Insecticide Use and the Ecology of Invasive Liriomyza Leafminer Management

Reitz, Stuart R.; Gao, Yulin; Lei, Zhongren

doi:10.5772/53874

Cited by 11 publications

(17 citation statements)

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“…The copyright holder for this preprint this version posted January 6, 2022. ; https://doi.org/10.1101/2022.01.06.475194 doi: bioRxiv preprint distance adult dispersal (Fenoglio et al, 2018). Liriomyza sativae are typical secondary pests with outbreaks occurring after the indiscriminate use of broadspectrum insecticides, which removes natural enemies as well as promoting the evolution of resistance (Mason et al, 1987;Oatman & Kennedy, 1976;Parrella & Keil, 1984;Reitz et al, 2013;Ridland et al, 2020). Once L. sativae invade new regions, it is difficult to eradicate it (Scheffer & Lewis, 2005), highlighting the importance of quarantine.…”

Section: Introductionmentioning

confidence: 99%

Genome-wide SNPs of vegetable leafminer, Liriomyza sativae: insights into the recent Australian invasion

Schmidt

Liang

et al. 2022

Preprint

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Liriomyza sativae, the vegetable leafminer, is a serious agricultural pest originally from the Americas which has now colonized all continents except Antarctica. In 2015, L. sativae arrived on the Australian mainland and established on the Cape York Peninsula in the northeast of the country. Here, we assessed genetic variation in L. sativae based on genome-wide single nucleotide polymorphisms (SNPs) generated by double-digest restriction-site associated DNA sequencing (ddRAD-seq) to uncover the potential origin(s) of this pest in Australia and contribute to reconstructing its global invasion history. Our principal component analyses (PCA) results suggested that Australian mainland populations were genetically close to populations from the Torres Strait and had connections to Bali and Papua New Guinea (PNG), whereas populations from Asia and Africa were more distantly related. Hawaii was genetically distinct from populations from Asia, Africa and Australia. Co-ancestry analyses pointed to signals of gene flow from the Torres Strait into the Australian mainland, while Indonesia/PNG were the likely sources of the initial invasion into the Torres Strait. Admixture analyses further revealed that L. sativae from the Torres Strait had genetic diversity originating from multiple sources, which has now spread to the Australian mainland. The L. sativae lineages from Asia/Africa appear closely related and may share co-ancestry. Isolation by distance (IBD) was found at a broad global scale, but not within small regions, suggesting human-mediated factors contribute to the local spread of this pest. Overall, our findings highlight the challenges in quarantine measures aimed at restricting the distribution of this global pest.

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Section: Introductionmentioning

confidence: 99%

Genome-wide SNPs of vegetable leafminer, Liriomyza sativae: insights into the recent Australian invasion

Schmidt

Liang

et al. 2022

Preprint

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“…Frequent insecticide applications have encouraged the resurgence of secondary pests such as the white mite Polyphagotarsonemus latus (Banks) and the bud midge Prodiplosis longifila (Gagne) in the central Peruvian coast (Cisneros & Mujica, 1999a;Kroschel et al, 2012;Mujica & Cisneros, 1997). It has been recognized that these new problems are associated with farmers' practices and the excessive use of broad-spectrum insecticides which reduce natural enemy populations in cropping systems, promote insecticide resistance, and augment the L. huidobrensis population density (Johansen, Tao, Le, & Nordhus, 2003;Murphy & LaSalle, 1999;Reitz, Gao, & Lei, 2013;Thang, 1999;Weintraub et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…After vegetative growth of potato, control of mining larvae might be necessary if natural control is not enough to avoid yield reductions (Mujica & Cisneros, 1997). The use of selective insecticides within conventional potato production systems showed to retain lower leafminer fly densities and effective natural enemy conservation (Koss, Jensen, Schreiber, Pike, & Snyder, 2005;Mujica et al, 2001;Reitz et al, 2013). The efficacy of selective versus broad-spectrum insecticides for controlling the leafminer fly, L. huidobrensis, and its nontarget effects on the abundance and diversity of natural enemies have been widely studied (Mujica et al, 2001;Sotomayor, 1998;Weintraub, 2001;Weintraub & Mujica, 2006;Weintraub et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Cañete Valley, Peru

Mujica

Kroschel

2018

Food and Energy Security

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Integrated pest management (IPM) versus farmers’ pest management practices were evaluated in potato (Solanum tuberosum L.) in the central coast of Peru. IPM technologies consisted of seed treatment, insect pest, and disease scouting using action thresholds for decision making to apply pesticides, and the use of trapping devices and selective insecticides versus chemical control by potato farmers. An ecological, environmental, and economic analysis of both approaches was carried out by using biodiversity indices, environmental impact indicators, and partial budget analysis. The leafminer fly Liriomyza huidobrensis (Blanchard) and the bud midge Prodiplosis longifila (Gagne) were the most important pests during the cropping season. Larval infestation of both pests and leafminer foliar damage were less in IPM plots. Almost twice as many pesticide (insecticide and fungicide) applications per season were carried out on farmers’ practices plots with 16.7 sprayings compared to 9.7 sprayings in IPM plots. The total quantity of pesticides used per season was higher under farmers’ practices (4,614.3 g a.i./ha) than in IPM (2,042.6 g a.i./ha) plots. Likewise, farmers applied five times more insecticides (3,620.3 g a.i./ha) than IPM (722.55 g a.i./ha). Methamidophos and chlorpyrifos accounted for 65% of the environmental impact (EI) value of 137/ha in farmers’ fields. IPM strategies reduced the EI to 42.4/ha, which represents a reduction of 69.2%. Further, IPM achieved 35% higher marketable potato yield than farmers’ practices. Partial budget analysis showed a higher net profit in all IPM plots, with an average increase of US$1,410/ha. The field trials demonstrated the environmental and economic viability of IPM for potato in the central coast of Peru. However, while there are effective integrated components for leafminer fly management, there is a clear need to develop and integrate more sustainable and ecological pest management strategies for other economically important pests such as the bud midge.

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“…As leafminer will continue to be important pest of high value crops, insecticides will continue to be an important component for leafminer management, therefore it is imperative to continue to refine the use of insecticides that target leafminer. Improving application, timing and methods will help to conserve insecticides susceptibility and maintain efficacy by mitigating the evolution of resistance (Reitz et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF FABA BEAN – CEREALS INTERCROPPING AND NITROGEN FERTILIZATION ON THE INFESTATION BY THE LEAFMINER Liriomyza trifolii (BURGESS) ON FABA BEAN PLANTS.

Shawer

Taha

Emeran

2016

Journal of Plant Protection and Pathology

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Field experiments were conducted at Kafr El-Sheikh, Egypt over two winter seasons, 2006/07 and 2007/08, to evaluate the effect of faba bean-cereals intercropping and nitrogen fertilization on leafminer, Liriomyza trifolii (Burgess) infestation on two cultivars of faba bean Vicia faba. Level of leafminer infestation increased gradually from mid-December reaching maximum levels by the end of March. Larvae population increased gradually reaching a maximum level by mid-February, and then gradually decreased and completely disappeared by the end of March. Triticale intercropping with Faba bean, cv. Giza Blancka, and nitrogen fertilization (50 kg /Feddan) resulted in the lowest susceptibility to leafminer infestation during the first and second seasons. Wheat intercropping with faba bean, cv. Giza Blancka was the best treatment to reduce the population of leafminer larvae, while barley intercropping with faba bean, cv. Yossif El-Sediek resulted in the highest leafminer population.

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Insecticide Use and the Ecology of Invasive Liriomyza Leafminer Management

Cited by 11 publications

References 99 publications

Genome-wide SNPs of vegetable leafminer, Liriomyza sativae: insights into the recent Australian invasion

Genome-wide SNPs of vegetable leafminer, Liriomyza sativae: insights into the recent Australian invasion

Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Cañete Valley, Peru

EFFECT OF FABA BEAN – CEREALS INTERCROPPING AND NITROGEN FERTILIZATION ON THE INFESTATION BY THE LEAFMINER Liriomyza trifolii (BURGESS) ON FABA BEAN PLANTS.

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