Abstract
Biological control is one of the best options for the sustainable management of the invasive maize pest Spodoptera frugiperda in Africa. However, there is limited knowledge of the efficacy of native natural enemies of S. frugiperda and their potential use in integrated pest management. The endoparasitoid wasp Coccygidium luteum is one of the natural enemies of S. frugiperda in Africa. This study assessed, under laboratory conditions, the effect of C. luteum on the leaf consumption rate of its host. Fifty first instar S. frugiperda larvae were exposed to C. luteum for oviposition and the maize leaf consumption rate of parasitized larvae was assessed and compared to 50 unparasitized larvae from the same cohort. Coccygidium luteum completed a generation, from egg to adult emergence, in 16.7 days. The leaf consumption rate of parasitized S. frugiperda larvae declined gradually compared to unparasitized larvae and the overall consumption reduction by parasitized S. frugiperda larvae was 89%. Our findings show that C. luteum could reduce damage caused by S. frugiperda to maize farms but, prior to its use in biological control programmes, further studies are needed to assess potential parasitism rates in field conditions and develop a cost-effective mass production system.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 4
Claim · model-written summary
Coccygidium luteum completed its egg to adult generation in 16.7 days.
- Interactor
- Coccygidium luteumCoccygidium luteume0biocontrol_agent
- Outcome
- a generation, from egg to adult emergencee0
- Value
- 16.7 dayse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Coccygidium luteum completed a generation, from egg to adult emergence, in 16.7 days”
e1“maize leaf consumption rate”
Claim · model-written summary
Parasitized fall armyworm larvae consumed 89% less maize leaf material overall than unparasitized larvae.
- Treatment
- parasitized S. frugiperda larvaee0
- Interactor
- S. frugiperda
.jpg?width=60)
Spodoptera frugiperdae0pest - Second interactor
- Coccygidium luteumCoccygidium luteumt0biocontrol_agent
- Outcome
- leaf consumption ratee0
- Direction
- declined graduallye0
- Value
- 89%e0
- Comparator
- unparasitized larvaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The leaf consumption rate of parasitized S. frugiperda larvae declined gradually compared to unparasitized larvae and the overall consumption reduction by parasitized S. frugiperda larvae was 89%”
e1“maize leaf consumption rate of parasitized larvae”
t0“Coccygidium luteum”
Claim · model-written summary
The authors inferred that Coccygidium luteum could reduce fall armyworm damage on maize farms.
- Interactor
- S. frugiperdaSpodoptera frugiperdae0pest
- Second interactor
- C. luteumCoccygidium luteume0biocontrol_agent
- Outcome
- damage caused by S. frugiperdae0
- Direction
- reducee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. luteum could reduce damage caused by S. frugiperda to maize farms”
Claim · model-written summary
The authors recommend field parasitism studies and a cost effective mass production system before biological control use.
- Outcome
- further studies are needed to assess potential parasitism rates in field conditions and develop a cost-effective mass production systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prior to its use in biological control programmes, further studies are needed to assess potential parasitism rates in field conditions and develop a cost-effective mass production system”
e1“maize farms”
The same questions in other papers
Spodoptera frugiperda · pest · Zea mays (maize)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 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.