Host range tests cast doubt on the suitability of Epiblema strenuana as a biological control agent for Parthenium hysterophorus in Africa

McConnachie, Andrew

doi:10.1007/s10526-015-9675-2

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…The absence of closely related native and/or economically important species in one country compared to another resulted in the release of several biological control agents that have been judged as not sufficiently specific in countries where these closely related species are present. For example, Epiblema strenuana (Walker) has been introduced as a biological control agent for Parthenium hysterophorus L. and Ambrosia artemisiifolia L. in Australia and China, but not in India and South Africa because it develops on Guizotia abyssinica (L.f.) Cass, an oilseed crop cultivated in Ethiopia and India (McConnachie, ). Similarly, two biological control agents ( Oxyptilus pilosellae Zeller and Macrolabis pilosellae (Billie)) have been released against invasive hawkweeds ( Pilosella spp.)…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Cyphocleonus trisulcatus (Coleoptera: Curculionidae) as a potential biological control agent for Leucanthemum vulgare in North America

Stutz

Hinz

Schaffner

2019

J Applied Entomology

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Leucanthemum vulgare, a perennial forb native to Eurasia, has become invasive in several other parts of the world. Since there is a lack of methods suitable for sustainable management of this plant across invaded landscapes, a biological control project has been initiated in North America and Australia. We evaluated the potential of the root‐feeding weevil Cyphocleonus trisulcatus as a biological control agent for L. vulgare in North America by investigating its impact on L. vulgare and studying its larval host range under no‐choice, multiple‐choice cage and open‐field conditions. Our impact experiment revealed that larval feeding by C. trisulcatus can severely damage and even kill plants. No‐choice tests conducted with 41 non‐target species showed that C. trisulcatus can develop on five closely related species. In a multiple‐choice cage test established with three of these species, the medicinal plant Matricaria chamomilla and the native North American M. occidentalis were also attacked, but to a lower degree than L. vulgare. An open‐field test conducted with four varieties of the ornamental Shasta daisy (Leucanthemum × superbum and L. × maximum) revealed similar attack on Shasta daisy as on L. vulgare. Due to the popularity of Shasta daisies, we suggest that C. trisulcatus, despite its potential to suppress L. vulgare populations, is not a suitable biological control agent for North America. However, C. trisulcatus may still be a potential biological control agent for L. vulgare in regions where Shasta daisy is less popular, such as Australia. Further host‐range tests with species native to Australia as well as with additional species important for the horticultural industry in Australia are currently under way.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Cyphocleonus trisulcatus (Coleoptera: Curculionidae) as a potential biological control agent for Leucanthemum vulgare in North America

Stutz

Hinz

Schaffner

2019

J Applied Entomology

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“…Second, when given a choice for oviposition, H. basalis significantly preferred A. philoxeroides and the proportion of eggs laid on A. tricolor was very low. Although monocultures approach the no-choice situation and alter the population dynamics of insects introduced for biological control (McConnachie 2015), H. basalis would possibly always have A. philoxeroides available under field conditions. The population of A. philoxeroides and other closely related weed species, such as A. retroflexus , far exceed the populations of A. tricolor .…”

Section: Discussionmentioning

confidence: 99%

Host Range of Herpetogramma basalis (Lepidoptera: Crambidae), a Biological Control Agent for the Invasive Weed Alternanthera philoxeroides (Centrospermae: Amaranthaceae) in China

Shihai

Cong

et al. 2019

Journal of Insect Science

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Alternanthera philoxeroides (Mart.) Griseb. is an invasive herbaceous amphibious weed species in China. A pyralid moth Herpetogramma basalis (Walker) was discovered feeding on A. philoxeroides through field surveys and may be a potentially useful biocontrol agent. To determine the host range of H. basalis and evaluate its potential to control A. philoxeroides, no-choice and multiple-choice tests were conducted. Herpetogramma basalis fed on target weeds and 29 nontarget plant species. In addition to the target weed A. philoxeroides, H. basalis developed to adult on eight other nontarget species. Herpetogramma basalis survived to adulthood successfully on A. philoxeroides and less successfully on several other Amaranthaceae species. In multiple-choice studies, H. basalis showed a strong oviposition preference for A. philoxeroides over Amaranthus tricolor L. (Centrospermae: Amaranthaceae). Amaranthus tricolor was the only crop plant that supported the complete development of H. basalis. We cautiously recommend H. basalis for the biological control of A. philoxeroides in China.

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Systematic cultivar selection for weed biological control risk assessment

et al. 2022

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Host range tests cast doubt on the suitability of Epiblema strenuana as a biological control agent for Parthenium hysterophorus in Africa

Cited by 6 publications

References 21 publications

Evaluation of Cyphocleonus trisulcatus (Coleoptera: Curculionidae) as a potential biological control agent for Leucanthemum vulgare in North America

Evaluation of Cyphocleonus trisulcatus (Coleoptera: Curculionidae) as a potential biological control agent for Leucanthemum vulgare in North America

Host Range of Herpetogramma basalis (Lepidoptera: Crambidae), a Biological Control Agent for the Invasive Weed Alternanthera philoxeroides (Centrospermae: Amaranthaceae) in China

Systematic cultivar selection for weed biological control risk assessment

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