Abstract
Field trials to test the efficacy of trap cropping and biological control for the management of Diabrotica undecimpunctata howardi Barber (Chrysomelidae: Luperini) in peanuts were conducted in 1992, 1993, and 1994. Cucurbita maxima Duchesne cv. ‘Blue Hubbard’ was used as a trap crop for adult beetles and the entomopathogenic nematodes, Steinernema carpocapse Weiser and Steinernema riobravis Cabanillas, Poinar and Raulston, were used as biological control agents against soil-inhabiting larvae. In 1992, peanut yields were highest in treatments that included a trap crop. Trap crop did not affect yield in 1993 or 1994. In 2 out of the 3 years, distribution of pod damage relative to the trap crop suggested that beetles oviposited more frequently in peanuts growing in the row next to the trap crop than in peanuts 3 rows from the trap crop. Although entomopathogenic nematodes persisted for a sufficient period to overlap with the presence of rootworms, they did not affect yield or pod damage in peanuts.
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Claims 7
Claim · model-written summary
Trap crop treatments had the highest peanut yields in 1992.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- trap crope0
- Interactor
- Diabrotica undecimpunctata howardi
.jpg?width=60)
Diabrotica undecimpunctata howardie1pest - Outcome
- peanut yieldse0
- Direction
- higheste0
- Setting
- 1992e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In 1992, peanut yields were highest in treatments that included a trap crop.”
e1“Diabrotica undecimpunctata howardi Barber (Chrysomelidae: Luperini) in peanuts”
Claim · model-written summary
Trap cropping did not affect yield in 1993.
- Taxon
- peanutsArachis hypogaeat0
- Treatment
- Trap crope0
- Outcome
- yielde0
- Direction
- did not affecte0
- Setting
- 1993e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trap crop did not affect yield in 1993 or 1994.”
t0“Evaluation of Trap Cropping and Biological Control Against Southern Corn Rootworm (Coleopetera: Chrysomelidae) in Peanuts”
Claim · model-written summary
Trap cropping did not affect yield in 1994.
- Taxon
- peanutsArachis hypogaeat0
- Treatment
- Trap crope0
- Outcome
- yielde0
- Direction
- did not affecte0
- Setting
- 1994e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trap crop did not affect yield in 1993 or 1994.”
t0“Evaluation of Trap Cropping and Biological Control Against Southern Corn Rootworm (Coleopetera: Chrysomelidae) in Peanuts”
Claim · model-written summary
Pod damage distribution suggested more beetle oviposition beside the trap crop than three rows away in two of three years.
- Taxon
- peanutsArachis hypogaeae0
- Interactor
- beetlesColeopterae0pest
- Outcome
- beetles ovipositede0
- Direction
- more frequentlye0
- Value
- 2 out of the 3 yearse0
- Comparator
- peanuts 3 rows from the trap crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2 out of the 3 years, distribution of pod damage relative to the trap crop suggested that beetles oviposited more frequently in peanuts growing in the row next to the trap crop than in peanuts 3 rows from the trap crop.”
Claim · model-written summary
Entomopathogenic nematodes persisted long enough to overlap with rootworms.
- Taxon
- peanutsArachis hypogaeat0
- Interactor
- rootwormse0pest
- Second interactor
- entomopathogenic nematodese0biocontrol_agent
- Outcome
- entomopathogenic nematodes persistede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“entomopathogenic nematodes persisted for a sufficient period to overlap with the presence of rootworms”
t0“Evaluation of Trap Cropping and Biological Control Against Southern Corn Rootworm (Coleopetera: Chrysomelidae) in Peanuts”
Claim · model-written summary
Entomopathogenic nematodes did not affect peanut yield.
- Taxon
- peanutsArachis hypogaeae0
- Treatment
- entomopathogenic nematodese0
- Interactor
- rootwormse0pest
- Second interactor
- entomopathogenic nematodese0biocontrol_agent
- Outcome
- yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“entomopathogenic nematodes persisted for a sufficient period to overlap with the presence of rootworms, they did not affect yield or pod damage in peanuts.”
Claim · model-written summary
Entomopathogenic nematodes did not affect peanut pod damage.
- Taxon
- peanutsArachis hypogaeae0
- Treatment
- entomopathogenic nematodese0
- Interactor
- rootwormse0pest
- Second interactor
- entomopathogenic nematodese0biocontrol_agent
- Outcome
- pod damagee0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“entomopathogenic nematodes persisted for a sufficient period to overlap with the presence of rootworms, they did not affect yield or pod damage in peanuts.”
The same questions in other papers
biocontrol · yield · Arachis hypogaea (peanut)Results differ
1 paper in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →biocontrol · pest · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- negative
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.