Abstract
Abstract Studies were conducted in Uganda to evaluate the influence of distance, environmental factors, trap location and trap type on catches of Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) in pheromone-baited traps. Marked weevils were released at recorded locations within plots. Trap efficiency was low and decreased with distance from the pheromone trap. When weevils were released in close vicinity to the trap, significantly more weevils were recaptured from 0.5 m compared to those recaptured from 4 m within 30 days of trap placement. Relative humidity showed a significant positive relationship to C. sordidus catches, while wind speed, temperature and rainfall had no effect. Covering pheromone-baited traps with banana leaves increased capture rates. In one experiment, more weevils were captured in pheromone-baited traps placed in alleys than at the base of mats, while no differences were found in the second. This study provides information on how various factors influence the effectiveness of pheromone-baited traps that will assist in designing a pheromone-based mass trapping strategy for the control of C. sordidus.
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Claims 7
Claim · model-written summary
Efficiency of pheromone traps for banana weevil was low and decreased with distance from the trap.
- Taxon
- bananat0
- Interactor
- Cosmopolites sordidus
Cosmopolites sordidust1pest - Outcome
- Trap efficiencye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“Trap efficiency was low and decreased with distance from the pheromone trap”
Claim · model-written summary
Significantly more released weevils were recaptured from 0.5 m than from 4 m from the trap within 30 days.
- Taxon
- bananat0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- weevils were recapturede0
- Direction
- significantly moree0
- Qualifier
- within 30 days of trap placemente0
- Comparator
- 4 me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“When weevils were released in close vicinity to the trap, significantly more weevils were recaptured from 0.5 m compared to those recaptured from 4 m within 30 days of trap placement”
Claim · model-written summary
Relative humidity had a significant positive relationship with C. sordidus catches.
- Taxon
- bananat0
- Treatment
- Relative humiditye0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- C. sordidus catchese0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“Relative humidity showed a significant positive relationship to C. sordidus catches, while wind speed, temperature and rainfall had no effect”
Claim · model-written summary
Wind speed, temperature and rainfall had no effect on C. sordidus catches.
- Taxon
- bananat0
- Treatment
- wind speed, temperature and rainfalle0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- catchese0
- Direction
- no effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“Relative humidity showed a significant positive relationship to C. sordidus catches, while wind speed, temperature and rainfall had no effect”
Claim · model-written summary
Covering pheromone-baited traps with banana leaves increased capture rates.
- Taxon
- bananat0
- Treatment
- Covering pheromone-baited traps with banana leavese0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- capture ratese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“Covering pheromone-baited traps with banana leaves increased capture rates”
Claim · model-written summary
In one experiment more weevils were captured in traps placed in alleys than at the base of mats.
- Taxon
- bananat0
- Treatment
- traps placed in alleyse0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- weevils were capturede0
- Direction
- moree0
- Comparator
- at the base of matse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“In one experiment, more weevils were captured in pheromone-baited traps placed in alleys than at the base of mats, while no differences were found in the second”
Claim · model-written summary
In the second experiment no differences in weevil captures were found between trap positions.
- Taxon
- bananat0
- Interactor
- Cosmopolites sordidusCosmopolites sordidust1pest
- Outcome
- weevils were capturede0
- Direction
- no differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana weevil”
t1“Cosmopolites sordidus”
e0“In one experiment, more weevils were captured in pheromone-baited traps placed in alleys than at the base of mats, while no differences were found in the second”
The same questions in other papers
trap barrier · Cosmopolites sordidus · MusaPositive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- negative
5 papers more in this group
See all 9 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.