Monitoring of rice pests in Western Pangasinan [Philippines]
2016
Cayabyab, B.F. | Antineo, M.L. | Ebuenga, M.D. | Frianeza, R.P. | Gonzales, P.G. | Burgonio, G.A.S. | Pangga, I.B.
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 [Philippines] 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.
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