Insects · 2025
Extract of Tangerine Peel as a Botanical Insecticide Candidate for Smallholder Potato Cultivation.
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Pais-Chanfrau José-Manuel, Quiñonez-Montaño Lisbeth J, Núñez-Pérez Jimmy, Prado-Beltrán Julia K, Cañarejo-Antamba Magali, Burbano-García Jhomaira L, Chiliquinga-Quispe Andrea J, Rodríguez Cabrera Hortensia M
Аннотация
BACKGROUND: Contemporary agriculture heavily relies on synthetic chemicals to ensure high yields and food security; however, their overuse has led to health issues and the development of pesticide resistance in pests. Researchers are now exploring natural, eco-friendly alternatives for pest control.
METHODS: This study evaluated two ethanol-based formulations (1.25% and 2.50%, v/v) derived from the tangerine peel (Citrus reticulata L. var. Clementina) against conventional chemical treatments and an untreated control group in the cultivation of potatoes (Solanum tuberosum L. var. Capiro). A randomised block design was used, with three blocks per treatment containing 45 plants. The experiment was conducted during the wet season (February-April 2023).
RESULTS: According to visual inspections and yellow traps, following weekly application from days 30 to 105 post-planting to monitor pest (e.g., Frankliniella occidentalis, Aphididae) and beneficial insect (e.g., Coccinellidae, Apis mellifera) populations, the 2.50% formulation performed similarly to chemical treatments against pests, whilst being harmless to beneficial insects. Post-harvest analysis showed that the formulations achieved 73% of conventional yields, with comparable tuber damage and levels of Premnotrypes vorax larvae.
CONCLUSIONS: Toxicological tests confirmed the eco-friendliness of the formulations, making them suitable for small-scale Andean 'chakras' in organic farming and honey production, without the use of chemicals.
METHODS: This study evaluated two ethanol-based formulations (1.25% and 2.50%, v/v) derived from the tangerine peel (Citrus reticulata L. var. Clementina) against conventional chemical treatments and an untreated control group in the cultivation of potatoes (Solanum tuberosum L. var. Capiro). A randomised block design was used, with three blocks per treatment containing 45 plants. The experiment was conducted during the wet season (February-April 2023).
RESULTS: According to visual inspections and yellow traps, following weekly application from days 30 to 105 post-planting to monitor pest (e.g., Frankliniella occidentalis, Aphididae) and beneficial insect (e.g., Coccinellidae, Apis mellifera) populations, the 2.50% formulation performed similarly to chemical treatments against pests, whilst being harmless to beneficial insects. Post-harvest analysis showed that the formulations achieved 73% of conventional yields, with comparable tuber damage and levels of Premnotrypes vorax larvae.
CONCLUSIONS: Toxicological tests confirmed the eco-friendliness of the formulations, making them suitable for small-scale Andean 'chakras' in organic farming and honey production, without the use of chemicals.