Evidence map›Paper›PMID 42010016›Full record

ArticleScientific reports2026

Efficacy of homemade botanical insecticides against diamondback moth (Plutella xylostella) and cabbage aphids (Brevicoryne brassicae) on Brassica crops.

Nancy Munyoki, Edward N Karanja, Komivi S Akutse, Noah Adamtey, Martha Musyoka, Komi K M Fiaboe, David Bautze, Edwin Nderitu, Felix Matheri, Dubois Thomas and 2 more

Abstract read
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In one paragraph

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.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Nancy MunyokiInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Edward N KaranjaInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya. ekaranja@icipe.org.
Komivi S AkutseInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Noah AdamteyInternational Water Management Institute (IWMI), PMB CT 112, Mailing Address PMB CT 112 Cantonments, Accra, Ghana.
Martha MusyokaInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Komi K M FiaboeInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
David BautzeResearch Institute of Organic Agriculture (FiBL), Ackerstrasse 775, Frick, CH-5070, Switzerland.
Edwin NderituInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Felix MatheriInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Dubois ThomasInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Milka KiboiResearch Institute of Organic Agriculture (FiBL), Ackerstrasse 775, Frick, CH-5070, Switzerland.
Chrysantus M TangaInternational Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

Funding

Biovision Foundation 1040Coop Sustainability Fund 1040Liechtenstein Development Service (LED) 1040Swiss Agency for Development and Cooperation (SDC) 1040
6 · The paper itself

Abstract

The growing need for accessible alternatives to synthetic insecticides has renewed interest in farmer-made botanical formulations for pest management. This study evaluated the efficacy of selected homemade botanical insecticides against diamondback moth (Plutella xylostella) and cabbage aphid (Brevicoryne brassicae) on cabbage (Brassica oleracea var. capitata) and kale (B. oleracea var. acephala) under laboratory and semi-field conditions. Three homemade formulations were assessed: a one-day-old multi-plant extract with neem (Azadirachta indica; PE + N), a one-day-old extract without neem (PE), and a fourteen-day-old, fermented extract without neem (PE14). These were compared with three commercial botanical products. In replicated leaf- and plant-based bioassays, neem-based treatments (PE + N and Nimbecidine) consistently caused higher pest mortality than non-neem formulations. Both treatments achieved over 50% mortality of P. xylostella and B. brassicae at higher concentrations, with shorter median lethal times (LT

Indexed as

AphidsBrassicaInsecticidesMothsPlant ExtractsAnimalsInsecticidesPlant ExtractsBotanical insecticidesBrevicoryne brassicaeLethal concentrationLethal timePlutella xylostellaSmallholder farming

Identifiers

PMID42010016
PMCPMC13265947

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.