Journal of Economic Entomology, Volume 6Entomological Society of America, 1913 |
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Results 6-10 of 76
Page 76
... region . Care should be taken in doing this work to cut out all poor and worth- less trees , and if possible to leave for reforesting purposes , vigorous specimens of ash , maple , pine , or coniferous trees of which the insect is not ...
... region . Care should be taken in doing this work to cut out all poor and worth- less trees , and if possible to leave for reforesting purposes , vigorous specimens of ash , maple , pine , or coniferous trees of which the insect is not ...
Page 79
... region is suitable for growing white pine , which is far more valuable , and it is becoming apparent that the oaks will be eliminated , either gradually as a result of moth attack and other insect injury or by the efforts of man to ...
... region is suitable for growing white pine , which is far more valuable , and it is becoming apparent that the oaks will be eliminated , either gradually as a result of moth attack and other insect injury or by the efforts of man to ...
Page 89
... region of Con- necticut regarding mosquito control . A good beginning has also been made in draining marsh areas . The work herein described has all been done by community effort and the funds expended have been raised wholly by ...
... region of Con- necticut regarding mosquito control . A good beginning has also been made in draining marsh areas . The work herein described has all been done by community effort and the funds expended have been raised wholly by ...
Page 99
... region flies are widely dis- tributed and unusually abundant . Upon the other hand , 1. Pellagra has never been produced in any other animal experi- mentally either through inoculation or through transference by means of sand - flies ...
... region flies are widely dis- tributed and unusually abundant . Upon the other hand , 1. Pellagra has never been produced in any other animal experi- mentally either through inoculation or through transference by means of sand - flies ...
Page 104
... regions are difficult . to collocate , but the greater rural incidence seems to be an established fact . The significance of this distribution becomes very great when we consider the fact that both domestic animals and the majority of ...
... regions are difficult . to collocate , but the greater rural incidence seems to be an established fact . The significance of this distribution becomes very great when we consider the fact that both domestic animals and the majority of ...
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Common terms and phrases
abundant adults Agricultural Experiment Station animals antennæ appears apple Arizona Association attack beetle blood breeding brown-tail bulletin Bureau of Entomology C. L. Marlatt California caterpillars cent Chosica citrus codling moth committee coöperation cotton deposited disease districts economic entomology eggs enemies engorged Federal Horticultural Board feeding female fever field flies food plants forest fruit fly gipsy moth habits Horticultural host humidity hyperparasites important infested injury inspector investigations July known large number larva larvæ Mediterranean fruit fly Microterys monkeys mosquitoes Nitzsch nursery stock nurserymen nymphs observed occur officers orchard oviposition ovipositor paper parasites Pellagra Piura poliomyelitis Porto Rico Postmaster present PRESIDENT W. D. HUNTER probably Prof pupa pupation region season seconds soft scale species specimens spiders spraying stable fly stage Stomoxys straw sugar cane summer temperature ticks tion trees U. S. Bureau unsprayed verruga weevil winter writer
Popular passages
Page 138 - Nursery stock, including all field-grown florists' stock, trees, shrubs, vines, cuttings, grafts, scions, buds, fruit pits and other seeds of fruit and ornamental trees or shrubs, and other plants and plant products for propagation, except field, vegetable, and flower seeds, bedding plants and other herbaceous plants, bulbs, and roots...
Page 501 - If you inquire at your home station, you can ascertain whether certificates and through tickets can be obtained to place of meeting. If not obtainable at your home station, the agent will inform you at what station they can be obtained. You can in such case purchase a local ticket thence, and there purchase through ticket and secure certificate to place of meeting.
Page 501 - If you arrive at the meeting and leave for home again prior to the Special Agent's arrival, or if you arrive at the meeting later than...
Page 138 - ... buds, fruit pits, and other seeds of fruit and ornamental trees or shrubs, and other plants and plant products for propagation (except field, vegetable, and flower seeds) , bedding plants, and other herbaceous plants, bulbs, and roots, may be admitted to the mails only when accompanied...
Page 501 - Be sure that, when purchasing your going ticket, you request a CERTIFICATE. Do not make the mistake of asking for a "receipt.
Page 138 - ... be admitted to the mails only when accompanied with a certificate from a State or Government inspector to the effect that the nursery or premises from which such...
Page 156 - ... of vital activities then obtaining. Conclusions. The use of oils or oil preparations on dormant trees has been followed in several cases by severe injury. Trees, as living organisms, respond to climatic and cultural conditions and as a consequence their power of resisting penetration and injury by oils undoubtedly varies with the season and probably from year to year. Since certain weather conditions promote injury by oils, it appears impossible to be sure that deleterious effects may not follow...
Page 107 - ... virulent form, resulting in death, the other 3 with transient tremblings, partial paralysis, diarrhoea and recovery. It is interesting to note that several of the monkeys had diarrhoea, therein the disease resembles the human disease more closely than when monkeys are simply inoculated with the virus into the brain, for gastro-intestinal upsets in children are frequently associated with infantile paralysis. In these experiments it is important, we think, to use the proper technic in order to...
Page 254 - I do not know that I can add very much to what has already been said with reference to this summer school.
Page 19 - Association by transmitting proper credentials to the Secretary, and by authorizing him to sign their names to this constitution. Other persons engaged in practical work in economic entomology may be elected by a two-thirds vote of the members present at...