Abstract
(J.E. Smith) (Lepidoptera: Noctuidae), is a polyphagous pest native to the Americas. It attacks several crops but in particular causes significant damage to maize, which is a staple crop in Africa. Organic soil amendments have an impact on the physical, chemical, and biological properties of soil, which enhance plant resistance to or tolerance of insect pests and also promote a diverse population of natural enemies of the pest. However, the practices followed for the management of crop residue and animal manure affect their use as organic soil amendments. A field experiment was conducted to evaluate the effect of maize residue and cattle manure incorporation into soil on FAW in the Mana and Omo Nada districts of the Jimma zone, southwest Ethiopia, during the 2018/19 cropping season. Treatment involved three factors: five different levels of maize residue retention (0%, 25%, 50%, 75%, and 100%), different cattle manure storage systems (control, open, steel roof, and grass roof), and two different districts (Mana and Omo Nada). These variables were organized in a randomized complete block design and replicated three times. The infestation and damage ratings were collected from 30 days after planting at 20-day intervals. The results indicated that maize plots with retained crop residue had a significant reduction in FAW infestation compared with plots without maize residue (control) in both study districts. Furthermore, manure-fertilized plants had a lower percentage of FAW infestation when compared with maize plots without cattle manure in both study districts. The lowest severity of FAW infestation was recorded in a plot with 100% of residue incorporated and treated with cattle manure stored under a grass roof in the Mana district. Therefore, conventional tillage with 100% maize residue incorporation and the application of cattle manure stored under a grass roof showed the best result for reducing FAW infestation in maize. However, further studies are important to determine the effect of treatments over seasons and locations on FAW infestation and maize yields.
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
Retained maize residue significantly reduced fall armyworm infestation relative to no residue in both districts.
- Treatment
- retained crop residuee0
- Interactor
- Spodoptera frugiperda
.jpg?width=60)
Spodoptera frugiperdat0pest - Outcome
- FAW infestatione0
- Direction
- reductione0
- Qualifier
- both study districtse0
- Comparator
- plots without maize residue (control)e0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“maize plots with retained crop residue had a significant reduction in FAW infestation compared with plots without maize residue (control) in both study districts.”
t0“Spodoptera frugiperda (J.E. Smith), in maize”
Claim · model-written summary
Cattle manure fertilization lowered fall armyworm infestation relative to no manure in both districts.
- Treatment
- manure-fertilizede0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- FAW infestatione0
- Direction
- lowere0
- Comparator
- maize plots without cattle manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manure-fertilized plants had a lower percentage of FAW infestation when compared with maize plots without cattle manure in both study districts.”
t0“Spodoptera frugiperda (J.E. Smith), in maize”
Claim · model-written summary
Combined 100% residue incorporation and grass-roof-stored manure produced the lowest fall armyworm infestation severity in Mana.
- Treatment
- 100% of residue incorporated and treated with cattle manure stored under a grass roofe0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- severity of FAW infestatione0
- Direction
- loweste0
- Setting
- Mana districte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest severity of FAW infestation was recorded in a plot with 100% of residue incorporated and treated with cattle manure stored under a grass roof in the Mana district.”
t0“Spodoptera frugiperda (J.E. Smith), in maize”
Claim · model-written summary
The authors identify conventional tillage with full residue incorporation and grass-roof-stored manure as the best practice for reducing fall armyworm infestation.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- conventional tillage with 100% maize residue incorporation and the application of cattle manure stored under a grass roofe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional tillage with 100% maize residue incorporation and the application of cattle manure stored under a grass roof showed the best result for reducing FAW infestation in maize.”
t0“Spodoptera frugiperda (J.E. Smith), in maize”
The same questions in other papers
fertilization · Spodoptera frugiperda · Zea mays (maize)Results agree
7 papers in the same direction as this paper
- positive
- 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.