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Research on the Integrated Control Technique of Lissohohus Oryzophilus in ZhuZhou County
Author: LingYun
Tutor: XiaoTieGuang
School: Hunan Agricultural University
Course: Plant Protection
Keywords: Biology Duration Agricultural control Light trapping
CLC: S435.112.6
Type: Master's thesis
Year: 2009
Downloads: 14
Quote: 0
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Abstract
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Rice water weevil (Lissorhoptrus oryzophilus Kusche1) is a devastating quarantine pests , a serious threat to rice production . In this paper, the morphological characteristics and the age of the rice water weevil instars duration . Kept indoors and field observation to study the biological characteristics of the pest : the rice water weevil in Zhuzhou per year of 1-2 generation overwintering in late March to early April unearthed activities . Larvae in 25 ± 1 ℃ temperature conditions , to complete a generation duration of 48.2 d, the egg stage 7 d, the larval stage of 30 d , the pupal stage 10 d adult stage about 30 d . Rice water weevil eggs developmental threshold temperature was 15.91 , effective accumulated 77.38 January February March April May June July August September October November December . The test also investigate the dynamics of the rice water weevil populations through different biological and non- biological factors . For rice water weevil control techniques were also discussed aspects of agricultural control , by comparing different rice varieties on rice water weevil beetle amount , different fertilizer and water management of rice water weevil hazard occurs investigation ; physical control adopts light trapping test , in order to provide a reference for better prevention and control of rice water weevil .
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CLC: > Agricultural Sciences > Plant Protection > Pest and Disease Control > Crop pests and diseases and their prevention > Cereal crop pests and diseases > Rice pests and diseases > Insect pest > Rice weevil
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