Abstract
Field trials were conducted at two locations in the South Omo zone to evaluate the effect of neem oil concentration and its application frequencies on reducing fall armyworm damage on maize. The experiment was laid out in a randomized complete block design comprising five concentrations of neem oil (NO) and two frequencies and replicated three times. Percentage of infested plants, leaf damage, and maize yield were collected and analyzed. Concentrations and intervals have shown a significant effect on variables such as the percentage of infested plants, leaf damage, the number of cobs per plant, cob length, and grain yield. The lowest rate of plant infestation and leaf damage was recorded from the weekly application of NO 3% next to the application of standard insecticide. Similarly, the highest grain yield was obtained from the weekly application of 3% NO, comparable with the standard insecticide-diazinon. Therefore, due to damage reduction and the highest yield obtained from weekly application of 3% NO, it was recommended as an alternative option to synthetic chemicals. Integration of recommended neem oil concentration with other options is important for fall armyworm management in the maize production system of the study area.
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Claims 4
Claim · model-written summary
Neem concentration and application interval significantly affected infestation, leaf damage, cob traits and grain yield.
- Treatment
- Concentrations and intervalse0
- Interactor
- Fall Armyworm
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Spodoptera frugiperdat1pest - Outcome
- percentage of infested plants, leaf damage, the number of cobs per plante0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Concentrations and intervals have shown a significant effect on variables such as the percentage of infested plants, leaf damage, the number of cobs per plant, cob length, and grain yield”
t0“Maize”
t1“Fall Armyworm”
Claim · model-written summary
Weekly 3% neem oil gave the lowest infestation and leaf damage after standard insecticide.
- Treatment
- weekly application of NO 3%e0
- Interactor
- Fall ArmywormSpodoptera frugiperdat0pest
- Outcome
- plant infestation and leaf damagee0
- Direction
- loweste0
- Comparator
- standard insecticidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest rate of plant infestation and leaf damage was recorded from the weekly application of NO 3% next to the application of standard insecticide”
t0“Fall Armyworm”
t1“Maize”
Claim · model-written summary
Weekly 3% neem oil gave the highest grain yield, comparable to diazinon.
- Treatment
- weekly application of 3% NOe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Comparator
- standard insecticide-diazinone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest grain yield was obtained from the weekly application of 3% NO, comparable with the standard insecticide-diazinon”
t0“Maize”
Claim · model-written summary
The authors recommend weekly 3% neem oil as an alternative to synthetic chemicals and integration with other management options.
- Interactor
- fall armywormSpodoptera frugiperdae0pest
- Outcome
- alternative option to synthetic chemicalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was recommended as an alternative option to synthetic chemicals. Integration of recommended neem oil concentration with other options is important for fall armyworm management in the maize production system of the study area”
t0“Maize”
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- no effect
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See all 11 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.