Escolítidos asociados en árboles Tectona grandis L.f. (teca) enfermos con marchitez vascular y muerte regresiva en la Provincia de Santo Domingo de los Tsáchilas, año 2018.
The objective of this research project was to determine the associated scolytid in teak trees with vascular wilt symptomatology and regressive death in the parish of Santa María del Toachi, Province of Santo Domingo de los Tsáchilas. A fiel tracking was carried out to verify the presence or absence...
Furkejuvvon:
| Váldodahkki: | |
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| Materiálatiipa: | bachelorThesis |
| Giella: | spa |
| Almmustuhtton: |
2018
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| Fáttát: | |
| Liŋkkat: | http://repositorio.uteq.edu.ec/handle/43000/3056 |
| Fáddágilkorat: |
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Lasit fáddágilkoriid | Čoahkkáigeassu: | The objective of this research project was to determine the associated scolytid in teak trees with vascular wilt symptomatology and regressive death in the parish of Santa María del Toachi, Province of Santo Domingo de los Tsáchilas. A fiel tracking was carried out to verify the presence or absence of trees with vascular wilt disease and regressive death. Located three study sites, three rectangular plots of 500 m2. were established. In each plot, the trees were selected with different degrees Sintomatológicos, using the scale established by Avila (13). The trees were selected, the diameter was measured at the height of 1.30 m and then measured the total height. The material was collected, revised and grouped according to its morphological characteristics to carry out the count of the escolítidos by genus and species. The scolytid found were identified based on dichotomous keys, using morphological observation using a estéreomicroscopio. In the three study sites, a total of 991 scolytid were identified, the species found in these teak plantations correspond to Xyleborus sp, Xyleborus ferrugineus, Coptoborus sp, Xyleborus affinis and Xyleborus Volvulus, the largest number of Individuals were registered in study Site 1 with 471 individuals corresponding to 47.53%, followed by site 2 with a total of 309 corresponding to 31.18%, and finally site 3 with 211 corresponding to 21.29%. The species that obtained greater abundance in the study site 1 was Xyleborus sp, with a total of 264 individuals. In Site 2 as the previous one detected greater abundance of the species Xyleborus sp, with a total of 192 individuals. While in Site 3, greater abundance was detected in the species Xyleborus ferrugineus, with a total of 109. |
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