Seasonal patterns of brown and white-backed planthopper populations on rice

Issue Date

10-2016

Abstract

Monitoring technique for rice planthopper using light strap was established in 2014 to 2015 at the PhilRice Central Experiment Station (CES), Maligaya, Science City of Muñoz, Nueva Ecija. The highest numbers of planthopper population were recorded in March to April and August to September. Considering the months of January to June, there were about 72% reduction in RPH population in 2014 compared to that in 2015. The planthopper field population were also determined using sticky trap in two sites located in PhilRice CES, Science City of Muñoz and Mabini, Sto. Domingo, Nueva Ecija. During the 2015 dry seasons, the highest numbers of planthoppers were in the months of March to April. These populations were about twice lower than those in the dry season of the previous year. Moreover, it was also noted that the ratio of population of planthoppers to that of spiders was high at about 1:1. These observed high populations of RPH were monitored using sticky trap and coincided with the reproductive phase and seems to invade rice earlier during wet season. For both dry and wet seasons, monitoring data showed that white-backed planthoppers was usually earlier in colonizing rice plants than the brown planthopper.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

30

Issue

2

Page

187-188

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

FULGOROIDEA; ORYZA SATIVA; RICE; SPECIES; PESTS OF PLANTS; SEASONAL VARIATION; DRY SEASON; WET SEASON

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