Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R. L. Hanna"'
Autor:
F. E. Gilstrap, Horace W. Van Cleave, Dial F. Martin, Williams G. Gladney, O. H. Graham, R. L. Hanna
Publikováno v:
American Entomologist. 37:58-59
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee37cdd9a75304641ff0bd3515d7374a
https://doi.org/10.1093/ae/37.1.58a
https://doi.org/10.1093/ae/37.1.58a
Autor:
R. L. Hanna, J. K. Walker
Publikováno v:
Journal of Economic Entomology. 56:350-356
Seasonal populations of boll weevils, Anthonomus grandis Boheman, were carefully sampled in a number of small cont iguous cotton fields where control programs with different inticides were being conducted. Records were also made of cotton fruiting an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfbf2034f95df65897321b22bbdf3387
https://doi.org/10.1093/jee/56.3.350
https://doi.org/10.1093/jee/56.3.350
Autor:
R. L. Hanna, J. C. Gaines
Publikováno v:
Journal of Economic Entomology. 43:288-292
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e90a9b88029fe01913a066f44e4a99cf
https://doi.org/10.1093/jee/43.3.288
https://doi.org/10.1093/jee/43.3.288
Publikováno v:
Journal of Economic Entomology. 57:657-663
Populations of Heliothis larvae composed of the bollworm, H . zea (Boddie), and the tobacco budworm, H . virescens (F.), were studied in small field plots undergoing treatment with various insecticides. The occurrence of larval populations broadly pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1143bd4abd8735520d52af57b6923c9
https://doi.org/10.1093/jee/57.5.657
https://doi.org/10.1093/jee/57.5.657
Autor:
R. L. Hanna, J. K. Walker
Publikováno v:
Journal of Economic Entomology. 53:228-231
During 1956, 1957; and 1958 15 replicated field-plot insecticide- Comparison experiments were conducted in the Robertson- Burleson County area of south-central Texas to determine the Effectiveness of various insecticides for control of boll weevils,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e90f19557f870f83307f1f9eb5bf9dcd
https://doi.org/10.1093/jee/53.2.228
https://doi.org/10.1093/jee/53.2.228
Publikováno v:
Journal of Economic Entomology. 44:347-350
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::515c79228f7d1012cf4f7fed9192e55a
https://doi.org/10.1093/jee/44.3.347
https://doi.org/10.1093/jee/44.3.347
Autor:
R. L. Hanna
Publikováno v:
Journal of Economic Entomology. 51:160-163
Replicated tests conducted during three growing seasons (1954, 1955, 1956) at College Station, Texas, have shown that several systemic insecticides (demeton, Am. Cyanamid 12008 and 12009, Thimet and Bayer, 19639) applied as seed treatments adequately
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc4d49830fb8288eb701fc8ae796958
https://doi.org/10.1093/jee/51.2.160
https://doi.org/10.1093/jee/51.2.160
Autor:
R. L. Hanna, J. K. Walker
Publikováno v:
Journal of Economic Entomology. 59:265-267
Cotton-quality tests were conducted on lint and seed samples collected from a series of insecticide experimental treatments. Despite considerable damage to bolls by the boll weevil, Anthonomus grandis Boheman, and the bollworm, Heliothis zea (Boddie)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99993551de76051af9dd4e07f3d70108
https://doi.org/10.1093/jee/59.2.265
https://doi.org/10.1093/jee/59.2.265
Publikováno v:
Journal of Economic Entomology. 57:448-450
Various levels of bollworm infestation were maintained on cotton grown under screen cages. Seasonal average infestation records indicated 10 or more larvae per 100 plants may cause significant yield losses. Because of the variability among replicates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08baf97f985736ad188ed1900acec686
https://doi.org/10.1093/jee/57.4.448
https://doi.org/10.1093/jee/57.4.448
Autor:
J. K. Walker, R. L. Hanna
Publikováno v:
Journal of Economic Entomology. 56:586-588
Field evaluations of insecticides for boll weevil, Anthonomus grandis Boheman, control from 1959 through 1961 utilizing Youden square plot arrangements demonstrated advantages of this technique for comparing large numbers of insecticidal treatments.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82b3905afee744b78c8c256e7e26be14
https://doi.org/10.1093/jee/56.5.586
https://doi.org/10.1093/jee/56.5.586