Abstract
The Algerian province of Biskra accounts for most of the date production in the country, especially high-quality dates for export. This crop is threatened by many pests, but the presence and effects of thrips are unknown. A survey of date palm thrips was conducted in Biskra province, located in an arid zone of Algeria, in four palm groves (two eastern, two western).Ten trees were selected randomly in each grove. Thrips were collected from four fronds (leaves) on each tree, one frond from each of the four cardinal directions, by shaking them over a white plate. Thrips also were collected from inflorescence samples by shaking one floral branchlet from an inflorescence at each cardinal direction over a white plate. Dislodged thrips were gathered into vials containing 60% ethanol and later mounted on slides and identified to the species level. Nine thrips species were collected, all being new records for Algeria and Biskra province: Aeolothrips intermedius Bagnall, 1934, Bolothrips icarus (Uzel, 1895), Frankliniella occidentalis (Pergande, 1895), Kakothrips pisivorus (Westwood, 1880), Liothrips vaneeckei Priesner, 1920, Melanthrips fuscus (Sulzer, 1776), Odontothrips loti Haliday, 1852, Thrips minutissimus Linnaeus, 1758 and Thrips tabaci Lindeman, 1889. Bolothrips icarus, a fungal feeder, was the most frequently collected species (>25% of all specimens), followed by F. occidentalis, a widespread and polyphagous species that can cause economic damage. Other species were less frequent but still pose a potential threat to date palm production in this region. A key was developed for the thrips species collected in this study.
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Claims 13
Claim · model-written summary
Aeolothrips intermedius was newly recorded in Algeria and Biskra.
- Taxon
- Aeolothrips intermedius
Aeolothrips intermediuse0 - Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province: Aeolothrips intermedius Bagnall, 1934”
Claim · model-written summary
Bolothrips icarus was newly recorded in Algeria and Biskra.
- Taxon
- Bolothrips icarusBolothrips icaruse1
- Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Bolothrips icarus (Uzel, 1895)”
Claim · model-written summary
Frankliniella occidentalis was newly recorded in Algeria and Biskra.
- Taxon
- Frankliniella occidentalis
Frankliniella occidentalise1 - Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Frankliniella occidentalis (Pergande, 1895)”
Claim · model-written summary
Kakothrips pisivorus was newly recorded in Algeria and Biskra.
- Taxon
- Kakothrips pisivorusKakothrips pisivoruse1
- Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Kakothrips pisivorus (Westwood, 1880)”
Claim · model-written summary
Liothrips vaneeckei was newly recorded in Algeria and Biskra.
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Liothrips vaneeckei Priesner, 1920”
Claim · model-written summary
Melanthrips fuscus was newly recorded in Algeria and Biskra.
- Taxon
- Melanthrips fuscusMelanthrips fuscuse1
- Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Melanthrips fuscus (Sulzer, 1776)”
Claim · model-written summary
Odontothrips loti was newly recorded in Algeria and Biskra.
- Taxon
- Odontothrips lotiOdontothrips lotie1
- Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Odontothrips loti Haliday, 1852”
Claim · model-written summary
Thrips minutissimus was newly recorded in Algeria and Biskra.
- Taxon
- Thrips minutissimus
Thrips minutissimuse1 - Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Thrips minutissimus Linnaeus, 1758”
Claim · model-written summary
Thrips tabaci was newly recorded in Algeria and Biskra.
- Taxon
- Thrips tabaci
Thrips tabacie1 - Outcome
- new recordse0
- Setting
- Algeria and Biskra provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine thrips species were collected, all being new records for Algeria and Biskra province:”
e1“Thrips tabaci Lindeman, 1889”
Claim · model-written summary
Bolothrips icarus was most frequent, exceeding 25% of specimens.
- Taxon
- Bolothrips icarusBolothrips icaruse0
- Outcome
- most frequently collected speciese0
- Direction
- most frequentlye0
- Value
- >25%e0
Verbatim
e0“Bolothrips icarus, a fungal feeder, was the most frequently collected species (>25% of all specimens), followed by F. occidentalis”
Claim · model-written summary
F. occidentalis ranked after Bolothrips icarus in collection frequency.
- Taxon
- F. occidentalisFrankliniella occidentalise0
- Outcome
- followed by F. occidentalise0
- Comparator
- Bolothrips icaruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bolothrips icarus, a fungal feeder, was the most frequently collected species (>25% of all specimens), followed by F. occidentalis”
Claim · model-written summary
Other collected species were less frequent but potentially threatened date palm production.
- Taxon
- date palm
Phoenix dactyliferae0 - Outcome
- potential threat to date palm productione0
- Qualifier
- Other species were less frequente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other species were less frequent but still pose a potential threat to date palm production in this region.”
Claim · model-written summary
An identification key was developed for the collected thrips.
- Outcome
- A keye0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A key was developed for the thrips species collected in this study.”