Population Suppression in Support of the Sterile Insect Technique

Mangan, Robert L.

doi:10.1007/1-4020-4051-2_15

Cited by 8 publications

(9 citation statements)

References 34 publications

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“…). In fact, it virtually always needs to be supported by an efficient population suppression technique to reduce the pest to the level that the released males have a numerical dominance over the wild ones (Mangan ). However, some of the suppression techniques such as the use of insecticides or chemical attractants may also interfere with the SIT and thus reduce its efficiency.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, some of these supplementary control activities, especially those based on chemicals sprayed from planes, may face an opposition from the public (Dyck et al . ; Mangan ). The use of male‐killing bacteria as biocontrol agents may avoid any of these practical and technical inconveniences.…”

Section: Discussionmentioning

confidence: 99%

“…). Chemical insecticides, pheromone‐based attractants, predators or parasitoids, sterilized conspecifics, or infectious agents have been used to mitigate negative impacts of insect invasions (Mangan ; Suckling et al . ).…”

Section: Introductionmentioning

confidence: 99%

“…The SIT has been successfully used to suppress or eradicate many pest populations (Krafsur ; Dyck, Hendrichs & Robinson ; Shelly & McInnis ). Since matings between sterilized and wild individuals result in reduced progeny, and since the SIT is most efficient in low‐density populations (lower release rates of sterilized males are then needed for females to have a high chance of mating with these males), any technique with a potential to reduce the amount of wild males may enhance the SIT efficiency (Klassen ; Mangan ; Alphey et al . ).…”

Section: Introductionmentioning

confidence: 99%

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Male‐killing bacteria as agents of insect pest control

Berec

Maxin

Bernhauerová

2016

Journal of Applied Ecology

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Summary Continual effort is needed to reduce the impact of exotic species in the context of increased globalization. Any innovation in this respect would be an asset. We assess the potential of combining two pest control techniques: the well‐established sterile insect technique (SIT) and a novel male‐killing technique (MKT), which comprises inoculation of a pest population with bacteria that kill the infected male embryos. Population models are developed to assess the efficiency of using the MKT for insect pest control, either alone or together with the SIT. We seek for conditions under which the MKT weakens requirements on the SIT. Regarding the SIT, we consider both non‐heritable and inherited sterility. In both cases, the MKT and SIT benefit one another. The MKT may prevent the SIT from failing when not enough sterilized males are released due to high production costs and/or uncertainty on their mating ability following a high irradiation dose. Conversely, with already established SIT, pest eradication can be achieved after introduction of male‐killing bacteria with lower vertical transmission efficiency than if the MKT was applied alone. For tephritid fruit flies with non‐heritable sterility, maximal impact of the SIT is achieved when the released males are fully sterile. Conversely, for lepidopterans with inherited sterility, maximal impact of the SIT is achieved for intermediate irradiation doses. In both cases, increasing vertical transmission efficiency of male‐killing bacteria benefits the SIT; high enough vertical transmission efficiency allows for pest eradication where the SIT is absent or induces only pest suppression when used alone. Synthesis and applications. While both techniques can suppress or eliminate the pest on their own, combined application of the male‐killing technique and the sterile insect technique substantially increases pest control efficiency. If male‐killing bacteria are already established in the pest, any assessment of the sterile insect technique needs to account for their presence; otherwise, management recommendations could be exaggerated and unnecessarily costly.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Male‐killing bacteria as agents of insect pest control

Berec

Maxin

Bernhauerová

2016

Journal of Applied Ecology

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“…SIT was less effective in regions with higher C. capitata population density (mean FTD of >1). SIT is most effective at low pest densities . At higher pest densities, other methods such as chemical control, bait sprays and cultural methods would be more appropriate …”

Section: Discussionmentioning

confidence: 99%