. Economic entomology for the . Pigeon Tremex, T. columba.—a, larva, with young larva of Thalessa fastened to its side ; b, its head; c, d, female and male pupae ; e, female. able variety of trees, including maple, elm, hickory, and beech, and bores into the solid wood, usually when the tree is beginning to die, or is even dead, but not decayed. Dealing with these insects is always rather a difficult matter, - because we have no means of getting into the infested plants with insecticides. We are again reduced to farm practice, and must arrange our methods of cultivation in such a way
. Economic entomology for the . Pigeon Tremex, T. columba.—a, larva, with young larva of Thalessa fastened to its side ; b, its head; c, d, female and male pupae ; e, female. able variety of trees, including maple, elm, hickory, and beech, and bores into the solid wood, usually when the tree is beginning to die, or is even dead, but not decayed. Dealing with these insects is always rather a difficult matter, - because we have no means of getting into the infested plants with insecticides. We are again reduced to farm practice, and must arrange our methods of cultivation in such a way as to reach and destroy the insects by depriving them of food. Thus, with the Phylloecus infesting blackberry, if the canes are topped about midsummer, or a little before, the larvae never mature, because
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublishernp, bookyear1896
