Claim · model-written summary
Bark extracts deterred Colorado potato beetle feeding more than young or old leaf extracts.
- Taxon
- Solanum tuberosum L.
Solanum tuberosume1 - Treatment
- extracts of barke0
- Interactor
- Leptinotarsa decemlineata
Leptinotarsa decemlineatae1pest - Outcome
- most deterrente0
- Direction
- most deterrente0
- Comparator
- young leaves, old leavese0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e0“Of the three plant parts tested, young leaves, old leaves, and bark, extracts of bark were most deterrent.”
e1“Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), from feeding upon treated potato leaves, Solanum tuberosum L.”
Title
Effect of White Oak Extracts on Feeding by the Colorado Potato Beetle (Coleoptera: Chrysomelidae)
Francis A. Drummond; Richard A. Casagrande Journal of Economic Entomology 1985. doi:10.1093/jee/78.6.1272
Other claims from this paper (8)
- Intervention effect White oak leaf and bark alcohol extracts inhibited Colorado potato beetle feeding on treated potato leaves.
- Intervention effect White oak extracts did not inhibit adult Mexican bean beetle feeding on bean leaves.
- Intervention effect White oak extracts did not inhibit Japanese beetle feeding on grape leaves.
- Intervention effect Catechin at 0.0001 g/ml inhibited adult Colorado potato beetle feeding by 51%.
- Intervention effect Catechin at 0.01 g/ml completely inhibited adult Colorado potato beetle feeding.
- Intervention effect Colorado potato beetle first instars did not feed on leaves treated with 0.01 g/ml catechin.
- Intervention effect Colorado potato beetle first instars died within four days on leaves treated with 0.01 g/ml catechin.
- Intervention effect Tannic acid inhibited adult Colorado potato beetle feeding, less than catechin.