Abstract
(Say) (Coleoptera: Chrysomelidae), the Colorado potato beetle (CPB). In order to determine if the nutritional status of potatoes as affected by mulch could explain the mulch effects in potatoes against CPB, we determined potato leaf nutrient composition in unmulched control plots and plots mulched with grass-clover or triticale-vetch and assessed mulch effects on CPB damage and development in the field during 3 years and under controlled conditions. In mulched plots, foliar Mo, Cl, and K contents were consistently higher than those without mulch, and leaf damage by CPB was reduced significantly. In addition, increased B contents were associated with undamaged plant material, while higher Zn contents were associated with leaves damaged by CPB. Under controlled conditions, CPB fitness was not affected by mulch application. Overall, reduced CPB damage could not be clearly attributed to altered foliar nutrient contents due to mulching. It is thus more likely that CPB reductions in mulched systems are due to mechanisms other than an altered nutrient balance.
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Claims 6
Claim · model-written summary
Mulched potato plots had higher foliar Mo, Cl and K contents.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- mulched plotse0
- Outcome
- foliar Mo, Cl, and K contentse0
- Direction
- highere0
- Comparator
- without mulche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In mulched plots, foliar Mo, Cl, and K contents were consistently higher than those without mulch”
t0“Potato Foliage”
Claim · model-written summary
Mulch significantly reduced beetle leaf damage.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- mulched plotse0
- Interactor
- CPBe0pest
- Outcome
- leaf damage by CPBe0
- Direction
- reducede0
- Comparator
- without mulche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In mulched plots, foliar Mo, Cl, and K contents were consistently higher than those without mulch, and leaf damage by CPB was reduced significantly.”
t0“Potato Foliage”
Claim · model-written summary
Increased B content was associated with undamaged potato material.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- B contentse0
- Direction
- increasede0
- Comparator
- undamaged plant materiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased B contents were associated with undamaged plant material”
t0“Potato Foliage”
Claim · model-written summary
Higher Zn content was associated with beetle damaged leaves.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- leavese0
- Interactor
- CPBe0pest
- Outcome
- Zn contentse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher Zn contents were associated with leaves damaged by CPB”
t0“Potato Foliage”
Claim · model-written summary
Under controlled conditions mulch did not affect beetle fitness.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- mulch applicatione0
- Interactor
- CPBe0pest
- Outcome
- CPB fitnesse0
- Direction
- not affectede0
- Setting
- controlled conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under controlled conditions, CPB fitness was not affected by mulch application.”
t0“Potato Foliage”
Claim · model-written summary
The authors could not clearly attribute reduced beetle damage to altered foliar nutrients.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- CPBe0pest
- Outcome
- reduced CPB damagee0
- Qualifier
- altered foliar nutrient contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced CPB damage could not be clearly attributed to altered foliar nutrient contents due to mulching”
t0“Potato Foliage”
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mulching · organism · Solanum tuberosum (potato)Positive and negative results
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See all 5 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.