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灭幼脲对云斑天牛不育作用的效应期(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1998年02期
Page:
93-96
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
THE EFFECTIVE PHASE OF CHEMOSTERILIZATION BY DIFLUBENZURONIN BATOCERA HORSFIELDI (HOPE)
Article ID:
1000-2006(1998)02-0093-04
Author(s):
Ji Baozhong(Nanjing Forestry University Nanjing 210037)Liu Shuwen Ju Feng(Management Office of Sun Yatsens Mausoleum)Dai Dewei Yang Min
Nanjing Research Institute of Garden Science
Keywords:
Diflubenzuron Sterilization Effective phase
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1998.02.023
Document Code:
A
Abstract:
Adult Batocera horsfieldi (Hope) were fed continuously with rose branches treated with diflubenzuron (DFB) at a concentration of 2.5、5.0、10.0、20.0、50.0、100.0mg/kg. The relationship between dynamic state of adults foodintake and that of progenyeggs hatchability was evaluated in the laboratory. When the concentration of DFB aqueous solution varied from 2.5mg/kg to 100.0mg/kg, the adults foodintake was inversely proportional to progenyeggs hatchability. On the basis of relationship mentioned above, we calculated the rate of the concordance between the dynamic state of adults foodintake and that of progenyeggs hatchability under conditions of different intervals. When the interval was 5、10、15、20d and 25d, the rate of concordance was 36.23%、57.97%、41.79%、65.57%、32.83%,respectively. It was concluded that the effective phase of chemosterilization by DFB in B. horsfieldi was about 10~20d. The results also showed that ingestion of DFB by progenyeggs was the main cause of sterile activities of DFB on the adult. The critical period when DFB in the hemolymph got into progenyeggs was the vitellogenesis stage. Insects whose oogenesis appeared in adult stage were apt to be sterilized by DFB. The optimal treating season was before the vitellogenesis stage.

References

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Last Update: 1900-01-01