ArticleScientific reports2026
Comparative field efficacy of synthetic insecticides and plant extracts against Tuta absoluta (Lepidoptera: Gelechiidae) in Lubumbashi, DR Congo.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The invasive tomato leafminer, Tuta absoluta (Meyrick), is a very destructive pest that poses a major threat to tomato (Solanum lycopersicum L.) production in the Democratic Republic of Congo (DRC), causing extensive yield losses through larval feeding on leaves, stems, and fruits. Chemical insecticides remain the primary control method, but resistance development, biodiversity loss and environmental concerns necessitate alternative strategies. This study aimed at evaluating the efficacy of synthetic and botanical insecticides against T. absoluta during two consecutive cropping seasons 2023-2024 in Lubumbashi, DRC, under both dry and rainy season conditions. Two tomato seedling varieties (Tanya F1 and Tovi Star F1) were treated with four synthetic insecticides (Dudu acelamectin 5% EC, cypermethrin 200 EC, lambda-cyhalothrin 50 EC and Occasion Star 200SC) and two botanical treatments (Tephrosia vogelii extract and Nimbecidine) at the recommended doses in a randomized complete block design. Pest incidence, larval density, leaf damage, and yield were assessed over multiple intervals. Results showed that synthetic insecticides, particularly Dudu acelamectin 5% EC, lambda-cyhalothrin 50 EC, and Occasion Star 200SC, significantly reduced T. absoluta larval infestations compared to cypermethrin 200 EC, which failed to control the pest due to suspected potential resistance. Botanical insecticides were also proved effective, with T. vogelii extract reducing leaf damage by 48% and Nimbecidine by 38%. The Tovi Star F1 variety exhibited inherent resistance, with lower pest incidence and higher yields than Tanya F1. Yield losses were strongly correlated with pest incidence and larval density, emphasizing the need for timely interventions. These findings highlight the potential of integrating synthetic and botanical insecticides with resistant tomato varieties for sustainable T. absoluta management in Lubumbashi. Future research should explore long-term resistance monitoring, cost-benefit analyses for smallholder farmers, and synergetic combinations of biopesticides to enhance efficacy while minimizing environmental impacts.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.