Abstract
Abstract Laboratory experiments were carried out to investigate the efficacy of crude stem extracts of forest anchomanes, Anchomanes difformis (P. Beauv.) a plant occurring in West African forests, against the pulse beetle Callosobruchus maculatus (Fabricius). Crude stem extracts at 3% concentration showed high contact toxicity to adult beetles within 24 h after application, while it was moderately toxic to the beetles at the lowest (1%) concentration. At the highest application rate, the plant extract provided good protection to grains stored for 90 days. Grain viability and water absorption capacity were not affected by treatments with ethanol extracts of A. difformis. The significance of these findings is discussed in relation to biopesticide‐means of controlling cowpea bruchids.
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Claims 4
Claim · model-written summary
At 3% concentration, Anchomanes difformis crude stem extract had high contact toxicity to adult Callosobruchus maculatus within 24 h.
- Taxon
- Anchomanes difformis
Anchomanes difformise1 - Treatment
- Crude stem extracts at 3% concentratione0
- Interactor
- Callosobruchus maculatus
Callosobruchus maculatuse1pest - Outcome
- high contact toxicity to adult beetlese0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crude stem extracts at 3% concentration showed high contact toxicity to adult beetles within 24 h after application”
e1“forest anchomanes, Anchomanes difformis (P. Beauv.) a plant occurring in West African forests, against the pulse beetle Callosobruchus maculatus (Fabricius)”
t0“against pulse beetle Callosobruchus maculatus”
Claim · model-written summary
At 1% concentration, the crude stem extract was moderately toxic to the beetles.
- Taxon
- Anchomanes difformisAnchomanes difformise1
- Treatment
- lowest (1%) concentratione0
- Interactor
- Callosobruchus maculatusCallosobruchus maculatuse1pest
- Outcome
- moderately toxic to the beetlese0
- Direction
- moderately toxice0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was moderately toxic to the beetles at the lowest (1%) concentration”
e1“forest anchomanes, Anchomanes difformis (P. Beauv.) a plant occurring in West African forests, against the pulse beetle Callosobruchus maculatus (Fabricius)”
Claim · model-written summary
The highest application rate protected stored grains for 90 days.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- highest application ratee0
- Outcome
- good protection to grainse0
- Direction
- good protectione0
- Qualifier
- stored for 90 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest application rate, the plant extract provided good protection to grains stored for 90 days”
e1“controlling cowpea bruchids”
Claim · model-written summary
Ethanol extract treatments did not affect grain viability or water absorption capacity.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- treatments with ethanol extracts of A. difformise0
- Outcome
- Grain viability and water absorption capacitye0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain viability and water absorption capacity were not affected by treatments with ethanol extracts of A. difformis”
e1“controlling cowpea bruchids”
The same questions in other papers
botanical · growth · Vigna unguiculata (cowpea)Positive and negative results
44 papers in the same direction as this paper · 60 in the opposite direction
- no effect
- positive
- positive
101 papers more in this group
See all 105 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.