Abstract
Abstract The silverleaf whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), is one of the most important pest insects in tomato crop systems worldwide. It has been previously demonstrated that intercropping tomato [ Solanum lycopersicum L. Mill. (Solanaceae)] with coriander [ Coriandrum sativum L. (Apiaceae)] reduces the incidence and severity of damage caused by B. tabaci . However, it is not yet known how coriander affects the insect′s behaviour. We evaluated the attractiveness of tomato constitutive volatiles to B. tabaci and what effect coriander constitutive volatiles have on the insect′s behaviour. To this end, we conducted three bioassays in a multiple‐choice four‐arm olfactometer (‘×’ type), measuring B. tabaci behaviour when offered tomato and coriander constitutive volatiles presented alone as well as together. We also evaluated the colonisation and establishment of B. tabaci in experimental plots with only single tomato plants and tomatoes intercropped with coriander in a greenhouse. Bemisia tabaci males and females recognised tomato constitutive volatiles as a positive stimulus (kairomonal effect), indicating that semiochemicals from this plant can play an important role in the insect’s host plant selection. Coriander constitutive volatiles reduced the attractiveness of tomato volatiles but no repellency to these volatiles was observed. Greater numbers of adults and nymphs of B. tabaci per plant were observed in tomato monoculture plots than in tomato intercropped with coriander. We suggest that coriander constitutive volatiles have an odour masking effect on tomato volatiles, thus interfering in the host plant selection of B. tabaci .
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Claims 5
Claim · model-written summary
Male and female whiteflies recognised tomato volatiles as an attractive stimulus.
- Taxon
- tomato
Solanum lycopersicume0 - Interactor
- Bemisia tabaci
Bemisia tabacie0pest - Outcome
- positive stimuluse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bemisia tabaci males and females recognised tomato constitutive volatiles as a positive stimulus (kairomonal effect)”
Claim · model-written summary
Coriander volatiles reduced the attractiveness of tomato volatiles to whiteflies.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Coriander constitutive volatilese0
- Outcome
- attractivenesse0
- Direction
- reducede0
- Comparator
- tomato volatilese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Coriander constitutive volatiles reduced the attractiveness of tomato volatiles”
Claim · model-written summary
Coriander volatiles did not repel whiteflies.
Not reportedTaxon
Verbatim
e0“no repellency to these volatiles was observed”
Claim · model-written summary
Tomato monoculture had more adult and nymph whiteflies per plant than tomato intercropped with coriander.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- tomato intercropped with coriandere0
- Interactor
- B. tabaciBemisia tabacie0pest
- Outcome
- numbers of adults and nymphs of B. tabaci per plante0
- Direction
- Greatere0
- Comparator
- tomato monoculture plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater numbers of adults and nymphs of B. tabaci per plant were observed in tomato monoculture plots than in tomato intercropped with coriander”
Claim · model-written summary
The authors suggest coriander volatiles mask tomato odour and interfere with whitefly host selection.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- coriander constitutive volatilese0
- Interactor
- B. tabaciBemisia tabacie0pest
- Outcome
- host plant selectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We suggest that coriander constitutive volatiles have an odour masking effect on tomato volatiles, thus interfering in the host plant selection of B. tabaci”
The same questions in other papers
Coriandrum sativum · Bemisia tabaci · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
Coriandrum sativum · pest · Solanum lycopersicum (tomato)Positive and negative results
2 in the opposite direction
- positive
- positive
intercropping · Bemisia tabaci · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 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.