Assessing the potential of the rust fungus Puccinia spegazzinii as a classical biological control agent for the invasive weed Mikania micrantha in Papua New Guinea

Day, Michael; Kawi, A.; Ellison, C. A.

doi:10.1016/j.biocontrol.2013.08.007

Cited by 18 publications

(13 citation statements)

References 4 publications

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“…Besides, the Peruvian pathotype showed a higher systemic spread than the Trinidadian pathotype. Substantial variation in aggressiveness of different P. spegazzinii isolates was also observed by Day et al (2013a) in M. micrantha accessions from Fiji and Papua New Guinea (PNG).…”

Section: Resultsmentioning

confidence: 94%

Puccinia spegazzinii (Pucciniales: Pucciniaceae) from Peru for biological control of Mikania micrantha (Asteraceae: Eupatorieae) in India: evaluating susceptibility of host populations and confirming host specificity

Kumar

Dev

Joshi

2018

Egypt J Biol Pest Control

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Mikania micrantha (Asteraceae: Eupatorieae), widely called mile-a-minute, has been a persistent problem to forestry, plantations and biodiversity conservation in southwestern and northeastern India, as well as in Andaman and Nicobar islands. To supplement the previously imported Trinidad-originating Puccinia spegazzinii (Pucciniales: Pucciniaceae), a different pathotype (IMI 393076) was imported from Peru, South America, after obtaining the import permit from the Plant Protection Advisor to the Government of India. The Peruvian pathotype was held in the National Containment-cum-Quarantine Facility for Transgenic Planting Material at ICAR-National Bureau of Plant Genetic Resources in New Delhi as a quarantine organism for pre-release evaluation. Screening of M. micrantha populations from Andaman and Nicobar islands (12), Assam (15) and Kerala (3) indicated their complete susceptibility to the Peruvian pathotype. In the host-specificity tests, the rust could not infect any of the 25 plant species in ten tribes within Asteraceae, which confirmed its safety to non-target plant species. Further, none of the 31 sunflower cultivars/ accessions screened were infected.

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Section: Resultsmentioning

confidence: 94%

Puccinia spegazzinii (Pucciniales: Pucciniaceae) from Peru for biological control of Mikania micrantha (Asteraceae: Eupatorieae) in India: evaluating susceptibility of host populations and confirming host specificity

Kumar

Dev

Joshi

2018

Egypt J Biol Pest Control

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“…Consequently, a biological control project targeting M. micrantha and involving P. spegazzinii was initiated. Since P. spegazzinii had been previously tested against over 170 plant species, only a relatively few species needed to be tested, thus making its introduction very cost effective and resulting in its release in PNG and Fiji (Day et al 2013b), prior to its introduction into Vanuatu.…”

Section: Discussionmentioning

confidence: 99%

“…Insect biological control agents for the terrestrial weeds were reared on potted plants of their respective hosts in organzamesh screened, aluminium-framed cages (90 × 45 × 45 high cm), using methods similar to those used by the research organisation from which the particular biological control agent was imported. The rust Puccinia spegazzinii De Toni (Pucciniales: Pucciniaceae), an agent introduced to control M. micrantha, was cultured in a similar way to that outlined in Day et al (2013b). Rearing and culturing methods were adapted to local conditions but maintained the general essence of maintaining an adequate supply of healthy pest-free plants, keeping insect generations separate and maintaining good records.…”

Section: Methodsmentioning

confidence: 99%

The status of weed biological control in Vanuatu

Day¹,

Bule²

2016

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Biological control of weeds in Vanuatu began in 1935, with the introduction of the tingid Teleonemia scrupulosa to control Lantana camara. To date, nine biological control agents have been intentionally introduced to control eight weed species. Seven of these agents have established on their respective hosts while an eighth, Zygogramma bicolorata, an agent for Parthenium hysterophorus has only recently been released and establishment is unlikely. The fate of a ninth agent, Heteropsylla spinulosa, released for the control of Mimosa diplotricha is unclear. Six other biological control agents, including Epiblema strenuana which was first detected in 2014 on P. hysterophorus on Efate have spread into the country unintentionally. Control of the target weeds range from inadequate to very good. By far the most successful agent has been Calligrapha pantherina which was introduced to control Sida acuta and Sida rhombifolia. The beetle was released on 14 islands and managed to spread to at least another 10 islands where it has effectively controlled both Sida spp. Control of the two water weeds, Eichhornia crassipes by Neochetina bruchi and N. eichhorniae and Pistia stratiotes by Neohydronomus affinis, has also been fairly good in most areas. Two agents, T. scrupulosa and Uroplata girardi, were released on L. camara, and four other agents have been found on the weed, but L. camara is still not under adequate control. The rust Puccinia spegazzinii was first released on Mikania micrantha in 2012 and successfully established. Anecdotal evidence suggests that it is having an impact on M. micrantha, but detailed monitoring is required to determine its overall impact. Future prospects for weed biological control in Vanuatu are positive, with the expected greater spread of recently released agents and the introduction of new agents for P. hysterophorus, L. camara, Dolichandra unguis-cati and Spathodea campanulata.

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“…This was despite the agent being tested against 170 species on behalf of India and China prior to its introduction into those countries (Day et al 2013b). Conversely, both Neochetina spp.…”

Section: Microlarinus Lareyniimentioning

confidence: 99%

Biological control of weeds in the 22 Pacific island countries and territories: current status and future prospects

Day¹,

Winston²

2016

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Biological control of introduced weeds in the 22 Pacific island countries and territories (PICTs) began in 1911, with the lantana seed-feeding fly introduced into Fiji and New Caledonia from Hawaii. To date, a total of 62 agents have been deliberately introduced into the PICTs to control 21 weed species in 17 countries. A further two agents have spread naturally into the region. The general impact of the 36 biocontrol agents now established in the PICTs ranges from none to complete control of their target weed(s). Fiji has been most active in weed biocontrol, releasing 30 agents against 11 weed species. Papua New Guinea, Guam, and the Federated States of Micronesia have also been very active in weed biocontrol. For some weeds such as Lantana camara, agents have been released widely, and can now be found in 15 of the 21 PICTs in which the weed occurs. However, agents for other commonly found weeds, such as Sida acuta, have been released in only a few countries in which the weed is present. There are many safe and effective biocontrol agents already in the Pacific that could be utilised more widely, and highly effective agents that have been released elsewhere in the world that could be introduced following some additional host specificity testing. This paper discusses the current status of biological control efforts against introduced weeds in the 22 PICTs and reviews options that could be considered by countries wishing to initiate weed biological control programmes.

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Assessing the potential of the rust fungus Puccinia spegazzinii as a classical biological control agent for the invasive weed Mikania micrantha in Papua New Guinea

Cited by 18 publications

References 4 publications

Puccinia spegazzinii (Pucciniales: Pucciniaceae) from Peru for biological control of Mikania micrantha (Asteraceae: Eupatorieae) in India: evaluating susceptibility of host populations and confirming host specificity

Puccinia spegazzinii (Pucciniales: Pucciniaceae) from Peru for biological control of Mikania micrantha (Asteraceae: Eupatorieae) in India: evaluating susceptibility of host populations and confirming host specificity

The status of weed biological control in Vanuatu

Biological control of weeds in the 22 Pacific island countries and territories: current status and future prospects

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