Abstract
In this research, the impact of deltamethrin, sprayed on the aerial part of cornplants, on pests and on predator arthopod populations was evaluated. The experimental designwas randomized blocks with four replicates. The insecticide (Decis 25 CE, 7.5 g. a. i./ha) wasapplied on the plant whorl when the corn plant reached 10 expanded leaves. Samples weretaken from 10 plants per plot, one day before, 7, 10, 14, 21 and 28 days after spraying, toevaluate population density or occurence of arthropods and the percentage of plants attackedby Spodoptera frugiperda. The insecticide controlled this pest infestation up to 7 days afterspraying and also significantly reduced population density of the leafhopper Dalbulus maidis.The insecticide did not affect negatively the complex of arthropod predators associated withthe aerial part of the corn plant. It showed selective toxicity, favoring both nymphs and adults ofDoru luteipes and of an unidentified group of ants and spiders. These results support the use of deltamethrin on integrated pest management programs of S. frugiperda on corn, specially inagroecossistems with high predator abundance.
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Claims 5
Claim · model-written summary
Deltamethrin controlled Spodoptera infestation for seven days.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- insecticidee0
- Outcome
- pest infestatione0
- Direction
- controllede0
- Qualifier
- up to 7 days aftersprayinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide controlled this pest infestation up to 7 days afterspraying”
t0“CORN”
Claim · model-written summary
Deltamethrin significantly reduced Dalbulus maidis density.
- Taxon
- cornZea mays subsp. mayst0
- Interactor
- Dalbulus maidis
Dalbulus maidise0pest - Outcome
- population density of the leafhopper Dalbulus maidise0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly reduced population density of the leafhopper Dalbulus maidis”
t0“CORN”
Claim · model-written summary
Deltamethrin did not negatively affect the corn predator complex.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- insecticidee0
- Outcome
- complex of arthropod predatorse0
- Direction
- did not affect negativelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide did not affect negatively the complex of arthropod predators associated withthe aerial part of the corn plant.”
t0“CORN”
Claim · model-written summary
The insecticide showed selective toxicity favoring Doru luteipes, ants and spiders.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- selective toxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It showed selective toxicity, favoring both nymphs and adults ofDoru luteipes and of an unidentified group of ants and spiders.”
t0“CORN”
Claim · model-written summary
The authors support deltamethrin in integrated management of S. frugiperda in corn.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- S. frugiperda
.jpg?width=60)
Spodoptera frugiperdae0pest - Outcome
- use of deltamethrin on integrated pest management programs of S. frugiperdae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“These results support the use of deltamethrin on integrated pest management programs of S. frugiperda on corn, specially inagroecossistems with high predator abundance.”
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See all 62 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.