after Injuries to Forests And Forest Products By Roundheaded Borers?
You can find similar books in the "Read Also" column, or choose other free books by Jesse Lee Webb to read onlineMoreLess
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