Abstract
The objective of this study was to determine if trap crops of Indian mustard, Brassica juncea (L.) Czern., and ‘Tastie’ head cabbage, Brassica oleracea variety capitata L., grown alongside a main crop of ‘Scorpio’ head cabbage would significantly reduce lepidopteran pest numbers and improve yields on the main crop. For the 2 most economically important lepidopteran pests in the trials, diamondback moth, Plutella xylostella (L.), and imported cabbageworm, Pieris rapae (L.), significantly higher numbers were found on trap-cropped Scorpio than on monoculture Scorpio for certain key sampling dates. Numbers of Plutella xylostella were higher on the trap crops than on trap-cropped Scorpio for certain key dates. It appears that Indian mustard and Tastie cabbage acted effectively as attractants, but through an undetermined mechanism contamination of the adjacent Scorpio crop occurred. There were no significant differences in yield or marketability between monoculture Scorpio and trap-cropped Scorpio. Various changes in agroecosystem management might allow the attractiveness of the trap crops to be used in a beneficial manner. Indian mustard and Tastie cabbage show potential for use as trap crops for Hellula undalis (F.), cabbage looper, Trichoplusia ni (Hübner), and green garden looper, Chrysodeixis eriosoma (Doubleday). An understanding of the mechanisms that explain the movement of Lepidoptera within vegetationally diverse agroecosystems would be useful for on-farm implementation of this technique. Problems inherent in field experiments that compare the effects of different cropping systems on mobile insect populations are also discussed.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Diamondback moth numbers were significantly higher on trap cropped Scorpio on key dates.
- Treatment
- trap-cropped Scorpioe0
- Interactor
- Plutella xylostella
Plutella xylostellae0pest - Outcome
- diamondback mothe0
- Direction
- highere0
- Comparator
- monoculture Scorpioe0
ScorpioOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the 2 most economically important lepidopteran pests in the trials, diamondback moth, Plutella xylostella (L.), and imported cabbageworm, Pieris rapae (L.), significantly higher numbers were found on trap-cropped Scorpio than on monoculture Scorpio for certain key sampling dates.”
Claim · model-written summary
Imported cabbageworm numbers were significantly higher on trap cropped Scorpio on key dates.
- Treatment
- trap-cropped Scorpioe0
- Interactor
- Pieris rapae
Pieris rapaee0pest - Outcome
- imported cabbageworme0
- Direction
- highere0
- Comparator
- monoculture Scorpioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the 2 most economically important lepidopteran pests in the trials, diamondback moth, Plutella xylostella (L.), and imported cabbageworm, Pieris rapae (L.), significantly higher numbers were found on trap-cropped Scorpio than on monoculture Scorpio for certain key sampling dates.”
Claim · model-written summary
Plutella xylostella numbers were higher on trap crops than trap cropped Scorpio on key dates.
- Interactor
- Plutella xylostellaPlutella xylostellae0pest
- Outcome
- Numbers of Plutella xylostellae0
- Direction
- highere0
- Comparator
- trap-cropped Scorpioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Numbers of Plutella xylostella were higher on the trap crops than on trap-cropped Scorpio for certain key dates.”
Claim · model-written summary
Indian mustard and Tastie cabbage attracted pests, with contamination of adjacent Scorpio.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Indian mustard and Tastie cabbage acted effectively as attractants, but through an undetermined mechanism contamination of the adjacent Scorpio crop occurred.”
Claim · model-written summary
Yield did not significantly differ between monoculture and trap cropped Scorpio.
- Treatment
- trap-cropped Scorpioe0
- Outcome
- yield or marketabilitye0
- Direction
- no significant differencese0
- Comparator
- monoculture Scorpioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in yield or marketability between monoculture Scorpio and trap-cropped Scorpio.”
Claim · model-written summary
Indian mustard and Tastie cabbage had potential as trap crops for three additional pests.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Interactor
- Hellula undalis
.jpg?width=60)
Hellula undalise0pest - Outcome
- potential for use as trap cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Indian mustard and Tastie cabbage show potential for use as trap crops for Hellula undalis (F.), cabbage looper, Trichoplusia ni (Hübner), and green garden looper, Chrysodeixis eriosoma (Doubleday).”