Effects of larval age on mortality of Monochamus alternatus Hope (Coleoptera: Cerambycidae) after application of nonwoven fabric strips with Beauveria bassiana
Effects of larval age on mortality of Monochamus alternatus Hope (Coleoptera: Cerambycidae) after application of nonwoven fabric strips with Beauveria bassiana
复制标题
施用白僵菌无纺布条后幼虫日龄对松墨天牛（鞘翅目：天牛科）死亡率的影响
DOI：
10.1303/aez.2003.1
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
H. Sato
中科院分区：
文献类型：
--
作者：
M. Shimazu;H. Sato
在现场应用球孢白僵菌控制松墨天牛幼虫生活在死松树，死亡率的差异无法分析的应用日期，由于产卵时间的变化。为了解决这一问题，在7月或8月，通过将原木在屏蔽笼中暴露于雌性甲虫一天来获得具有相同年龄的卵的松树原木。用B浸渍的无纺布条。在9月将巴西纳培养物应用于原木。B感染率。8月产卵的幼虫中，球孢白僵菌的含量高于7月产卵的幼虫。在同一天产卵的原木中，4条/2 m的感染率高于1.5条/2 m的。试验结果表明，对黑胫病的防治效果最好。通过施用具有B的非织造织物条来防治松墨天牛。当真菌被应用于位于树皮下的幼幼虫而不是更远的木材内的老幼虫时，巴西纳更有效。
During field applications of Beauveria bassiana for control of Monochamus alternatus larvae living in dead pine trees, differences of mortalities by application date could not be analyzed due to variability in timing of oviposition. To solve this problem, pine logs with eggs of the same age were obtained by exposing logs to female beetles for one day in a screened cage in July or August. Nonwoven fabric strips impregnated with B. bassiana cultures were applied to the logs in September. Infection rate by B. bassiana was higher among larvae from eggs laid in August compared with those from eggs laid in July. Among the logs oviposited on the same day, the infection rate was higher in those with 4 strips/2 m than those with 1.5 strips/2 m. The results of the experiment showed that control of M. alternatus by applying nonwoven fabric strips with B. bassiana was more effective when the fungus was applied to young larvae located under the bark instead of older larvae further within the wood.