Abstract
During the past decade, the use of predatory mirids alone or combined with releases of egg parasitoids of the genus Trichogramma have been tested in Europe for biological control of the worldwide invasive pest, Tuta absoluta (Meyrick). Here, we evaluated the control of this pest by the release of the Neotropical mirid Macrolophus basicornis (Stal), the Neotropic/Nearctic parasitoid Trichogramma pretiosum Riley, and by combined releases of the predator and the parasitoid. Tests were conducted in greenhouse compartments during the summer and fall season. Each compartment contained 10 tomato plants in which only the pest was released or the pest with 1 or 2 natural enemies. Plant damage, and pest and natural enemy densities were checked weekly on one apical, medium, and bottom leaf of 5 plants. Both M. basicornis and T. pretiosum significantly reduced T. absoluta density when released alone. Combined releases resulted in a 10% higher reduction during the summer season, but not during the fall season. The damage caused by T. absoluta was significantly higher in control treatments than in all natural enemy treatments: at the end of the summer trial leaves were completely damaged in the control treatment, whereas only up to 25% leaf damage occurred in the natural enemy treatments. Combined releases did not result in lower damage than with releases of either M. basicornis or T. pretiosum. Practical aspects of single and combined releases are discussed.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Macrolophus basicornis alone significantly reduced Tuta absoluta density.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- M. basicornise0
- Interactor
- T. absoluta
.jpg?width=60)
Tuta absolutae0pest - Second interactor
- M. basicornise0biocontrol_agent
- Outcome
- T. absoluta densitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Both M. basicornis and T. pretiosum significantly reduced T. absoluta density when released alone.”
t0“tomato”
Claim · model-written summary
Trichogramma pretiosum alone significantly reduced Tuta absoluta density.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- T. pretiosume0
- Interactor
- T. absolutaTuta absolutae0pest
- Second interactor
- T. pretiosumTrichogramma pretiosume0biocontrol_agent
- Outcome
- T. absoluta densitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both M. basicornis and T. pretiosum significantly reduced T. absoluta density when released alone.”
t0“tomato”
Claim · model-written summary
Combined releases gave 10% higher pest reduction in summer.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Combined releasese0
- Outcome
- reductione0
- Direction
- higher reductione0
- Value
- 10%e0
- Qualifier
- during the summer seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined releases resulted in a 10% higher reduction during the summer season, but not during the fall season.”
t0“tomato”
Claim · model-written summary
Combined releases did not improve pest reduction during fall.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Combined releasese0
- Outcome
- reductione0
- Direction
- no_changeinferrede0
- Qualifier
- during the fall seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined releases resulted in a 10% higher reduction during the summer season, but not during the fall season.”
t0“tomato”
Claim · model-written summary
Tuta absoluta damage was significantly greater in controls than all natural enemy treatments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- all natural enemy treatmentse0
- Interactor
- T. absolutaTuta absolutae0pest
- Outcome
- damage caused by T. absolutae0
- Direction
- highere0
- Value
- up to 25%e0
- Qualifier
- leaves were completely damaged in the control treatmente0
- Comparator
- control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The damage caused by T. absoluta was significantly higher in control treatments than in all natural enemy treatments: at the end of the summer trial leaves were completely damaged in the control treatment, whereas only up to 25% leaf damage occurred in the natural enemy treatments.”
t0“tomato”
Claim · model-written summary
Combined releases did not lower leaf damage beyond either single natural enemy release.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Combined releasese0
- Outcome
- damagee0
- Direction
- did not result in lowere0
- Comparator
- releases of either M. basicornis or T. pretiosume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined releases did not result in lower damage than with releases of either M. basicornis or T. pretiosum.”
t0“tomato”
The same questions in other papers
Trichogramma pretiosum · Tuta absoluta · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.