Claim · model-written summary
Common ragweed and common lambsquarters reached the reported emergence threshold before 150 DD.
- Taxon
- Common ragweed and common lambsquarters
Chenopodium albumAmbrosia artemisiifoliae0
- Outcome
- emergencee0
- Value
- before 150 DDe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Common ragweed and common lambsquarters were among the earliest species to emerge, reaching 10% emergence before 150 DD.”
Title
Predicting weed emergence for eight annual species in the northeastern United States
Matthew W. Myers; William S. Curran; Mark J. VanGessel; et al. Weed Science 2004. doi:10.1614/ws-04-025r
Other claims from this paper (4)
- Method / resource Logistic emergence models fit field data for eight weed species with coefficients of determination from 0.90 to 0.95.
- Observation Velvetleaf, giant foxtail, and yellow foxtail reached the reported emergence threshold by 180 DD.
- Observation large crabgrass, smooth pigweed, and eastern black nightshade reached the reported emergence threshold after 280 DD.
- Method / resource Verification plot models had coefficients of determination of 0.66 to 0.99, averaging 0.90.