• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Working Conference on Stored Product Protection >Effect of diatomaceous earths on the reproductive performance of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)
【24h】

Effect of diatomaceous earths on the reproductive performance of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)

机译：硅藻土对癌症癌症（F.）（Fleoptera：Bruchidae）生殖性能的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The pulse beetle, Callosobruchus maculatus (F.), is a destructive pest of pulses in both storage and field. It is well known that diatomaceous earth (DE) kills the insects by locally absorbing the epicuticular lipid layers, leading to desiccation. However, the effectiveness of DE depends on its ability to kill the adults before egg-laying. Newly emerged virgin males and females of Callosobruchus maculatus (F.) were exposed to the DEs, Fossil-Shield~(R) and Silico-Sec~(R) on 30 treated tnungbeans (Vigna radiata (L)). Fecundity, number of beans used for egg-laying and beans without eggs were evaluated after 4 days; the number of unhatched eggs was evaluated after 10 days. F_1 progeny inhibition was studied using 15 pairs of newly emerged insects. Immediate and later effects of DE were studied using two groups ("treated" and "transfer"). It was determined that the fecundity of female insects fell geometrically with increasing rate of DE content. Percentages of unhatched eggs, and seeds bearing no eggs, increased with increasing DE dosages. However, the maximum egg densities (eggs per seed used) occurred at 1200 mg DE/kg for both Fossil-Shield~(R) and Silico-Sec~(R). The reason for such DE-stimulated behaviour of egg laying, expressed as a number ofseeds with eggs of C. maculatus, is not known, but it may be related to the stress caused by the inert dusts or to the reduction of both chemical and physical (tactile) stimuli. Treatment with DEs altered the surface texture of the beans and caused lesscohesion between eggs and the seed surface. Few larvae were able to penetrate the grains, possibly due to increased grain roughness and repellent effect of DE. A relatively high number of eggs was laid on the surface of those beans where the amount of dust had been locally reduced by adult movement and their pick up of DE. Therefore, several larvae tried to penetrate these treated beans, causing a high larval density per partially cleaned bean. Later effects of DEs were more significant than initial effects on mating and egg laying of C. maculatus. However, Fossil-Shield~(R) showed comparatively higher efficacy than Silico-Sec~(R). DE particles that are packed up readily damage the external genitalia of females. For all these reasons, progeny numbersdecline.
机译：Pulse Beetle CalloSobruchus Maculatus（F.）是存储和场中的脉冲的破坏性害虫。众所周知，硅藻土（DE）通过局部吸收弹性脂层杀死昆虫，导致干燥。然而，DE的有效性取决于其在蛋铺上之前杀死成年人的能力。新出现的原始原始男性和愈伤组织中的女性和女性暴露于30次治疗的Tnungbean（Vigna Radiata（L））上的DES，FOSE-SHIETION〜（R）和硅-EC〜（R）。繁殖力，4天后，评估用于卵铺设和豆类的豆类的豆类数量;在10天后评估未孵化的卵数。使用15对新出现的昆虫研究了F_1后代抑制。使用两组（“处理”和“转移”）研究DE的即时和后期效果。据确定，雌性昆虫的繁殖力随着越来越多的含量下降而下降。随着de剂量的增加，未被孵化的卵和含卵的种子的百分比增加。然而，对于化石屏蔽〜（R）和硅-EC〜（R），发生在1200mg de / kg的最大卵子密度（所用鸡蛋）。卵敷料的这种去刺激行为的原因，表达了与C. maculatus卵的卵数的数量尚不清楚，但它可能与惰性灰尘引起的应力或减少化学和物理（触觉）刺激。用DES治疗改变了豆类的表面纹理，并导致卵和种子表面之间的小涂层。很少有幼虫能够穿透晶粒，可能是由于谷粒粗糙度和DE的驱虫效果增加。在那些豆类的表面上铺设了相对较高的鸡蛋，其中灰尘量被成人运动局部减少及其接送者。因此，几个幼虫试图渗透这些处理过的豆类，导致每个部分清洁的豆类的高幼虫密度。 DES的后期效果比C. Maculatus的交配和蛋敷蛋白效果更重要。然而，化石屏蔽〜（R）表现出比硅-EC〜（r）相对较高的效率。被包装的颗粒容易损害女性的外部生殖器。出于所有这些原因，后代NumbereDecline。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号