Monitoring of rice pests in Western Pangasinan

Issue Date

10-2016

Abstract

Ocular observation, sweep net, and key person interview were utilized to monitor the unusual high population occurrence of armyworms, brown planthoppers (BPH) and white-backed planthoppers (WBPH) in rice fields in Western Pangasinan towns of Alaminos, Agno, Bani, Burgos and Mabini from July to September, 2016. In rice fields with different growth stages and varieties, sweep-net sampling (10 sweeps/plot) replicated three times was done to generate insect counts data. The results showed a mean population of up to 660 white-backed planthoppers per plot across six barangays in the said towns of Western Pangasinan. Glutinous rice fields in Brgy. [Village] Magsaysay, Alaminos were infested by BPH causing very severe cases of hopper burns. In the town of Burgos, out of 168.2 hectares 14.9 hectares and 35.5 hectares were infested by BPH/ WBPH and armyworm, respectively, during the last week of August 2015. Meanwhile, in Mabini around 72 hectares of rice area were affected by BPH/WBPH. The occurrence of patches of high population and damages caused by the above mentioned rice pest. A proactive surveillance of rice pests in the same localities and other areas, especially now with the on-going El Niño episode in the country, is imperative.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

30

Issue

2

Page

189

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

FULGOROIDEA; PESTS OF PLANTS; SPECIES; MONITORING; RICE FIELDS; PHILIPPINES

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