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Integrated control of Carduus thistles and ecological studies on Rhinocyllus conicus Froelich and Ceuthorhynchidius horridus (Panzer)


, : Integrated control of Carduus thistles and ecological studies on Rhinocyllus conicus Froelich and Ceuthorhynchidius horridus (Panzer). Dissertation Abstracts International, B 41(5): 1643

An integrated control programme for Carduus thistles using the biological control agents Rhinocyllus conicus and Ceuthorhynchidius horridus and 2,4-D is described.

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Related references

Enrique, A.; Cordo, H.; Crouzel, I.-De; Gimenez-Tanzi, M., 1983: Importation of Rhinocyllus conicus Froelich and Trichosirocalus horridus Panzer for the biological control of thistles in Argentina. Malezas Asociacion Argentina para el Control de Malezas1(1): 233-241

Trumble, J.T.; Kok, L.T., 1980: A bibliography of Ceuthorhynchidius horridus (Panzer) (= Trichosirocalus horridus (Panzer)), an introduced weevil for the biological control of Carduus thistles. A bibliography is presented on Trichosirocalus horridus (Panz.) (Ceuthorhynchidius horridus), a weevil introduced into the USA in 1974 for the control of thistles of the genus Carduus. A table categorising the literature into major areas of intere...

Surles, WW., 1976: Impact of Rhinocyllus conicus Froelich (Coleoptera: Curculionidae) on the reproduction of Carduus thistles in Virginia. Dissertation Abstr lnt, 374: 1544

Surles, W.; Kok, L., 1975: Sequential releases of Rhinocyllus conicus Froelich (Coleoptera: Curculionidae) for the biocontrol of Carduus thistles. Journal of the New York Entomological Society: 83 (4) 250

Trumble, J.T.; Kok, L.T., 1980: Impact of 2,4-D on Ceuthorhynchidius horridus (Coleoptera: Curculionidae) and their compatibility for integrated control of Carduus thistles. Acute and chronic effects of spring application of 2,4-D on adult C. horridus were examined by determining dose-mortality response and adult vitality. LC50 values for males (70.2 kg/ha) and females (61.4 kg/ha) corresponded to 41.7 and 36.6 times,...

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Kok, L.T., 1981: Compatibility of Rhinocyllus conicus, Trichosirocalus horridus and 2,4-D for Carduus thistle control. Combined use of the thistle head weevil, Rhinocyllus conicus (Coleoptera:Curculionidae) and the rosette weevil, Trichosirocalus horridus (Coleoptera:Curculionidae) for the biological control of Carduus thistles in Virginia, USA have shown that the...

Santis, L. de; Monetti, N.C.; Briano, A.E. de, 1987: Natural enemies of Rhinocyllus conicus (Froelich, 1792) (Coleoptera: Curculionidae), a biological control agent of Carduus thoermeri Kazmi and Carduus acanthoides L. (Compositae) in Castelar, Buenos Aires Province, Argentina. Studies were carried out in Argentina in 1983-87 to determine the natural enemies of Rhinocyllus conicus, a biological control agent of the weeds Carduus thoermeri and C. acanthoides, which was introduced into the province of Castelar in 1980 and...

Kok, Lt, 1981: Compatibility of Rhinocyllus conicus, Trichosirocalus horridus and 2,4-D for Carduus thistle control Weeds in the U.S.A., Virginia. Proceedings of the Fifth International Symposium on Biological Control of Weeds July 1980 ES Del Fosse editor: 445

Boldt, P.E.; Kok, L.T., 1982: Bibliography of Rhinocyllus conicus Froel. (Coleoptera: Curculionidae), an introduced weevil for the biological control of Carduus and Silybum thistles. Thistles belonging to the subfamily Cynareae of the Compositae invade pastures, rangelands and occasionally croplands in North America, severely reducing yields by crowding beneficial plants and removing water and nutrients from the soil. Livestoc...