SynthesisMedical and veterinary entomology2026
Shrubs and trees as natural insect protection for grazing animals in Switzerland and the alpine region: A systematic review of in vitro, in vivo and clinical trials.
Synthesis in Medical and veterinary entomology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled 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.
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
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Shrubs and trees as natural insect protection for grazing animals in Switzerland and the alpine region: A systematic review of in vitro, in vivo and clinical trials.Medical and veterinary entomology · 2026Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Insect infestation in grazing animals is an increasing problem due to factors such as global warming and increasing resistance to insecticides, which have a direct impact on animal health and welfare. According to reports from farmers, observations in zoopharmacognosy and the ingredients of commercial insecticides, various indigenous trees and shrubs with an insecticidal or repellent effect grow or can be planted on pastures. The aim of our systematic review (designed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement) was to identify perennial woody plants from Switzerland and the wider alpine region with a potential to affect the most common dipteran insects that are relevant for grazing animals. Based on a preselection of 399 plants, 114 publications including 403 laboratory and 10 outdoor experiments were found. Essential oils were evaluated most frequently (326 experiments), followed by extracts (118 experiments). Most frequently investigated were the aromatic herbs (Lamiales: Lamiaceae) Thymus vulgaris L., Rosmarinus officinalis Spenner, Lavandula angustifolia Miller, Salvia officinalis L., and the trees Punica granatum L. (Myrtales: Lythraceae), Laurus nobilis L. (Laurales: Lauraceae), Pinus pinea L. (Pinales: Pinaceae), Juniperus communis L. (Cupressales: Cupressaceae), Olea europaea L. (Lamiales: Oleaceae) and Alnus glutinosa (L.) Gaertner (Fagales: Betulaceae). These were studied for their effect (repellent, larvicidal, adulticidal) on mosquitoes (Diptera: Culicidae; Aedes spp., Anopheles spp., Culex spp.), and flies (Musca domestica L. (Diptera: Muscidae), and Lucilia sericata Meigen (Diptera: Calliphoridae)). The results concerning repellent or insecticidal effects provide valuable information about which trees and shrubs should be tested in future outdoor studies involving grazing animals.
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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.