Claim · model-written summary
Time-based correction factors for beetle counts ranged from 0.9 at 1800 hours to 2.5 at 1300 hours.
- Taxon
- snap beanse0
- Interactor
- western spotted cucumber beetles
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Diabrotica undecimpunctata undecimpunctatae0pest - Outcome
- correction factorse4
- Value
- from 0.9 for 1800 hours to 2.5 for 1300 hourse4
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Sweep-net sampling was evaluated as a method of sampling populations of adult western spotted cucumber beetles (WSCB), Dtabrotica undecimpunctata undecimpunctata Mannerheim, in snap beans, Phaseolus vulgaris L.”
e4“Time based correction factors used as multipliers to stabilize relative density estimates according to a standard (0900 hours) sampling time ranged from 0.9 for 1800 hours to 2.5 for 1300 hours”
Title
Richard A. Weinzierl; Ralph E. Berry; Glenn C. Fisher Journal of Economic Entomology 1986. doi:10.1093/jee/79.4.1100
Other claims from this paper (4)
- Method / resource Sweep-net beetle counts at later sampling episodes were significantly lower than initial counts in 16 of 42 comparisons.
- Association Subsequent-to-initial mean ratios of beetle counts were negatively correlated with the increase in solar radiation between sampling episodes.
- Intervention effect Estimated beetle counts were lowest for sweep sampling conducted at 1300 hours, compared with the 0900 hour standard.
- Method / resource Corrected sweep-net counts of beetles are linearly related to absolute density, y = 0.44 + 2.55x (R2 = 0.69).