Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Radclyffe B. Roberts"'
Autor:
Radclyffe B. Roberts, Harold G. Fowler
Publikováno v:
Zeitschrift für Angewandte Entomologie. 94:149-152
Laboratory colonies of the carpenter ant, Camponotus pennsylvanicus, were tested in choice chambers for the ability to discriminate corn syrup solutions containing the insect growth regulators, altozar, methoprene, and RO 13–5223, from controls. No
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ed6691b489ecd236cb0d2170136ce0f
https://doi.org/10.1111/j.1439-0418.1982.tb02559.x
https://doi.org/10.1111/j.1439-0418.1982.tb02559.x
Autor:
Radclyffe B. Roberts, Mark R. Clark
Publikováno v:
Journal of Economic Entomology. 82:1576-1579
Honey bee, Apis mellifera L., worker consumption of a 40% sucrose solution and six different concentrations each of avermectin, hydramethylnon, and methoprene was tested. Each concentration of each compound was emulsified in a 40% sucrose solution. C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08b8e284ed97645b5e6e96556ea02120
https://doi.org/10.1093/jee/82.6.1576
https://doi.org/10.1093/jee/82.6.1576
Autor:
Radclyffe B. Roberts, Mark D. Parrish
Publikováno v:
Journal of Economic Entomology. 77:769-772
Avermectin B1 produced both acute (within 24 h) and chronic (after 6 days of exposure) mortality of 5th-instar Vespula maculifrons (Buysson). An acute LC50 of 38.4 ppm and a chronic LC50 of 2.99 ppm avermectin in food were found. Concentrations of 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edf9d38c6374e0f855979542b7979b76
https://doi.org/10.1093/jee/77.3.769
https://doi.org/10.1093/jee/77.3.769
Autor:
Radclyffe B. Roberts
Publikováno v:
Journal of Apicultural Research. 18:191-195
SummaryA spectrophotometric method for assaying minute quantities of sugar in solution has been modified for use on nectaries of plants and on insects which gather nectar. A flower is rinsed (or an insect crushed) in a measured amount of water; 1 ml
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8529fda017cecd5556d8e58561e19ee5
https://doi.org/10.1080/00218839.1979.11099966
https://doi.org/10.1080/00218839.1979.11099966
Publikováno v:
Annals of the Entomological Society of America. 71:619-627
Angiosperm pollen dimensions range from 5–210 μ with a mean of 34μ. Pollen transported by bees as dry grains has similar dimensions. Pollen grains ≥100 μ and ≤ 10μ constitute less than 4% of the total. Bees have evolved specialized hairs to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52af5cd6062696323590d9284af16139
https://doi.org/10.1093/aesa/71.4.619
https://doi.org/10.1093/aesa/71.4.619
Autor:
Harold G. Fowler, Radclyffe B. Roberts
Publikováno v:
Bulletin of the Entomological Society of America. 28:335-336
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc780b38209d3b8feeade21f7ec729bb
https://doi.org/10.1093/besa/28.3.335
https://doi.org/10.1093/besa/28.3.335
Autor:
Radclyffe B. Roberts
Publikováno v:
Science. 172:1226-1226
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebeecfc7848e5c7397ed99a447558816
https://doi.org/10.1126/science.172.3989.1226
https://doi.org/10.1126/science.172.3989.1226
Autor:
Radclyffe B. Roberts
Publikováno v:
Bulletin of the Entomological Society of America. 15:258-258
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bf2eb49689eafe4a71a12b564b008f6
https://doi.org/10.1093/besa/15.3.258a
https://doi.org/10.1093/besa/15.3.258a
Autor:
Radclyffe B. Roberts, Karl V. Krombein
Publikováno v:
Systematic Zoology. 16:261
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b4eaf758668dd19b7920eab6e7b962
https://doi.org/10.2307/2412072
https://doi.org/10.2307/2412072