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红胫戟纹蝗损害牧草及其防治指标的评定
Research on Forage Loss Cansed by the Dociostaurus(S.) Kraussi kraussi (Ingen) and Determination of Economic Threshold
【摘要】 1994年 4~ 8月进行红胫戟纹蝗虫损害牧草及防治指标的评定。结果表明 ,红胫戟纹蝗的体重、食量和牧草掉落毁损量三者之间呈正相关。红胫戟纹蝗个体一生的牧草损失量为 :L=1 .40 39g/头。红胫戟纹蝗在荒漠、半荒漠草原的防治指标为 :≥ 8头 /m2 。
【Abstract】 WT5”BZ]The Dociostaurus(S.) Kraussi kraussi (Ingen)is the most destructive insect found in the desert and semi desert grassland of Xinjiang Autonomous Region of northwest China. 1 The Dociostaurus(S.) Kraussi kraussi (Ingen) body weight,intake and forage loss are positively correlated. 2 Life time forage intake by dociostaurus(s.) Kraussi kraussi (Ingen) is L=1.4039g/head. 3 Economic threshold of Dociostaurus(S.) Kraussi kraussi (Ingen) in Xinjiang semi desert grassland is ≥8 head/m 2
【关键词】 红胫戟纹蝗;
食量;
牧草掉落毁损量;
防治指标;
【Key words】 Dociostaurus(S.) Kraussi kraussi (Ingen); Intake; Forage loss; Economic threshold;
【Key words】 Dociostaurus(S.) Kraussi kraussi (Ingen); Intake; Forage loss; Economic threshold;
- 【文献出处】 草地学报 ,ACTA AGRESTIA SINICA , 编辑部邮箱 ,2000年02期
- 【分类号】S435.4
- 【被引频次】9
- 【下载频次】75