Abstract
The two-spotted spider mite (Tetranychus urticae) is a significant pest affecting tomato production in Ethiopia, leading to substantial yield losses and economic challenges for farmers. This study evaluated the efficacy of seven widely used chemical pesticides compared to an untreated control for controlling T. urticae infestations and their impacts on tomatoes. Field experiments were conducted during the 2021 and 2022 cropping seasons at Melkassa Agricultural Research Center using a randomized complete block design with three replications. Pesticides were applied at recommended rates, and reductions in mite populations (egg, nymph, adult) on eight treatments were evaluated using the percentage reduction over control (PROC), and mean separations with ANOVA on yield were done. Results revealed that Cyenopyrafen and Abamectin were the most effective treatments, achieving PROC values of 63.2% and 60.1%, respectively, in 2021, with corresponding marketable yield outputs of 16.5 and 15.45 tons/ha. However, efficacy declined across all treatments in the 2022 tomato production season, although Cyenopyrafen and Abamectin maintained their superior performance compared to other treatments. Other treatments, such as Abamectin-emamectin benzoate, exhibited limited effectiveness, with PROC values below 20%. The partial economic analysis highlighted Cyenopyrafen and Abamectin as the most cost-effective options, generating net profits of USD 10,068/ha and USD 9,395/ha, respectively, with high benefit-cost ratios (BCR) of 3.75 and 3.45. These findings underscore the importance of selecting effective pesticides to maximize tomato yields and economic returns. For sustainable production, integrating these chemical controls into an integrated pest management (IPM) strategy is essential. Future studies should focus on resistance monitoring, optimizing application schedules, and assessing environmental impacts on non-target organisms to ensure sustainability in tomato production in Ethiopia.
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Claims 10
Claim · model-written summary
Cyenopyrafen reduced mite populations by 63.2% over control in 2021.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- Cyenopyrafene0
- Interactor
- Tetranychus urticae
.jpg?width=60)
Tetranychus urticaee1pest - Outcome
- PROC valuese0
- Direction
- most effectivee0
- Value
- 63.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Cyenopyrafen and Abamectin were the most effective treatments, achieving PROC values of 63.2% and 60.1%, respectively, in 2021”
t0“Tomato”
e1“two-spotted spider mite (Tetranychus urticae)”
Claim · model-written summary
Abamectin reduced mite populations by 60.1% over control in 2021.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Abamectine0
- Interactor
- Tetranychus urticaeTetranychus urticaee1pest
- Outcome
- PROC valuese0
- Direction
- most effectivee0
- Value
- 60.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin were the most effective treatments, achieving PROC values of 63.2% and 60.1%, respectively, in 2021”
t0“Tomato”
e1“two-spotted spider mite (Tetranychus urticae)”
Claim · model-written summary
Cyenopyrafen produced 16.5 tons/ha marketable yield in 2021.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Cyenopyrafene0
- Outcome
- marketable yield outputse0
- Value
- 16.5 and 15.45 tons/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin were the most effective treatments, achieving PROC values of 63.2% and 60.1%, respectively, in 2021, with corresponding marketable yield outputs of 16.5 and 15.45 tons/ha”
t0“Tomato”
Claim · model-written summary
Abamectin produced 15.45 tons/ha marketable yield in 2021.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Abamectine0
- Outcome
- marketable yield outputse0
- Value
- 16.5 and 15.45 tons/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin were the most effective treatments, achieving PROC values of 63.2% and 60.1%, respectively, in 2021, with corresponding marketable yield outputs of 16.5 and 15.45 tons/ha”
t0“Tomato”
Claim · model-written summary
Pesticide efficacy declined in 2022 across all treatments.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- efficacye0
- Direction
- declinede0
- Qualifier
- 2022 tomato production seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“efficacy declined across all treatments in the 2022 tomato production season”
Claim · model-written summary
Cyenopyrafen and Abamectin remained superior to other treatments in 2022.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- superior performancee0
- Direction
- superiore0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin maintained their superior performance compared to other treatments”
t0“Tomato”
Claim · model-written summary
Abamectin-emamectin benzoate achieved less than 20% population reduction over control.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Abamectin-emamectin benzoatee0
- Outcome
- PROC valuese0
- Direction
- belowe0
- Value
- 20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abamectin-emamectin benzoate, exhibited limited effectiveness, with PROC values below 20%”
t0“Tomato”
Claim · model-written summary
Cyenopyrafen generated USD 10,068/ha net profit and a 3.75 benefit-cost ratio.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Cyenopyrafene0
- Outcome
- net profitse0
- Direction
- most cost-effectivee0
- Value
- USD 10,068/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin as the most cost-effective options, generating net profits of USD 10,068/ha and USD 9,395/ha, respectively, with high benefit-cost ratios (BCR) of 3.75 and 3.45”
t0“Tomato”
Claim · model-written summary
Abamectin generated USD 9,395/ha net profit.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Abamectine0
- Outcome
- net profitse0
- Direction
- most cost-effectivee0
- Value
- USD 9,395/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cyenopyrafen and Abamectin as the most cost-effective options, generating net profits of USD 10,068/ha and USD 9,395/ha, respectively”
t0“Tomato”
Claim · model-written summary
The authors recommend integrating chemical controls into IPM for sustainable production.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- integrating these chemical controls into an integrated pest management (IPM) strategye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For sustainable production, integrating these chemical controls into an integrated pest management (IPM) strategy is essential.”
t0“Tomato”
The same questions in other papers
abamectin · Tetranychus urticae · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.