Abstract
The control of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) in cotton (Gossypium hirsutum L.) has been limited by the rapid development of resistance to insecticides and Bt toxins. The fall armyworm has become increasingly present in cotton fields, becoming a major problem for growers. Therefore, the demand for new and more sustainable tools for managing this pest has increased in recent years. Ideally, the new tool should be compatible with other available control tactics, such as the use of Bt plants, and it should be implemented following IPM principles. In this study, we tested the efficacy of a liquid pheromone formulation for the Fall armyworm control in Bt and conventional cotton varieties in the Brazilian Midwest. Our results showed that the capture of insects in traps has been reduced by 85% in areas treated with pheromone compared to control suggesting high levels of mating suppression. Pheromone treatment also resulted in 70% less damage to cotton reproductive structures when compared to areas not treated with the pheromone in conventional cotton. Moreover, applying pheromone provided an additional benefit to Bt cotton, resulting in 85% damage reduction. Our results show the effectiveness and feasibility of mating disruption with pheromone as an important management tactic for Lepidopterans in cotton. However, no significant differences were found in yield in the conditions tested. These results represent a potential key step toward developing more sustainable tools for pest management in Brazil.
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Claims 4
Claim · model-written summary
Pheromone treatment reduced fall armyworm trap captures by 85% relative to control.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- pheromonee0
- Interactor
- Spodoptera frugiperda
.jpg?width=60)
Spodoptera frugiperdae1pest - Outcome
- capture of insects in trapse0
- Direction
- reducede0
- Value
- 85%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“capture of insects in traps has been reduced by 85% in areas treated with pheromone compared to control”
e1“Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) in cotton”
Claim · model-written summary
Pheromone treatment reduced reproductive structure damage in conventional cotton by 70%.
- Taxon
- cottonGossypium hirsutume0
- Material
- conventional cottone0
- Treatment
- Pheromone treatmente0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdae1pest
- Outcome
- damage to cotton reproductive structurese0
- Direction
- lesse0
- Value
- 70%e0
- Comparator
- areas not treated with the pheromonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pheromone treatment also resulted in 70% less damage to cotton reproductive structures when compared to areas not treated with the pheromone in conventional cotton.”
e1“Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) in cotton”
Claim · model-written summary
Pheromone application reduced damage in Bt cotton by 85%.
- Taxon
- cottonGossypium hirsutume0
- Material
- Bt cottone0
- Treatment
- applying pheromonee0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdae1pest
- Outcome
- damagee0
- Direction
- reductione0
- Value
- 85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying pheromone provided an additional benefit to Bt cotton, resulting in 85% damage reduction”
e1“Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) in cotton”
Claim · model-written summary
Yield did not differ significantly under the tested conditions.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- Pheromone treatmente1
- Outcome
- yielde0
- Direction
- no significant differencese0
- Qualifier
- conditions testede0
- Comparator
- areas not treated with the pheromonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant differences were found in yield in the conditions tested”
e1“Pheromone treatment also resulted in 70% less damage to cotton reproductive structures when compared to areas not treated with the pheromone in conventional cotton.”
The same questions in other papers
pheromone · yield · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 3 reporting no difference from an alternative
- positive
- positive
- positive
2 papers more in this group
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.