Claim · model-written summary
Potato psyllid numbers were lowest in control plots where phytoseiid numbers were highest in 2013, suggesting a predator-prey relationship.
- Taxon
- potato
Solanum tuberosumt0 - Interactor
- potato psyllids
Bactericera cockerellie3pest - Second interactor
- phytoseiidse3biocontrol_agent
- Outcome
- numbers of potato psyllidse3
- Direction
- loweste3
- Comparator
- control plotse3
Not reportedMaterialGeneCompoundOrgan / stageTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“organic potato production”
e3“The highest numbers of phytoseiids and lowest numbers of potato psyllids in the control plots in 2013 suggested a predator-prey relationship between these organisms”
Title
Raul T. VILLANUEVA; Gabriela ESPARZA-DIAZ; Cal W. WELBOURN Journal of the Acarological Society of Japan 2016. doi:10.2300/acari.25.suppl_137
Other claims from this paper (10)
- Intervention effect Azadirachtin, pyrethrin or spinosad did not adequately control Bactericera cockerelli in potato in 2013.
- Intervention effect Numbers of Bemisia tabaci nymphs were significantly lower after azadirachtin and pyrethrin treatments than after spinosad or in untreated control.
- Intervention effect Phytoseiid mites were significantly lower after azadirachtin and pyrethrin treatments than after spinosad or in untreated control.
- Observation Phytoseiid mites Amblyseius largoensis, Typhlodromips near tennesseensis and Typhlodromalus near peregrinus were identified in potato fields.
- Observation Amblyseius largoensis is a predator of Bactericera cockerelli eggs and nymphs.
- Observation Immature Lasioerythraeus mites were found parasitizing B. cockerelli nymphs in a conventional commercial field.
- Observation Fungivorous tydeid mites of the genus Metapronematus were found in most potato fields.
- Observation Potato yields did not differ among treatments in either year.
- Association High numbers of Bactericera cockerelli in 2013 lowered potato yield by 1/5-1/3 relative to 2014.
- Association High numbers of Bactericera cockerelli in 2013 resulted in smaller potato tubers.