Abstract
An evaluation of fresh extracts from three locally available pesticidal plants in Central Uganda was carried out against two important cabbage insect pests in the field in order to assess their potency for pesticidal application. This followed the farmers’ view that these plants could have pesticidal features as they had been observed to protect leafy crops against pests. Results suggest that Euphorbia tirucalli latex could reduce infestation of Brevicoryne brassicae below economic threshold levels. Extracts from Jatropha curcas and Phytolacca dodecandra likewise reduced B. brassicae levels but could not do so to required threshold levels. The same extracts were evaluated against diamondback moth Plutella xylostella but none was able to cause reduction of the moth larvae to economic threshold level. Only E. tirucalli latex caused reasonable management. It was concluded that E. tirucalli latex could be used as a management measure against B. brassicae and a contributory factor for management of P. xylostella infestations.
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Claims 7
Claim · model-written summary
Euphorbia tirucalli latex reduced Brevicoryne brassicae infestation below the economic threshold.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Treatment
- Euphorbia tirucalli latexe0
- Interactor
- Brevicoryne brassicae
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Brevicoryne brassicaee0pest - Outcome
- infestation of Brevicoryne brassicaee0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Euphorbia tirucalli latex could reduce infestation of Brevicoryne brassicae below economic threshold levels”
t0“cabbage insect pests”
Claim · model-written summary
Jatropha curcas extract reduced B. brassicae levels without reaching the required threshold.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Jatropha curcase0
- Interactor
- B. brassicaeBrevicoryne brassicaee0pest
- Outcome
- B. brassicae levelse0
- Direction
- reducede0
- Qualifier
- could not do so to required threshold levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts from Jatropha curcas and Phytolacca dodecandra likewise reduced B. brassicae levels but could not do so to required threshold levels”
t0“cabbage insect pests”
Claim · model-written summary
Phytolacca dodecandra extract reduced B. brassicae levels without reaching the required threshold.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Phytolacca dodecandrae0
- Interactor
- B. brassicaeBrevicoryne brassicaee0pest
- Outcome
- B. brassicae levelse0
- Direction
- reducede0
- Qualifier
- could not do so to required threshold levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts from Jatropha curcas and Phytolacca dodecandra likewise reduced B. brassicae levels but could not do so to required threshold levels”
t0“cabbage insect pests”
Claim · model-written summary
None of the extracts reduced Plutella xylostella larvae to the economic threshold.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- The same extractse0
- Interactor
- Plutella xylostella
Plutella xylostellae0pest - Outcome
- moth larvaee0
- Direction
- none was able to cause reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same extracts were evaluated against diamondback moth Plutella xylostella but none was able to cause reduction of the moth larvae to economic threshold level”
t0“cabbage insect pests”
Claim · model-written summary
E. tirucalli latex gave reasonable management of Plutella xylostella.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- E. tirucalli latexe0
- Interactor
- Plutella xylostellaPlutella xylostellae1pest
- Outcome
- reasonable managemente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only E. tirucalli latex caused reasonable management”
e1“diamondback moth Plutella xylostella”
t0“cabbage insect pests”
Claim · model-written summary
The authors recommend E. tirucalli latex for management of B. brassicae.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- E. tirucalli latexe0
- Interactor
- B. brassicaeBrevicoryne brassicaee0pest
- Outcome
- management measure against B. brassicaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“E. tirucalli latex could be used as a management measure against B. brassicae”
t0“cabbage insect pests”
Claim · model-written summary
The authors recommend E. tirucalli latex as a contributor to management of P. xylostella infestations.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- E. tirucalli latexe0
- Interactor
- P. xylostellae0pest
- Outcome
- a contributory factor for management of P. xylostella infestationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“E. tirucalli latex could be used as a management measure against B. brassicae and a contributory factor for management of P. xylostella infestations”
t0“cabbage insect pests”
The same questions in other papers
Jatropha curcas · Brevicoryne brassicae · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
botanical · Plutella xylostella · Brassica oleracea (wild cabbage)Positive and negative results
2 papers in the same direction as this paper · 23 in the opposite direction
- positive
- positive
- positive
22 papers more in this group
See all 26 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.