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 。
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
出处
《草地学报》
CAS
CSCD
2000年第2期120-125,共6页
Acta Agrestia Sinica
关键词
红胫戟纹蝗
食量
牧草
防治指标
Dociostaurus(S.) Kraussi kraussi (Ingen)
Intake
Forage loss
Economic threshold
