Abstract
Abstract Eggplant Solanum melongena L., is often colonized by two early season insect defoliators. The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), and flea beetles Epitrix spp., emerge from their overwintering sites in early spring and seek out emerging host plants such as eggplant. During the 2009 and 2010 growing season, field studies were conducted to investigate the impact of inter‐planting eggplant into a crimson clover (CC), Trifolium incarnatum L., winter cover crop on populations of flea beetles, CPB and their associated arthropod predators. The experiment consisted also of two levels of insecticide usage such as an application of azadirachtins plus pyrethrins followed by several applications of spinosad or no insecticide sprays as subplot treatments. During both study years, significantly fewer (adults, larvae and egg masses) were found on eggplant inter‐planted into CC than in bare‐ground (BG) eggplant plots. Although flea beetle abundance was greater in BG eggplant during 2010, they appeared to be less influenced by the presence of CC than were CPB. Additionally, there was no apparent impact of insecticide treatment on CPB populations on eggplant inter‐planted into CC. However, there was a decline in CPB following treatments with insecticides in BG eggplant plots. This suggests that a winter cover crop such as CC can be used to help manage CPB in eggplant, however, using this tactic in tandem with insecticide sprays may not result in greater CPB management.
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Claims 7
Claim · model-written summary
Significantly fewer adults, larvae and egg masses of flea beetles and CPB were found on eggplant inter-planted into crimson clover than in bare-ground eggplant plots.
- Taxon
- eggplant
Solanum melongenae1 - Treatment
- inter‐planted into CCe1
- Second interactor
- CPBe2pest
- Outcome
- adults, larvae and egg massese1
- Direction
- fewere1
- Comparator
- bare‐ground (BG) eggplant plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“significantly fewer (adults, larvae and egg masses) were found on eggplant inter‐planted into CC than in bare‐ground (BG) eggplant plots”
e2“flea beetles, CPB”
Claim · model-written summary
Flea beetle abundance was greater in bare-ground eggplant during 2010.
- Taxon
- eggplantSolanum melongenae1
- Interactor
- flea beetlee1pest
- Outcome
- flea beetle abundancee1
- Direction
- greatere1
- Qualifier
- during 2010e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“flea beetle abundance was greater in BG eggplant during 2010”
Claim · model-written summary
Flea beetles appeared to be less influenced by the presence of crimson clover than CPB were.
- Treatment
- presence of CCe2
- Interactor
- flea beetlee1pest
- Outcome
- less influencede2
- Direction
- less influencede2
- Comparator
- CPBe2
Not reportedTaxon
Verbatim
e1“flea beetle abundance was greater in BG eggplant during 2010”
e2“they appeared to be less influenced by the presence of CC than were CPB”
Claim · model-written summary
Insecticide treatment had no apparent impact on CPB populations on eggplant inter-planted into crimson clover.
- Taxon
- eggplantSolanum melongenae1
- Treatment
- insecticide treatmente1
- Interactor
- CPBe1pest
- Outcome
- CPB populationse1
- Direction
- no apparent impacte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there was no apparent impact of insecticide treatment on CPB populations on eggplant inter‐planted into CC”
Claim · model-written summary
CPB declined following insecticide treatments in bare-ground eggplant plots.
- Taxon
- eggplantSolanum melongenae1
- Treatment
- treatments with insecticidese1
- Interactor
- CPBe1pest
- Outcome
- CPBe1
- Direction
- declinee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there was a decline in CPB following treatments with insecticides in BG eggplant plots”
Claim · model-written summary
The authors conclude that a winter cover crop such as crimson clover can be used to help manage CPB in eggplant.
- Taxon
- eggplantSolanum melongenae1
- Outcome
- manage CPBe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“a winter cover crop such as CC can be used to help manage CPB in eggplant”
Claim · model-written summary
The authors note that using the cover crop together with insecticide sprays may not give greater CPB management.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- greater CPB managemente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Impact of crimson clover dying mulch on two eggplant insect herbivores”
e1“using this tactic in tandem with insecticide sprays may not result in greater CPB management”
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See all 6 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.