The response to drought-stressed host plants varies among herbivorous mite populations from a climate gradient

Migeon, Alain; Auger, Philippe; Fossati, Odile; Hufbauer, Ruth A.; Miranda, M. P. de; Zriki, Ghais; Navajas, María

doi:10.1101/2021.10.21.465244

Cited by 3 publications

(2 citation statements)

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“…Other mite species, including Tetranychus evansi Baker and Pritchard and Aculops lycopersici (Massee) (Acari: Eriophyidae), had increased population growth and caused more damage to water-stressed plants ( Ximénez-Embún et al 2016 , 2017 ). Similarly, twospotted spider mites developed faster, dispersed from leaves less often, and laid more eggs on water-stressed plants ( Migeon et al 2023 ). Drought-susceptible corn hybrids supported greater Banks grass mite ( Oligonychus pratensis [Banks] [Acari: Tetranychidae]) populations under water-stress irrigation compared to optimal irrigation ( Ruckert et al 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Bermudagrass mite (Acari: Eriophyidae) infestation worsens in response to increasing nitrogen fertility and decreasing irrigation volume but not mowing height

Brown,

Chong

2023

Journal of Economic Entomology

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Severe bermudagrass mite (Aceria cynodoniensis Sayed) infestation stunts turfgrass growth and reduces the aesthetic and recreational value of managed bermudagrass. Management practices, such as fertilization, mowing, and irrigation, may impact bermudagrass mite infestation and damage, but empirical evidence is lacking. Two 20 wk experiments were conducted with potted bermudagrass in a greenhouse or nursery to evaluate the effect of varying nitrogen rates (0, 24.5, or 49 kg N/ha), mowing heights (1.3, 2.5, 3.8, or 5 cm), and irrigation rates (60%, 100%, or 140% evapotranspiration [ET] rate) on the densities of witch’s brooms (i.e., stunted and deformed terminals symptomatic of infestation) and bermudagrass mites. Increasing nitrogen fertility from 0 to 49 kg N/ha increased witch’s broom and bermudagrass mite densities by 292% and 339%, respectively. Bermudagrass fertilized with nitrogen maintained higher turf quality than unfertilized grass despite greater mite damage. Decreasing irrigation from 140% to 60% of the ET rate also increased witch’s broom densities by 124%. Mowing height did not consistently affect witch’s broom or mite densities. Witch’s broom and mite densities were positively correlated and followed a general trend with greater densities in April–August and a decline in densities in August–October. These findings suggest that nitrogen fertilization and water stress influence bermudagrass mite damage. Thus, limiting nitrogen fertilization to a level necessary to maintain turfgrass health and quality (0.5 kg N/ha) and minimizing turfgrass water stress can complement current chemical control strategies as part of an integrated pest management program.

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Section: Discussionmentioning

confidence: 99%

Bermudagrass mite (Acari: Eriophyidae) infestation worsens in response to increasing nitrogen fertility and decreasing irrigation volume but not mowing height

Brown,

Chong

2023

Journal of Economic Entomology

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“…Spider mites are widely distributed pests, whose abundance are enhanced by hot and dry environmental conditions (Hernández-Rivera et al, 2022;Holtzer et al, 1988;Migeon et al, 2023). The management of spider mites is further complicated by rapid evolution of pesticide resistance.…”

Section: Discussionmentioning

confidence: 99%

The effects of water‐stress, temperature, and plant traits on the outbreak potential of a specialist and generalist spider mite species (Acari: Tetranychidae)

Barnes,

Wickwar,

Yost

et al. 2023

J Applied Entomology

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The host‐generalist two‐spotted spider mite [Tetranychus urticae (Acari: Tetranychidae); TSM] and host‐specialist Banks grass mite [Oligonychus pratensis (Acari: Tetranychidae); BGM] are common pests of corn (Zea mays L.) in the arid western United States. Climate warming and decreased precipitation may promote conditions favoured by these spider mites. However, rapid evolution of spider mite resistance to commercially available acaricides is driving the need for alternative solutions for managing outbreaks. Planting of drought‐tolerant corn hybrids has been proposed to be a dual‐purpose strategy for mitigating water deficits for irrigation and reducing leaf conditions favourable for BGM outbreaks. However, understanding of the mechanisms responsible for reducing the BGM in the field is lacking and determining whether outbreaks of the TSM can also be averted using drought‐tolerant corn is a pressing concern. We conducted a 2‐year field study testing a drought‐tolerant corn hybrid and an analogous drought‐susceptible hybrid under water‐stress, with artificially infested spider mite populations. Drought‐tolerant corn had larger stem diameter, more massive cobs, and greater leaf water mass compared to the drought‐susceptible corn under water stress. We also found that the BGM populations were reduced on drought‐tolerant plants under water‐stress, as expected, but we found an opposite trend in the TSM. Lastly, water‐stressed leaves were warmer, transpired less, and had higher carbon concentration, which contributed to larger investment in eggs and growth in the BGM. We anticipate that further evaluation of irrigation and crop drought‐tolerance in management of agriculture systems for multiple pest species will be increasingly impactful in arid regions.

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Genetic analysis of the tomato russet mite provides evidence of oligophagy and a widespread pestiferous haplotype

et al. 2023

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Worldwide, the tomato russet mite (TRM), Aculops lycopersici (Eriophyidae), is a key pest on grown tomatoes besides infesting other cultivated and wild Solanaceae; however, information on TRM basics aspects supporting effective control strategies still lacking, mainly regarding its taxonomic unit and genetic diversity and structure. As A. lycopersici is reported on different species and genera of host plants maybe, populations associated with different host plants constitute specialized cryptic species, such as showed for other eriophyids previously considered generalists. The main aims of this study were to i) con rm the TRM taxonomic unity of populations from different host plants and localities as well as the species oligophagy; ii) to advance the understanding on TRM host relationship and invasion history. For this purpose it was evaluated the genetic variability and structure of populations from different host plants along crucial areas of occurrence, including that potentially of origin and the invaded ones, based on DNA sequences of mitochondrial (Cytochrome c oxidase subunit I) and nuclear (Internal Transcribed spacer, D2 28S) genomic regions. Specimens from South America (Brazil) and Europe (France, Italy, Poland, The Netherlands) were collected from tomato and other solanaceous species from the Solanum and Physalis genera. Final TRM datasets were composed by 101, 82 and 50 sequences from the COI (672 bp), ITS (553 bp) and D2 (605 bp) regions, respectively. Distributions and frequencies of haplotypes (COI) and sequence variants (D2 and ITS1) were inferred; pairwise genetic distances, and phylogenetic analysis were performed, including Bayesian Inference (BI) combined analysis. Genetic divergences for mitochondrial and nuclear genomic regions from TRM associated with different host plants were even lower than those observed in other eriophyid taxa con rming co-speci c of TRM populations and oligophagy of this eriophyid mite. Four haplotypes (cH) were identi ed from the COI sequences being cH1 the most frequent, representing 90% of all sequences occurring in all host plants studied (Brazil, France, The Netherlands); the other haplotypes were present exclusively in Brazilian populations. Six variants (I) were identi ed from the ITS sequences: I-1 was the most frequent (76.5% of all sequences), spread in all countries and associated with all host plants, except for S. nigrum. Just one D2 sequence variant was found in all studied countries. The genetic homogeneity among populations highlights occurrence of a highly invasive and not host-speci c haplotype. These results also do not corroborate the hypothesis that differential symptomatology/damage intensity by tomato varieties and solanaceous host plants could be due to the genetic diversity of the associated mite populations. Even this contribution was not primarily aimed to trace TRM invasion routes, genetic evidence, jointly with the main host plant history, corroborate the hypothesis of a TRM South American origin. Host plant táxon LocalityGeographical coo...

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The response to drought-stressed host plants varies among herbivorous mite populations from a climate gradient

Cited by 3 publications

References 63 publications

Bermudagrass mite (Acari: Eriophyidae) infestation worsens in response to increasing nitrogen fertility and decreasing irrigation volume but not mowing height

Bermudagrass mite (Acari: Eriophyidae) infestation worsens in response to increasing nitrogen fertility and decreasing irrigation volume but not mowing height

The effects of water‐stress, temperature, and plant traits on the outbreak potential of a specialist and generalist spider mite species (Acari: Tetranychidae)

Genetic analysis of the tomato russet mite provides evidence of oligophagy and a widespread pestiferous haplotype

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