印度尼西亚卡拉旺休耕稻田中水稻蛀螟及其寄生虫的物种调查

Ruly Anwar, Dewi Sartiami, Aunu Rauf
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引用次数: 0

摘要

水稻螟虫(RSB)会造成相同的危害症状,并在不同季节和时间发生。在水稻的淡季,这些螟虫并不出名。这项研究旨在确定水稻休耕对水稻螟虫及其寄生虫的影响、RSB 侵害的可能性,以及它们对西爪哇卡拉旺地区苗圃中后续水稻秧苗的寄生虫的影响。研究观察了几个变量,包括稻茬上的水稻二化螟幼虫数量、卵块数量、寄生卵的百分比以及苗圃中水稻二化螟成虫的数量。结果表明,落叶水稻上的水稻二化螟种类为Scirpophaga incertulas和Sesamia inferens。在长稻田休耕时,S. incertulas 的数量明显较多。两地的稻茬高度相差不大。但是,短休耕期的稻茬虫害高于长休耕期。S. incertulas 的卵孵化和寄生率较高,主要产于长休耕地区的苗圃。已查明的寄生虫有三种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Species Investigation of Rice Stem Borers and Its Parasitoids on Fallowing Rice Fields at Karawang, Indonesia
Rice stem borers (RSB) cause the same damage symptoms and occur through the season and time. During the off-season for rice, these stem borers are not well-known. The research aims to determine the effect of fallowing rice on the presence of rice stem borers and their parasitoids, the potential for RSB infestation, and their parasitoid on subsequent rice seedlings in nurseries at Karawang Regency, West Java. Several variables are observed, including the number of rice stem borer larvae on stubbles, egg masses, the percentage of parasitized eggs, and the number of adults of rice stem borer in nurseries. The results show that species of rice stem borer on the fallow rice are Scirpophaga incertulas and Sesamia inferens. The population of S. incertulas is significantly higher on long rice fallow. The height of the paddy stubble at the two locations is not very different. However, the infested stubble in the short fallow period is higher than those in the long fallow. Eggs of S. incertulas whose high percentage hatched and parasitized, are primarily found in nurseries of areas with long fallow. There are three species of parasitoids identified.
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