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《Journal of Chongqing Normal University(Natural Science)》 2008-02
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A Study of Syzygium aromaticum for the Killing of Tribolium castaneum Egg

HAN Qun-xin1,2,HUANG Shou-shan2(1.Dept.of Plant Protection,Zhongkai College of Agricultural Technology,Guangzhou 510225;2.College of Environment and Natural Resources,South China Agricultural University,Guangzhou 510642,China)  
The red flour beetle Tribolium castaneum(Herbst) is a worldwide pest of stored product.Using scanning electron microscope,we observe the egg surface morphology and embryonic developmental process of the pest.Especially,we study the effect of the clove Syzygium aromaticum for the killing of red flour beetle egg.The normally developed egg was ellipse with smooth surface in shape.The 60 h-old egg has differentiated at one end of the egg observed from outside,76 h-old egg has developed the larval shape and 92 h-old egg begins to hatch.Eggs treated with clove could partially develop to larvae,but all of these larvae died as they could not normally hatch.Among various treatments,12 h-old eggs treated with clove could not develop into larvae and so died.Some of 36 h-old eggs treated with clove could develop to larvae,but could not hatch or so died in egg shell,and 84 h-old eggs treated with clove could complete its embryonic development,but the larvae in the shell would die while hatching.The control of stored product pests,at present,mainly still depends on chemical protectants and fumigants,and the finding in the effect of the clove for the control of the red flour beetle is of potential significance in stored product protection.
【CateGory Index】: S379.5
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