Rice prescription experiment in Agusan Del Norte

Issue Date

10-2013

Abstract

Three cropping practices (rice-prescription, primitive yield and farmers practice) were tested in this study. Highest average population of white stemborers was observed in rice-prescription treatment at booting (2.0 adults/10 sweeps) and flowering stages (2.67 adults/10 sweeps). At maximum tillering and flowering stages, primitive treatment showed the highest population of green leafhopper, Nephotettixvirescens (24.33 adults/ 10 sweeps and 68.00 adults / 10 sweeps). The most dominant natural enemies observed in all treatments were spiders, mirid bugs, wasps, dragonfly, cocciniled beetles and ground beetle. In terms of rat damage, rice prescription treatment had the highest damage (12.82%). rice diseases such as sheath blight, rice prescription treatment showed the highest percent damage at booting (4.65%) and flowering stages (11.57%). Primitive yield treatment had the lowest bacterial leaf blight damage (2.76%) at maturity stage. However, lowest (1.04%) brown spot infections was noted in rice-prescription treatment at maturity stage. White stemborer damage (deadheart) was not significant in all treatments. However, highest whitehead damage was obtained from primitive yield at flowering and maturity stages with 7.01% and 12.19% respectively. In terms of yield, rice-prescription treatment got the highest yield (4.45% t/ha) while primitive yield had the lowest yield (2.92 t/ha).

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

27

Issue

2

Page

203

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

NEPHOTETTIX VIRESCENS; STEM EATING INSECTS; PLANT DISEASES; CROPPING SYSTEMS; PHILIPPINES

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