Population dynamics of aphid vectors and effect on Abaca mosaic epidemics
Issue Date
10-2009
Abstract
Trapped aphids in abaca plantations in Baybay, Leyte were: Aphis gossypii Glover, Aphis spiraecola Patch, Ceratovacuna lanigera Zehntner, Greenidea formosana (Maki), Pentaionia nigronervosa Coquerel, and Toxoptera odinae (van der Goot). Both alates and apterae of P. nigronervosa were found infesting abaca plants in the sites. Abaca mosaic incidence was not correlated with the total number of aphids and number of alate aphids per plant but highly correlated with the number of trapped aphids in the area. Abaca mosaic disease incidence continued to increase progressively as the number of trapped aphids increased. Temperature and relative humidity showed a profound effect on the number of alate aphids per plant and number of trapped aphids, respectively. Temperature appeared to enhance multiplication and wing bud formation of aphids while wind velocity favored aphid take-off and enhanced movements of alate aphids in the abaca plantations. These effects significantly influenced the level of abaca mosaic incidence.
Source or Periodical Title
Philippine Entomologist
ISSN
0048-3753
Volume
23
Issue
2
Page
115-130
Document Type
Article
Frequency
semi-annually
Physical Description
graphs ; tables; illustrations
Language
English
Recommended Citation
Dela Cruz, C. S.; Raymundo, A. D.; Sumalde, A. C.; and Bajet, N. B., "Population dynamics of aphid vectors and effect on Abaca mosaic epidemics" (2009). Journal Article. 5380.
https://www.ukdr.uplb.edu.ph/journal-articles/5380
En – AGROVOC descriptors
APHIDOIDEA; ABACA; PLANT DISEASES; EPIDEMICS; POPULATION DYNAMICS