Expanding Geographical Range of Cactoblastis Cactorum (Lepidoptera: Pyralidae) in North America

Hight, Stephen D.; Carpenter, James E.; Bloem, Kenneth A.; Bloem, Stephanie; Pemberton, Robert W.; Stiling, Peter

doi:10.1653/0015-4040(2002)085[0527:egrocc]2.0.co;2

Cited by 62 publications

(56 citation statements)

References 2 publications

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“…It was unexpectedly discovered in Florida in 1989 (Habeck and Bennett 1990), and it has since spread north and west along the Gulf Coast, attacking native cacti (Johnson andStiling 1998, Hight et al 2002). With a wide host range within the genus Opuntia, including O. imbricata (Zimmerman et al 2004), and suitable host plants distributed throughout the Gulf states and Texas, Cactoblastis is expected to invade Opuntia populations in the southwest United States and Mexico (Mahr 2001, Hight et al 2002, Zimmerman et al 2004, Simonson et al 2005.…”

Section: Inference For Prediction Of Impacts By An Invasive Cactus-fementioning

confidence: 99%

Impacts of insect herbivory on cactus population dynamics: experimental demography across an environmental gradient

Miller

Louda

Rose

et al. 2009

Ecological Monographs

110

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Miller, Tom E. X.; Louda, Svata M.; Rose, Karen A.; and Eckberg, James O., "Impacts of insect herbivory on cactus population dynamics: experimental demography across an environmental gradient" (2009 Abstract. Understanding the role of consumers in plant population dynamics is important, both conceptually and practically. Yet, while the negative effects of herbivory on plant performance have been well documented, we know much less about how individuallevel damage translates to impacts on population growth or whether spatial variation in herbivory affects patterns of plant distribution. We studied the role of insect herbivory in the dynamics and distribution of the tree cholla cactus (Opuntia imbricata), a long-lived perennial plant, across an elevational gradient in central New Mexico, USA, from low-elevation grassland (1670 m) to a grassland-mountain transition zone (1720 m) to the rocky slopes of the Los Pinos Mountains (1790 m). Tree cholla density increased significantly with elevation, while abundance of and damage by a suite of native, cactus-feeding insects decreased. We combined field experiments and demographic models to test the hypothesis that systematic spatial variation in chronic insect herbivory limits the tree cholla distribution to a subset of suitable habitat across the gradient. Our results support this hypothesis.We found that key demographic functions (survival, growth, fecundity) and the responses of these functions to experimental reductions in insect herbivory varied across the gradient. The effects of insect exclusion on plant growth and seed production were strongest in the lowelevation grassland and decreased in magnitude with increasing elevation. We used the experimental data to parameterize integral projection models (IPM), which predict the asymptotic rate of population increase (k). The modeling results showed that insect herbivory depressed k and that the magnitude of this effect was context-dependent. The effect of insect herbivory on population growth was strongest at low elevation (Dk low ¼ 0.095), intermediate at mid elevation (Dk mid ¼ 0.046), and weakest at high elevation (Dk high ¼ À0.0089). The total effect of insects on k was due to a combination of reductions in growth and in fecundity and their combination; the relative contribution of each of these effects varied spatially. Our results, generated by experimental demography across a heterogeneous landscape, provide new insights into the role of native consumers in the population dynamics and distribution of abundance of long-lived native plants.

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Section: Inference For Prediction Of Impacts By An Invasive Cactus-fementioning

confidence: 99%

Impacts of insect herbivory on cactus population dynamics: experimental demography across an environmental gradient

Miller

Louda

Rose

et al. 2009

Ecological Monographs

110

View full text Add to dashboard Cite

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“…The rapid spread of this invasive moth (Hight et al 2002) is not only a threat to rare endemic cacti (Rebman and Pinkava 2001, Stiling and Moon 2001, Hight et al 2002, native desert ecosystems (Mahr 2001), and the ornamental prickly pear industry in the United States (Irish 2001), but it could have catastrophic effects on the Opuntia industry in Mexico, where prickly pear cacti are being used extensively as human food and livestock fodder (Zimmermann et al 2004).…”

mentioning

confidence: 99%

Diel Flight Pattern and Flight Performance of Cactoblastis cactorum (Lepidoptera: Pyralidae) Measured on a Flight Mill: Influence of Age, Gender, Mating Status, and Body Size

Sarvary

Bloem

Bloem³

et al. 2008

Journal of Economic Entomology

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Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae) is an invasive herbivore that poses a serious risk to Opuntia cacti in North America. Knowledge of the ßight behavior of the cactus moth is crucial for a better understanding of natural dispersal, and for both monitoring and control. We used computer-linked ßight mills to investigate diel ßight activity and ßight performance in relation to gender, age, mating status, and body size. Maximal ßight activity for both mated and unmated moths occurred during twilight, whereas ßight activity was low during photophase. The total distance ßown and the number of initiated ßights within a diel cycle were higher in both unmated and mated females than in males, but the longest single ßight was similar in both genders. These Þndings suggest that pheromone trap captures of males likely indicate the simultaneous presence of females and that mated females might even be in areas where males are not detected yet. Flight performance heterogeneity was large, with a small portion of the population (both males and females) performing long unbroken ßights, whereas the majority made short ßights. Females had higher pupal and adult body size and shorter longevity than males. A few individuals, particularly young mated females, ßying long distances may be important for active spread of a population and the colonization of new habitats. Implications of this study in the control of the cactus moth by using the sterile insect technique are discussed.

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“…The European grapevine moth, Lobesia botrana Denis & Schiffermüller (Lepidoptera: Torticidae) has been detected in the USA and Chile (Gilligan et al 2011) and affects grapevine production in many Mediterranean countries. The light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Torticidae), a polyphagous horticultural leafroller pest has recently spread in California (Suckling et al 2014a), while the cactus moth, Cactoblastis cactorum Berg (Lepidoptera: Pyralidae) is spreading in the southern USA towards Mexico (Hight et al 2002), where it threatens endemic and valued cacti (Bloem et al 2007a). The spotted sugarcane borer, Chilo sacchariphagus Bojer (Lepidoptera: Crambidae) is locally spreading along the eastern coast of Africa in Mozambique, and is present in the Indian Ocean islands of La Réunion, Madagascar and Mauritius (Conlong and Way 2015).…”

Section: Introductionmentioning

confidence: 99%

Global range expansion of pest Lepidoptera requires socially acceptable solutions

et al. 2016

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Caterpillars of key moth pests can cause significant losses in cropping systems worldwide, and globalization is spreading such pests. Failure to control some species can jeopardise the economics of food production. A Global Eradication and Response Database (http://b3.net.nz/gerda) was reviewed on known government-level incursion response programs specific to invasive Lepidoptera. Geographic range expansion of Lepidoptera was evident from 144 incursion response programs targeting 28 species in 10 families. The countries involved in responses to Lepidoptera were USA (104), Australia (8), Canada (7), New Zealand (6), Italy (3), Mexico (2), with the remainder with one programme each (Brazil, Czech Republic, France, Hungary, and Spain). Most programs have been undertaken since the 1990’s. Control options exist for the long-term management of Lepidoptera, but most have issues of cost, efficacy or non-target impacts that reduce their acceptance. Pheromone-based technologies are increasingly available and are generally highly compatible with other tactics. The development of tactics for new targets is a major undertaking, although previous programs can be invaluable. New and improved socially-acceptable technologies are needed to counteract range expansion in Lepidoptera, and usually need to be used in combinations to achieve eradication. The sterile insect technique, which involves mass-rearing and release of sterile insects to reduce wild populations of the pest, has been used successfully against a number of lepidopteran species. Several sterile moth programs are under development. New technologies must have a social license to operate in urban areas, where new incursions are frequently detected. This factor is likely to reduce tactical flexibility and increase the complexity of insect eradication.

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Expanding Geographical Range of Cactoblastis Cactorum (Lepidoptera: Pyralidae) in North America

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 62 publications

References 2 publications

Impacts of insect herbivory on cactus population dynamics: experimental demography across an environmental gradient

Impacts of insect herbivory on cactus population dynamics: experimental demography across an environmental gradient

Diel Flight Pattern and Flight Performance of Cactoblastis cactorum (Lepidoptera: Pyralidae) Measured on a Flight Mill: Influence of Age, Gender, Mating Status, and Body Size

Global range expansion of pest Lepidoptera requires socially acceptable solutions

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