Claim · model-written summary
Yellow traps caught many more fall winter-form psylla than clear traps.
- Taxon
- Pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Treatment
- yellow trapse0
- Outcome
- fall populations of winter formse0
- Direction
- much greatere0
- Comparator
- clear trapse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“Catch of summer forms and fall populations of winter forms was much greater on yellow traps than on clear traps”
t0“Pear Psylla”
Title
Seasonality of Catch of Pear PsyllaCacopsylla pyricola(Homoptera: Psyllidae) on Yellow Traps
James L. Krysan; David R. Horton Environmental Entomology 1991. doi:10.1093/ee/20.2.626
Other claims from this paper (10)
- Association Yellow and clear sticky trap catches were positively correlated.
- Association Trap and beating tray catches tended to have nonsignificant correlations.
- Intervention effect Yellow traps caught many more summer-form psylla than clear traps.
- Intervention effect Before bud break, clear traps caught as many or more psylla than yellow traps.
- Intervention effect As green tissue appeared on pear trees, yellow traps caught far more psylla.
- Association Trap-color catch differences were larger at the higher trap height.
- Intervention effect Percentage of captures on yellow traps showed no position effect.
- Observation Spring winter-form sticky trap catches were strongly male biased.
- Observation Early spring beating tray samples showed similar male bias.
- Observation Male bias declined over successive sampling dates.