Reports of Observations And Experiments in the Practical Work of the Division, Made Under the Direction of the Entomologist
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The Alder is the source of some of our destructive forest and fruit insects, and should this grub ever spread to other food trees it will be very annoying, though it can be subdued by proper spraying.
There seems to be a periodicity in the appearance of this beetle in unusual numbers, Harris having seen the same grubs in great abun- dance in 1854 in the same region. We have never observed it so com- mon and destructive before in Maine. It is most probable that the beetles hibernate under the le...aves and, soon after the leaves expand in May, lay their eggs in masses on them, the grubs scarcely stirring from the leaf on which they are born, until ready to pupate. The grubs are probably distasteful to birds, otherwise they would fall an easy prey to them and be kept within due limits.
Descriptive. — Larva. — Body somewhat flattened ; bead scarcely two-thirds as wide as the body in the middle; black, becominoj brown in front near the jaws.
Body livid brown above ; the tubercles black ; paler beneath ; with three pairs of 25 black jointed thoracic legs; uo abdominal legs, but an anal prop-leg.
What to read after Reports of Observations And Experiments in the Practical Work of the Division, Made Under the Direction of the Entomologist?
You can find similar books in the "Read Also" column, or choose other free books by United States. Division of Entomology to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The Alder is the source of some of our destructive forest and fruit insects, and should this grub ever spread to other food trees it will be very annoying, though it can be subdued by proper spraying.
There seems to be a periodicity in the appearance of this beetle in unusual numbers, Harris having seen the same grubs in great abun- dance in 1854 in the same region. We have never observed it so com- mon and destructive before in Maine. It is most probable that the beetles hibernate under the le...aves and, soon after the leaves expand in May, lay their eggs in masses on them, the grubs scarcely stirring from the leaf on which they are born, until ready to pupate. The grubs are probably distasteful to birds, otherwise they would fall an easy prey to them and be kept within due limits.
Descriptive. — Larva. — Body somewhat flattened ; bead scarcely two-thirds as wide as the body in the middle; black, becominoj brown in front near the jaws.
Body livid brown above ; the tubercles black ; paler beneath ; with three pairs of 25 black jointed thoracic legs; uo abdominal legs, but an anal prop-leg.
What to read after Reports of Observations And Experiments in the Practical Work of the Division, Made Under the Direction of the Entomologist?
You can find similar books in the "Read Also" column, or choose other free books by United States. Division of Entomology to read onlineMoreLess
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