Abstract
Chickpea pod borer (Helicoverpa armigera) is a major insect pest constraining chickpea production in Tigray, northern Ethiopia, as there is no recommended management option in the area. Therefore the present study was conducted to assess the efficacy of insecticides and to determine the critical growth stage of the crop for effective spray at Axum Agricultural Research Center. Results indicated that in laboratory profit 72% EC (profenofos), abema 3% EC (abamectin 20 g/L + emamectin benzoit 10 g/L), perfecto (imedachloprid + lambda-cyhalothrin) and hamectin (abamectin) reduced the number of larvae by 75, 55, 44 and 34%; 86, 82, 65, 56% and 83, 83, 66 and 83% at 24, 48 and 72 h after spray, respectively. Similarly abema 3%EC and profit (Profenofos) 72% EC were the most effective insecticides to give high mortality of pod borer on chickpea under field conditions. These insecticides reduced the number of larva per plant by 51 to 56.7% five days after spray. The number of damaged pods per plant was very low in both insecticides (0.91 and 1.05) but on the untreated check 3.05. The highest yield was also obtained from chickpea treated with abema 3%EC at podding stage (23.92 qt/ha). Comparatively the most effective insecticides against pod borer were abema and profit and the best application time were at podding stage of the crop. Thus chickpea growers in the area should prefer these insecticides for better pod borer management. Key words: Chickpea, Helicoverpa armigera, insecticides, growth stage.
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Claims 7
Claim · model-written summary
Profit reduced laboratory larval numbers by 75%, 86%, and 83% at 24, 48, and 72 hours.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- profit 72% ECe0
- Outcome
- number of larvaee0
- Direction
- reducede0
- Value
- 75e0
- Qualifier
- 24, 48 and 72 h after spraye0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“profit 72% EC (profenofos), abema 3% EC (abamectin 20 g/L + emamectin benzoit 10 g/L), perfecto (imedachloprid + lambda-cyhalothrin) and hamectin (abamectin) reduced the number of larvae by 75, 55, 44 and 34%; 86, 82, 65, 56% and 83, 83, 66 and 83% at 24, 48 and 72 h after spray, respectively”
t0“chickpea”
Claim · model-written summary
Abema and profit gave high field pod-borer mortality.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- abema 3%EC and profit (Profenofos) 72% ECe0
- Interactor
- pod borere0pest
- Outcome
- mortality of pod borere0
- Direction
- highe0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abema 3%EC and profit (Profenofos) 72% EC were the most effective insecticides to give high mortality of pod borer on chickpea under field conditions”
Claim · model-written summary
The effective insecticides reduced larvae per plant by 51 to 56.7% five days after spraying.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- These insecticidese0
- Outcome
- number of larva per plante0
- Direction
- reducede0
- Value
- 51 to 56.7%e0
- Qualifier
- five days after spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These insecticides reduced the number of larva per plant by 51 to 56.7% five days after spray”
t0“chickpea”
Claim · model-written summary
Abema treatment gave 0.91 damaged pods per plant versus 3.05 untreated.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- both insecticidese0
- Outcome
- number of damaged pods per plante0
- Direction
- very lowe0
- Value
- 0.91e0
- Qualifier
- 3.05e0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of damaged pods per plant was very low in both insecticides (0.91 and 1.05) but on the untreated check 3.05”
t0“chickpea”
Claim · model-written summary
Profit treatment gave 1.05 damaged pods per plant versus 3.05 untreated.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- both insecticidese0
- Outcome
- number of damaged pods per plante0
- Direction
- very lowe0
- Value
- 1.05e0
- Qualifier
- 3.05e0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of damaged pods per plant was very low in both insecticides (0.91 and 1.05) but on the untreated check 3.05”
t0“chickpea”
Claim · model-written summary
Abema at podding gave the highest chickpea yield, 23.92 qt/ha.
- Taxon
- chickpeaCicer arietinume0
- Organ / stage
- podding stagee0
- Treatment
- abema 3%ECe0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 23.92 qt/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield was also obtained from chickpea treated with abema 3%EC at podding stage (23.92 qt/ha)”
Claim · model-written summary
The authors recommend abema and profit at the podding stage for pod-borer management.
- Taxon
- chickpeaCicer arietinumt0
- Organ / stage
- podding stagee0
- Treatment
- abema and profite0
- Interactor
- pod borere0pest
- Outcome
- best application timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most effective insecticides against pod borer were abema and profit and the best application time were at podding stage of the crop”
t0“chickpea”
The same questions in other papers
insecticide · yield · Cicer arietinum (chickpea)Positive and negative results
9 papers in the same direction as this paper · 2 reporting no difference from an alternative
- positive
- positive
- no effect
8 papers more in this group
See all 12 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.