Evaluación de la actividad insecticida de extractos acuosos de plantas de la familia Myrtaceae sobre Diaphorina citri Kuwayama (psílido asiático)
The mortality caused by aqueous extracts obtained by decoction of six endemic and native plants of the Myrtaceae family were evaluated in young shoots of Persian lime (Citrus latifolia L) with nymphs of Diaphorina citri (Kuwayama), one of the pests most feared by producers. and in the citrus industry as the cause of great damage because it is the vector of the bacterium Candidatus Liberibacter asiaticus (CLas) that causes Huanglongbing (HLB), a disease that affects various species of plants of the Citrus genus. The 2.5% (w / v) aqueous extracts of Pimenta haitiensis (Urb.) Landrum, Pimenta racemosa (Mill.) J.W. Moore var. Grisea (Kiaersk.) Fosb, Myrcianthes montana (Aubl.) C. Nelson, Pimenta ozua (Urb & Ekman) Burret, Eugenia confusa DC, Myrcianthes fragans (Sw.) McVaugh and Eugenia lindahlii Urb. & Ekman, were evaluated for their activity insecticide; Likewise, 2% (v / v) cinnamon and garlic extracts were used as a reference, which is used in traditional practices for the control of insects-pests in citrus farms. Two controls were also included, one absolute without any application and the other only with the dispersant Tween 80 at 0.05% (v / v). Evaluations were carried out 24 and 72 hours after applying the treatments. The extracts that showed to be effective and that caused mortality, after 72 hours, on the Asian psyllid were: P. ozua (23.82%) P. racemosa var. grisea (34.57%), and E. lindahlii (57.91%). Under the same conditions, the garlic and cinnamon preparation (2%, v / v) used was 67% effective.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Sociedad Dominicana de Investigadores Agropecuarios y Forestales
2021
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| Online Access: | https://www.sodiaf.org.do/apf/index.php/apf/article/view/112 |
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| Summary: | The mortality caused by aqueous extracts obtained by decoction of six endemic and native plants of the Myrtaceae family were evaluated in young shoots of Persian lime (Citrus latifolia L) with nymphs of Diaphorina citri (Kuwayama), one of the pests most feared by producers. and in the citrus industry as the cause of great damage because it is the vector of the bacterium Candidatus Liberibacter asiaticus (CLas) that causes Huanglongbing (HLB), a disease that affects various species of plants of the Citrus genus. The 2.5% (w / v) aqueous extracts of Pimenta haitiensis (Urb.) Landrum, Pimenta racemosa (Mill.) J.W. Moore var. Grisea (Kiaersk.) Fosb, Myrcianthes montana (Aubl.) C. Nelson, Pimenta ozua (Urb & Ekman) Burret, Eugenia confusa DC, Myrcianthes fragans (Sw.) McVaugh and Eugenia lindahlii Urb. & Ekman, were evaluated for their activity insecticide; Likewise, 2% (v / v) cinnamon and garlic extracts were used as a reference, which is used in traditional practices for the control of insects-pests in citrus farms. Two controls were also included, one absolute without any application and the other only with the dispersant Tween 80 at 0.05% (v / v). Evaluations were carried out 24 and 72 hours after applying the treatments. The extracts that showed to be effective and that caused mortality, after 72 hours, on the Asian psyllid were: P. ozua (23.82%) P. racemosa var. grisea (34.57%), and E. lindahlii (57.91%). Under the same conditions, the garlic and cinnamon preparation (2%, v / v) used was 67% effective. |
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