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Aqueous botanical extracts, via different extraction methods, for control of the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)

Journal of Plant Diseases and Protection, ISSN: 1861-3837, Vol: 131, Issue: 1, Page: 255-263
2024
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Article Description

Diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), is a vegetable pest of the genus Brassica worldwide. The development of new, safer bio-insecticides with less negative impacts on human health, flora, fauna, and specific to the target is needed to combat this pest, particularly in small-scale organic agriculture. In this sense, the efficiency of 7 plant species in the form of aqueous botanical extracts was evaluated regarding the bio-insecticide effect, using three extraction methods (orbital agitation, decoction, and infusion). There was a difference between the treatments, highlighting the decoction of Couroupita guianensis, which presented the highest efficiency (39%) for second-instar larvae of P. xylostella, followed by infusions of Codiaeum variegatum and Ruta graveolens, both with a 29% efficiency rate. The 3 extraction methods were statistically different, with decoction and orbital agitation presenting the best results.

Bibliographic Details

Hector Alonso Escobar-Garcia; Vinícius Ferraz Nascimento; Márcio Aparecido De Melo; Dagmara Gomes Ramalho; Sergio Antonio De Bortoli

Springer Science and Business Media LLC

Agricultural and Biological Sciences

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