Abstract
The invasive fall armyworm (FAW) is threatening maize production and the livelihoods of millions of smallholder farmers in the newly invaded areas in Africa and Asia. To control this new key pest and to overcome health, environmental, and resistance problems related to the indiscriminate use of insecticides, effective and sustainable alternative pest control approaches are needed. Here, we report on field trials that tested maltodextrin, neem-based products, ash, and soil, as well as the locally produced alata samina soap, in the Upper West and Greater Accra regions, Ghana. Significant reductions of larval numbers and crop damage, together with increased yields, were mostly achieved by applying the insecticide emamectin benzoate, which was considered the positive control in this set of trials. However, high efficiency and cost-benefit ratios were also achieved with two neem-based products. Maltodextrin was only efficient at one of the two sites, with a clear dose-dependent effect, while the higher dosage was nearly as effective as emamectin benzoate. Due to its relatively high product cost, maltodextrin is generally less cost-efficient. Ash and soil, as well as alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested; thus, they also did not significantly increase maize yields.
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Claims 10
Claim · model-written summary
Emamectin benzoate significantly reduced larval numbers.
- Treatment
- emamectin benzoatee0
- Interactor
- fall armyworm
.jpg?width=60)
Spodoptera frugiperdat0pest - Outcome
- larval numberse0
- Direction
- reductionse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Significant reductions of larval numbers and crop damage, together with increased yields, were mostly achieved by applying the insecticide emamectin benzoate”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Emamectin benzoate significantly reduced crop damage.
- Treatment
- emamectin benzoatee0
- Interactor
- fall armywormSpodoptera frugiperdat0pest
- Outcome
- crop damagee0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant reductions of larval numbers and crop damage, together with increased yields, were mostly achieved by applying the insecticide emamectin benzoate”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Emamectin benzoate increased maize yields.
- Treatment
- emamectin benzoatee0
- Interactor
- fall armywormSpodoptera frugiperdat0pest
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant reductions of larval numbers and crop damage, together with increased yields, were mostly achieved by applying the insecticide emamectin benzoate”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Two neem-based products had high efficacy and cost-benefit ratios.
- Treatment
- two neem-based productse0
- Interactor
- fall armywormSpodoptera frugiperdat0pest
- Outcome
- efficiency and cost-benefit ratiose0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high efficiency and cost-benefit ratios were also achieved with two neem-based products.”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Maltodextrin was efficient at only one of two sites and showed a dose-dependent effect.
- Treatment
- Maltodextrine0
- Interactor
- fall armywormSpodoptera frugiperdat0pest
- Outcome
- efficiente0
- Direction
- nearly as effectivee0
- Qualifier
- one of the two sitese0
- Comparator
- emamectin benzoatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maltodextrin was only efficient at one of the two sites, with a clear dose-dependent effect, while the higher dosage was nearly as effective as emamectin benzoate.”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Maltodextrin was generally less cost-efficient because of high product cost.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Due to its relatively high product cost, maltodextrin is generally less cost-efficient.”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Ash and soil did not efficiently reduce fall armyworm larvae or crop damage.
- Treatment
- Ash and soile0
- Interactor
- FAWe0pest
- Outcome
- FAW larval numbers or crop damagee0
- Direction
- did not efficiently reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ash and soil, as well as alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Alata samina soap did not efficiently reduce fall armyworm larvae or crop damage.
- Treatment
- alata samina soape0
- Interactor
- FAWe0pest
- Outcome
- FAW larval numbers or crop damagee0
- Direction
- did not efficiently reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested”
t0“fall armyworm, Spodoptera Frugiperda, in Maize”
Claim · model-written summary
Ash and soil did not significantly increase maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ash and soil, as well as alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested; thus, they also did not significantly increase maize yields.”
Claim · model-written summary
Alata samina soap did not significantly increase maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested; thus, they also did not significantly increase maize yields.”
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See all 53 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.