Alcidodes sedi (Col.: Curculionidae), a natural enemy of Bryophyllum delagoense (Crassulaceae) in South Africa and a possible candidate agent for the biological control of this weed in Australia

Plantlet recruitment is the key demographic transition in invasion byKalanchoe daigremontiana

“…The model showed that a decrease in survival and growth of plantlets causes a proportional increase in the extinction probability of K. daigremontiana. The weevils O. tenuipes and A. sedi, known to reduce these two rates under experimental conditions, are currently being evaluated in Australia as biological control agents against Kalanchoe invasive populations (DEH 2003;Witt 2004;Witt et al 2004;Palmer et al 2010). …”

“…The control of this species seems feasible. Potential biocontrol agents and specific herbicides have been identified to control populations in Australia (Hannan-Jones and Playford 2002;Witt 2004;Witt et al 2004). Moreover, at Cerro Saroche National Park, the invasion process has not reached yet the expansion phase.…”

The Genus Kalanchoe (Crassulaceae) in Ecuador: From Gardens to the Wild

“…Potential biocontrol agents, options of mechanic control and specific herbicides have been identified to control populations of invasive taxa of Kalanchoe (e.g., [19,24,95,96]). In Ecuador, however, invasive taxa of Kalanchoe have been considered as a management priority (and, thus controlled) only in the Galapagos Islands (e.g., [81]).…”

3.7. Curculionidae Latreille, 1802

“…as a pest on Cinnamomum (Lauraceae) (Manivannan et al 2010). Some species bore in shoots and stems as larvae, such as the shoot weevil A. affaber (Aurivillius) on cotton (Thippeswamy et al 1994) and bhindi (Ablemoschus esculantus) and A. ludificator (Faust) in the green shoots of Buddleia madagascariensis, Gmelina arborea, and Tectonia grandis (in the last boring from the green shoot into the pith of the woody stem) (Beeson 1941); other stem borers include A. westermanni (Boheman) on Salix (although adults feed on potato in India) and A. sedi (Marshall), which is a biocontrol agent of Bryophyllum delagoense (Witt et al 2004). Some species bore in shoots and stems as larvae, such as the shoot weevil A. affaber (Aurivillius) on cotton (Thippeswamy et al 1994) and bhindi (Ablemoschus esculantus) and A. ludificator (Faust) in the green shoots of Buddleia madagascariensis, Gmelina arborea, and Tectonia grandis (in the last boring from the green shoot into the pith of the woody stem) (Beeson 1941); other stem borers include A. westermanni (Boheman) on Salix (although adults feed on potato in India) and A. sedi (Marshall), which is a biocontrol agent of Bryophyllum delagoense (Witt et al 2004).…”