Abstract
Three different control methods, row cover, staggered plantings, and the release of a parasitic wasp, Pediobiusfoveolatus , were used to test effectiveness at controlling Mexican bean beetle (MBB) infestations on snap beans. The study consisted of six plots, on five different farms in the Morgantown, W. Va. area, three with and three without the application of the control methods. Releases of 15 adults and 100 larvae during flowering of the bean crop occurred at each plot. Weekly counts of the three MBB life stages, parasitized MBB larvae, and bean yields were taken. The results showed that the release of the parasitic wasp maintained the MBB populations below economic thresholds throughout the growing season. The average yield from plots that received wasp treatments was 34.2 kg, compared to 15.2 kg harvested from untreated plots. Plots that received row cover treatments were shown to be slightly more effective than staggered plantings at controlling MBB populations. Row cover plots yielded an average of 15.3 kg, in comparison to the 11.8 kg yield from untreated plots, while staggered plantings in treated plots yielded 9.5 kg, compared to 6.0 kg from untreated plots. End of season MBB populations in treated plots consisted of 75 adults, 57 pupae, 275 larvae, and 94 parasitized larvae compared to untreated populations, 98 adults, 214 pupae, 420 larvae on average. In conclusion, increased yields can likely be correlated to decreased MBB populations, indicating the release of P. foveolatus as a viable option for control of MBB, especially in organic systems.
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Claims 7
Claim · model-written summary
Parasitic wasp release kept Mexican bean beetle populations below economic thresholds through the growing season.
- Taxon
- snap beanse1
- Treatment
- release of the parasitic waspe0
- Interactor
- Mexican bean beetle
Epilachna varivestise1pest - Second interactor
- Pediobiusfoveolatuse2biocontrol_agent
- Outcome
- MBB populationse0
- Direction
- below economic thresholdse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the release of the parasitic wasp maintained the MBB populations below economic thresholds throughout the growing season”
e1“Mexican bean beetle (MBB) infestations on snap beans”
e2“Pediobiusfoveolatus”
Claim · model-written summary
Wasp treated plots yielded 34.2 kg versus 15.2 kg in untreated plots.
- Taxon
- snap beanse1
- Treatment
- wasp treatmentse0
- Interactor
- Pediobiusfoveolatuse2biocontrol_agent
- Outcome
- average yielde0
- Value
- 34.2 kge0
- Qualifier
- 15.2 kge0
- Comparator
- untreated plotse0
Not reportedDirection
Verbatim
e0“The average yield from plots that received wasp treatments was 34.2 kg, compared to 15.2 kg harvested from untreated plots”
e1“snap beans”
e2“Pediobiusfoveolatus”
Claim · model-written summary
Row covers controlled beetle populations slightly more effectively than staggered planting.
- Taxon
- snap beanse1
- Treatment
- row cover treatmentse0
- Interactor
- Mexican bean beetleEpilachna varivestise2pest
- Outcome
- controlling MBB populationse0
- Direction
- slightly more effectivee0
- Comparator
- staggered plantingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plots that received row cover treatments were shown to be slightly more effective than staggered plantings at controlling MBB populations”
e1“snap beans”
e2“Mexican bean beetle (MBB)”
Claim · model-written summary
Row cover plots averaged 15.3 kg yield versus 11.8 kg in untreated plots.
- Taxon
- snap beanse1
- Treatment
- Row covere0
- Outcome
- yielde0
- Value
- 15.3 kge0
- Qualifier
- 11.8 kge0
- Comparator
- untreated plotse0
Not reportedDirection
Verbatim
e0“Row cover plots yielded an average of 15.3 kg, in comparison to the 11.8 kg yield from untreated plots”
e1“snap beans”
Claim · model-written summary
Staggered planting plots averaged 9.5 kg yield versus 6.0 kg in untreated plots.
- Taxon
- snap beanse1
- Treatment
- staggered plantingse0
- Outcome
- yieldede0
- Value
- 9.5 kge0
- Qualifier
- 6.0 kge0
- Comparator
- untreated plotse0
Not reportedDirection
Verbatim
e0“staggered plantings in treated plots yielded 9.5 kg, compared to 6.0 kg from untreated plots”
e1“snap beans”
Claim · model-written summary
Treated plots ended with 75 adult, 57 pupal, 275 larval and 94 parasitized larval beetles, versus 98 adult, 214 pupal and 420 larval beetles in untreated plots.
- Taxon
- snap beanse1
- Treatment
- treated plotse0
- Interactor
- Mexican bean beetleEpilachna varivestise2pest
- Outcome
- End of season MBB populationse0
- Comparator
- untreated populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“End of season MBB populations in treated plots consisted of 75 adults, 57 pupae, 275 larvae, and 94 parasitized larvae compared to untreated populations, 98 adults, 214 pupae, 420 larvae on average”
e1“snap beans”
e2“Mexican bean beetle (MBB)”
Claim · model-written summary
The authors identify P. foveolatus release as a viable beetle control option, especially in organic systems.
- Taxon
- snap beanse1
- Treatment
- release of P. foveolatuse0
- Interactor
- Mexican bean beetleEpilachna varivestise2pest
- Second interactor
- P. foveolatuse0biocontrol_agent
- Outcome
- viable option for control of MBBe0
- Qualifier
- especially in organic systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the release of P. foveolatus as a viable option for control of MBB, especially in organic systems”
e1“snap beans”
e2“Mexican bean beetle (MBB)”
The same questions in other papers
trap barrier · yield · Phaseolus vulgaris (common bean)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.