Abstract
The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp.) growing areas. The weevil is known to be relatively sedentary and closely associated with its host plant but little is known about the species' ability to migrate between banana fields and in nonhost habitats. Mark–recapture experiments were conducted to assess the weevils' migration potential, possible differences between the sexes, and the relative attractiveness of pseudostem and pheromone baits. One thousand two hundred marked weevils were released in the nonhost habitat at five distances (5, 10, 20, 40 and 70 m) from fresh pseudostem, and from pitfall traps baited with 45 mg of sordidin. Two hundred males and 200 females were marked and released at five distances (5, 10, 20, 40 and 70 m) from the pheromone traps. Distance and distance/bait interactions had a significant effect on recaptured weevils (binary logistic regression). The two baits were almost equally attractive to weevils in the range 0–10 m, whereas the pheromone was more attractive in the range 10–100 m. Distance, bait and distance/bait interactions had a significant effect on the time elapsed from release to recapture (regression with life data) but the pattern observed was not consistent. There was no significant difference between males and females with respect to distance or time elapsed from release to recapture. The results obtained in the present study show that the migration potential of the banana weevil is greater than previously reported. This should be taken into account when new banana fields are established with clean planting material.
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Claims 7
Claim · model-written summary
At 0–10 m the pheromone and pseudostem baits were almost equally attractive to banana weevils.
- Treatment
- pheromonee1
- Interactor
- Cosmopolites sordidus
Cosmopolites sordiduse0pest - Outcome
- attractivee2
- Direction
- almost equallye2
- Qualifier
- in the range 0–10 me2
- Comparator
- pseudosteme1
MusaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e1“the relative attractiveness of pseudostem and pheromone baits”
e2“The two baits were almost equally attractive to weevils in the range 0–10 m”
Claim · model-written summary
At 10–100 m the pheromone bait was more attractive to banana weevils than the pseudostem bait.
- Treatment
- pheromonee2
- Interactor
- Cosmopolites sordidusCosmopolites sordiduse0pest
- Outcome
- attractivee2
- Direction
- more attractivee2
- Qualifier
- in the range 10–100 me2
- Comparator
- pseudosteme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e1“the relative attractiveness of pseudostem and pheromone baits”
e2“The two baits were almost equally attractive to weevils in the range 0–10 m, whereas the pheromone was more attractive in the range 10–100 m”
Claim · model-written summary
Distance and distance-by-bait interactions had a significant effect on the number of recaptured banana weevils.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e3“Distance and distance/bait interactions had a significant effect on recaptured weevils (binary logistic regression)”
Claim · model-written summary
Distance, bait and their interactions had a significant effect on the time from release to recapture of banana weevils, but the pattern was not consistent.
- Treatment
- Distance, bait and distance/bait interactionse4
- Outcome
- time elapsed from release to recapturee4
- Qualifier
- the pattern observed was not consistente4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e4“Distance, bait and distance/bait interactions had a significant effect on the time elapsed from release to recapture (regression with life data) but the pattern observed was not consistent”
Claim · model-written summary
Male and female banana weevils did not differ in distance or in time from release to recapture.
- Outcome
- distance or time elapsed from release to recapturee5
- Direction
- no significant differencee5
- Comparator
- femalese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e5“There was no significant difference between males and females with respect to distance or time elapsed from release to recapture”
Claim · model-written summary
The migration potential of the banana weevil is greater than previously reported.
- Interactor
- Cosmopolites sordidusCosmopolites sordiduse0pest
- Outcome
- migration potentiale6
- Direction
- greater than previously reportede6
- Comparator
- previously reportede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is a major pest in banana ( Musa spp. ) growing areas”
e6“The results obtained in the present study show that the migration potential of the banana weevil is greater than previously reported”
Claim · model-written summary
The authors recommend considering banana weevil migration when new banana fields are established with clean planting material.
Verbatim
e7“This should be taken into account when new banana fields are established with clean planting material”
The same questions in other papers
pheromone · Cosmopolites sordidus · MusaPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
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.