Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Richard B. Smelser"'
Autor:
Richard B. Smelser
Bean leaf beetle, Cerotoma trifurcata (Forster), adults were sampled from 1986 through 1988 in soybean and alfalfa in central Iowa to ascertain the seasonal and diurnal phenology of this pest. Data from all three years indicated that two generations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48306874a4c7f1fb4492b3550528f5b9
https://doi.org/10.31274/rtd-180813-10924
https://doi.org/10.31274/rtd-180813-10924
Autor:
Larry P. Pedigo, Richard B. Smelser
Publikováno v:
Journal of Economic Entomology. 85:2399-2403
Soybeans, Glycine max (L. Merrill), in field cages were infested with bean leaf beetle, Cerotoma trifurcata (Forster), adults to determine the effect oflate-season pod feeding on soybean seed yield and quality. Regression analysis revealed that a 3.0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b3440ba2751589dbaac667a25daeb80
https://doi.org/10.1093/jee/85.6.2399
https://doi.org/10.1093/jee/85.6.2399
Autor:
Larry P. Pedigo, Richard B. Smelser
Publikováno v:
Journal of Economic Entomology. 85:2408-2412
Soybeans ( Glycine max L. Merrill) in field cages were infested in a normal year (1987) and a drought year (1988) with adult bean leaf beetles, Cerotoma trifurcata (Forster), to ascertain the feeding behavior of this pest during late season (mid-Augu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e235cb3999490561c89df9039d4aa217
https://doi.org/10.1093/jee/85.6.2408
https://doi.org/10.1093/jee/85.6.2408
Autor:
Richard B. Smelser, Larry P. Pedigo
Publikováno v:
Journal of Economic Entomology. 85:2404-2407
Bean leaf beetle adult and injured-pod dispersion was determined by using Iwao’s regression and Taylor’s power law. Both analyses indicated that adults are significantly aggregated, but injured pods are randomly distributed. Sequential count plan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e71ac12a96fe4e754f5f43a3719096f6
https://doi.org/10.1093/jee/85.6.2404
https://doi.org/10.1093/jee/85.6.2404
Publikováno v:
Journal of Economic Entomology. 84:879-885
The black cutworm, Agrotis ipsilon (Hufnagel), larva is a pest of seedling corn in the Midwest. Adults migrate from the south during the spring. Determination of their arrival date is critical to anticipate accurately the time of appearance of larvae
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76b4ad1beda6c26266b6e0a2d95523d9
https://doi.org/10.1093/jee/84.3.879
https://doi.org/10.1093/jee/84.3.879
Autor:
Richard B. Smelser, Larry P. Pedigo
Publikováno v:
Environmental Entomology. 20:514-519
Bean leaf beetle, Cerotoma trifurcata (Forster), adults were sampled from 1986 through 1988 in soybean and alfalfa in central Iowa to ascertain the seasonal phenology of this pest. Data from all 3 yr indicate that two generations of this insect occur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6860fb8c04be241dcc95ffba9ce99986
https://doi.org/10.1093/ee/20.2.514
https://doi.org/10.1093/ee/20.2.514
Publikováno v:
Bulletin of the Entomological Society of America. 34:9-16
Many insect species are not adapted for surviving the harsh winter temperatures of the midwestern United States, and they must recolonize the region annually. Several of these migratory species pose a threat to midwestern agriculture. For example, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51e7b55126ccb399b9a20bed984b2dda
https://doi.org/10.1093/besa/34.1.9
https://doi.org/10.1093/besa/34.1.9
Autor:
S. Elwynn Taylor, Juan D. Lopez, Richard B. Smelser, Fred Whitford, John F. Robinson, Armon J. Keaster, William B. Showers
Publikováno v:
Environmental Entomology. 18:447-458
Surface synoptic weather maps, atmospheric trajectory forecasts, and observational upper-air reports (radiosonde data) were used to estimate the relative displacement of black cutworm, Agrotis ipsilon (Hufnagel), moths dyed with Calco Red N-1700 from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d9d6f244471206f6e51d92d53e62174
https://doi.org/10.1093/ee/18.3.447
https://doi.org/10.1093/ee/18.3.447
Autor:
John F. Robinson, Richard B. Smelser, Armon J. Keaster, S. Elwynn Taylor, Fred Whitford, Juan D. Lopez, William B. Showers
Publikováno v:
Ecology. 70:987-992
Ecological and evolutionary research on lepidoptera migration has tradi- tionally concentrated on the long-range dispersal of day-flying butterflies. Nocturnal flights at high altitudes and the difficulty in species identification have resulted in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38028529b35b8c21c793b0bbe809f90
https://doi.org/10.2307/1941366
https://doi.org/10.2307/1941366
Autor:
Richard B. Smelser, Leon G. Higley, Larry P. Pedigo, P.M. Lasack, Scott H. Hutchins, R. K. D. Peterson
Publikováno v:
Insecticide and Acaricide Tests. 12:168-169
Experimental plots measuring 7 X 12 m were established in a 2-year-old stand on the Ankeny Research Farm near the city limits of Ankeny, IO. Nine treatments were replicated 4 times in a randomized complete-block design. Insecticide treatments were ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b36299254c43b2e68f539a357c188b05
https://doi.org/10.1093/iat/12.1.168
https://doi.org/10.1093/iat/12.1.168