Monitoring adult Spodoptera populations with sex pheromone traps for effective timing of interventions against insect defoliators affecting onion, Allium cepa Linn.
Issue Date
10-2003
Abstract
Field studies were conducted in Bongabon, Nueva Ecija [Philippines] during the 2001 and 2002 dry seasons to evaluate the effectiveness of sex pheromone-baited traps as indicator for timing of insecticide application against onion defoliators, Spodoptera litura (F.) and S. exigua (Hubner) (Lepidoptera:Noctuidae). In both years, peaks in adult trap catches were recorded between 25 and 59 days after transplanting. One to three insecticide applications at 3, 5, and 7 days after peaks in sex pheromone trap catches resulted in crop yield and leaf damage similar to those of weekly-sprayed plots. Plants in all treatments yielded significantly higher than plants in the untreated plots. Use of sex pheromone-baited traps can reduce the number of insecticide applications substantially, from weekly spraying, to only 1-3 application in a cropping season without reducing yields. The use of sex pheromone-baited traps can be a key tool in developing cost-reducing technologies to manage pests in rice-onion vegetable cropping system.
Source or Periodical Title
Philippine Entomologist
ISSN
0048-3753
Volume
17
Issue
2
Page
192
Document Type
Article
Frequency
semi-annually
Language
English
Recommended Citation
Arida, G . S.; Punzal, B. S.; Ravina, C. C.; Gapud, V. P.; Rajotte, E. G.; and Talekar, N. S., "Monitoring adult Spodoptera populations with sex pheromone traps for effective timing of interventions against insect defoliators affecting onion, Allium cepa Linn." (2003). Journal Article. 5749.
https://www.ukdr.uplb.edu.ph/journal-articles/5749
En – AGROVOC descriptors
SPODOPTERA LITURA; SPODOPTERA LITURA; ALLIUM CEPA; PLANT PESTS; INSECTICIDES; TRAPS