 | Thaddeus William Harris, Massachusetts. Zoological and Botanical Survey - 1841 - 484 pages
...account* of this insect, the grubs attain their full size by the twentieth of July, soon become pupae, and are changed to beetles and leave the trees early...the ground, with the view of destroying the grubs contained in them, as well as to promote a more vigorous growth. Much evil might be prevented by employing... | |
 | Cuthbert William Johnson - 1844 - 1210 pages
...272), of this insect, the grubs attain their full size by the twentieth of July, soon become pupoe, and are changed to beetles and leave the trees early...the ground, with the view of destroying the grubs contained in them, as well as to promote a more vigorous growth. Much evil might be prevented by employing... | |
 | Thaddeus William Harris - 1852 - 536 pages
...account* of this insect, the grubs attain their full size by the twentieth of July, soon become pupae, and are changed to beetles and leave the trees early...the ground, with the view of destroying the grubs contained in them, as well as to promote a more vigorous growth. Much evil might be prevented by employing... | |
 | American Institute of the City of New York - 1853 - 550 pages
...trees early in September. Thus the existence of this species is limited to one year. "White washing and covering the trunks of the trees with grafting...great extent in plantations or large nurseries of these trees. Perhaps it will be useful to head down young trees to the ground with the view of destroying... | |
 | Cuthbert William Johnson - 1869 - 1296 pages
...272), of this insect, the grubs attain their full size by the twentieth of July, soon become piiprr. and are changed to beetles and leave the trees early...carried to any great extent in plantations or large nur- , series of the trees. Perhaps it will be useful to head down young trees to the ground, with... | |
 | 1881 - 284 pages
...insect dies by asphyxiation — ic, drowns. Harris states that whitewashing and covering the trnnks of the trees with grafting composition may prevent the female from depositing her eggs npon isolated trees. Also, yonng trees might be beaded down to the ground, so as to destroy the grubs... | |
 | Thaddeus William Harris - 1862 - 694 pages
...excellent account* of this insect, the grubs attain their full size by the 20th of July, soon become pupae, and are changed to beetles and leave the trees early...depositing her eggs upon them ; but this practice cannot be earned to any great extent in plantations or large nurseries of the trees. Perhaps it will be useful... | |
 | Kansas State Horticultural Society - 1889 - 516 pages
...injuries they have suffered. The grubs attain their full size by the 20th of July, soon become pupae, and are changed to beetles, and leave the trees early...upon them; but this practice cannot be carried to any extent in plantations or large nurseries of trees. Perhaps it would be useful to head down young trees... | |
 | Kansas State Horticultural Society - 1889 - 522 pages
...injuries they have suffered. The grubs attain their full size by the 20th of July, soon become pupae, and are changed to beetles, and leave the trees early...upon them; but this practice cannot be carried to any extent in plantations or large nurseries of trees. Perhaps it would be useful to head down young trees... | |
 | Kansas State Horticultural Society - 1889 - 520 pages
...injuries they have suffered. The grubs attain their full size by the 20th of July, soon become рпрш, and are changed to beetles, and leave the trees early...upon them; but this practice cannot be carried to any extent in plantations or large nurseries of trees. Perhaps it would be useful to head down young trees... | |
| |
July, soon become pupae, and are changed to beetles and leave the trees early in September. Thus the existence of this species is limited to one year. White-washing, and covering the trunks of the trees with grafting composition, may prevent the female... 
