Abstract
Novel strategies for Plutella xylostella management in cabbage need to be evaluated in order to increase its control and reduce adverse impacts on the environment. Thus, we evaluated the combined effects of the cabbage cultivars Ruby Ball, Matsukase Sakata, and Sessenta Dias, the aqueous extracts of Azadirachta indica, Aspidosperma pyrifolium, and Melia azedarach, and the parasitoid Oomyzus sokolowskii on P. xylostella control and selectivity to the parasitoid. This study attempted to give insights to further elaborate an IPM strategy for cabbage crop. The first assay recorded P. xylostella mortality, and the second assay recorded the number of parasitoids emerged from P. xylostella pupa and O. sokolowskii immature development in two successive generations. Cultivar Ruby Ball treated with A. pyrifolium extract increased P. xylostella mortality over 85%. Parasitism by O. sokolowskii combined with A. pyrifolium or A. indica extracts provided up to 95% mortality, regardless of the cabbage cultivar. Cultivar Matsukase Sakata treated with M. azedarach or A. indica extracts affected adversely O. sokolowskii development. The number of parasitoids emerged from P. xylostella pupa was increased from the first to the second generation on the resistant cvs. Ruby Ball and Matsukase Sakata. Further experiments are encouraged to confirm in greenhouse and field the high mortality rates of P. xylostella and selectivity to O. sokolowskii, in order to elaborate an efficient IPM program for cabbage against the diamondback moth. Key words: Brassica oleraceae var. capitata, diamondback moth, host plant resistance, integrated pest management, Oomyzus sokolowskii, plant extracts.
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Claims 7
Claim · model-written summary
Ruby Ball with A. pyrifolium extract increased P. xylostella mortality above 85%.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Material
- Ruby Balle0
- Treatment
- A. pyrifolium extracte0
- Interactor
- P. xylostellae0pest
- Outcome
- P. xylostella mortalitye0
- Direction
- increasede0
- Value
- 85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar Ruby Ball treated with A. pyrifolium extract increased P. xylostella mortality over 85%”
t0“cabbage”
Claim · model-written summary
O. sokolowskii with A. pyrifolium extract produced up to 95% P. xylostella mortality across cultivars.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- O. sokolowskii combined with A. pyrifoliume0
- Interactor
- O. sokolowskiiOomyzus sokolowskiie0biocontrol_agent
- Outcome
- mortalitye0
- Direction
- increaseinferrede0
- Value
- 95%e0
- Qualifier
- regardless of the cabbage cultivare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parasitism by O. sokolowskii combined with A. pyrifolium or A. indica extracts provided up to 95% mortality, regardless of the cabbage cultivar”
Claim · model-written summary
O. sokolowskii with A. indica extract produced up to 95% P. xylostella mortality across cultivars.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Treatment
- A. indica extractse0
- Interactor
- O. sokolowskiiOomyzus sokolowskiie0biocontrol_agent
- Outcome
- mortalitye0
- Direction
- increaseinferrede0
- Value
- 95%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parasitism by O. sokolowskii combined with A. pyrifolium or A. indica extracts provided up to 95% mortality, regardless of the cabbage cultivar”
Claim · model-written summary
M. azedarach extract on Matsukase Sakata adversely affected O. sokolowskii development.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Material
- Matsukase Sakatae0
- Treatment
- M. azedarache0
- Interactor
- O. sokolowskiiOomyzus sokolowskiie0biocontrol_agent
- Outcome
- O. sokolowskii developmente0
- Direction
- affected adverselye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar Matsukase Sakata treated with M. azedarach or A. indica extracts affected adversely O. sokolowskii development”
t0“cabbage”
Claim · model-written summary
A. indica extract on Matsukase Sakata adversely affected O. sokolowskii development.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Material
- Matsukase Sakatae0
- Treatment
- A. indica extractse0
- Interactor
- O. sokolowskiiOomyzus sokolowskiie0biocontrol_agent
- Outcome
- O. sokolowskii developmente0
- Direction
- affected adverselye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar Matsukase Sakata treated with M. azedarach or A. indica extracts affected adversely O. sokolowskii development”
t0“cabbage”
Claim · model-written summary
Parasitoid emergence increased from the first to second generation on Ruby Ball.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Material
- Ruby Balle0
- Interactor
- P. xylostellae0pest
- Second interactor
- parasitoidse0biocontrol_agent
- Outcome
- number of parasitoids emerged from P. xylostella pupae0
- Direction
- increasede0
- Comparator
- firste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of parasitoids emerged from P. xylostella pupa was increased from the first to the second generation on the resistant cvs. Ruby Ball and Matsukase Sakata”
t0“cabbage”
Claim · model-written summary
Parasitoid emergence increased from the first to second generation on Matsukase Sakata.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Material
- Matsukase Sakatae0
- Interactor
- P. xylostellae0pest
- Outcome
- number of parasitoids emerged from P. xylostella pupae0
- Direction
- increasede0
- Comparator
- firste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of parasitoids emerged from P. xylostella pupa was increased from the first to the second generation on the resistant cvs. Ruby Ball and Matsukase Sakata”
t0“cabbage”
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botanical · pest · Brassica oleracea (wild cabbage)Positive and negative results
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- no effect
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