Mechanical egg mass removal: an effective strategy for managing white stem borer

Issue Date

10-2004

Abstract

White stem borer (WSB), Scirpophaga innotata Walker, is one of the most serious pests of rice in irrigated and rainfed environments in Agusan del Norte. High levels of WSB infestation may result in tremendous yield losses estimated at 50 to 60% or even higher during pest outbreak. The effectiveness of mechanical egg mass removal in managing WSB was evaluated in the experimental area of PhilRice Agusan and in selected farmers' fields for four cropping seasons (2002-2003). Mechanical removal of egg masses in the field significantly reduced WSB damage resulting in yield and income higher than those in the insecticide-treated and untreated fields. Yield decreased as the degree of WSB damage (%whiteheads) in PSB Rc82 rice variety increased.

Source or Periodical Title

Philippine Entomologist

ISSN

0048-3753

Volume

18

Issue

2

Page

175

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

SCIRPOPHAGA; PLANT PESTS; CROP YIELD; PEST CONTROL; YIELD LOSSES; COST BENEFIT ANALYSIS

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