Claim · model-written summary
K and S had a residual effect reducing wireworm counts the next year.
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e0“There was also a residual effect the following year, a reduction in the number of the wireworms and an increase in the plant stand (barley), although there was no sigdicant increase in the final crop yield.”
Title
FIELD EXPERIMENTS ON THE CONTROL OF WIREWORMS
W. R. S. LADELL; W. G. COCHRAN Annals of Applied Biology 1938. doi:10.1111/j.1744-7348.1938.tb02338.x
Other claims from this paper (19)
- Method / resource Potato and cabbage-leaf bait counts did not correspond to wireworm numbers in soil.
- Observation There was no conclusive evidence for different fumigant action across wireworm size groups.
- Observation Mean starting wireworm density was 65 per square yard in the first experiment.
- Observation Mean starting wireworm density was 335 per square yard in the second experiment.
- Observation Mean starting wireworm density was 277 per square yard in the third experiment.
- Mechanism Uneven wireworm distribution caused high sampling errors, accounting for most experimental error.
- Association Soil pH was unrelated to wireworm density.
- Observation Untreated control populations changed by −23% in the first experiment.
- Observation Untreated control populations changed by +1% in the second experiment.
- Observation Untreated control populations changed by −9% in the third experiment.
- Intervention effect Fumigant K reduced wireworm populations by 69%.
- Intervention effect Fumigant S reduced wireworm populations by 62%.
- Intervention effect K and S adversely affected sugar-beet.
- Intervention effect K and S increased the following year barley plant stand.
- Intervention effect K and S did not significantly increase final barley yield.
- Intervention effect Chlorpicrin reduced wireworm populations by 46% in one trial.
- Intervention effect Chlorpicrin reduced wireworm populations by 33% in another trial.
- Intervention effect Chlorpicrin caused no harmful effect on sugar-beet or barley.
- Intervention effect Sodium cyanide reduced wireworms by 45% and increased sugar-beet yield.