| ABSTRACT | 第1-16页 |
| 中文摘要 | 第16-19页 |
| CHAPTER ONE GENERAL INTRODUCTION AND LITERATURE REVIEW | 第19-56页 |
| ·General introduction | 第19-21页 |
| ·Stored products and their environment | 第21-23页 |
| ·Postharvest food losses and causes | 第23-24页 |
| ·The Indianmeal moth | 第24-27页 |
| ·Trends in food storage and pest control | 第27-42页 |
| ·Cultural methods | 第28-29页 |
| ·Hygienic and sanitary measures | 第29页 |
| ·Structural methods | 第29页 |
| ·Grain protectants | 第29-31页 |
| ·Chemical control | 第31-38页 |
| ·Biological control in stored products | 第38-42页 |
| ·Bacillus thuringiensis | 第42-49页 |
| ·Application of Bacillus thuringiensis pesticides | 第42-44页 |
| ·Revised Bacillus thuringiensis insecticidal crystal protein | 第44-49页 |
| ·Habrobracon hebetor Say | 第49-50页 |
| ·Combination of two or more biological control techniques | 第50-53页 |
| ·Dissertation objectives | 第53-56页 |
| CHAPTER TWO GENERAL MATERIALS AND METHODS | 第56-59页 |
| ·Bacillus thuringiensis strains | 第56-57页 |
| ·Collection and rearing of test insects | 第57-58页 |
| ·Preparation of artificial diet | 第58-59页 |
| CHAPTER THREE PARASITISM AND HOST-LOCATION PREFERENCE IN HABROBRACON HEBETOR(HYMENOPTERA:BRACONIDAE):ROLE OF REFUGE,CHOICE AND HOST-INSTAR | 第59-75页 |
| ·Introduction | 第59-60页 |
| ·Material and methods | 第60-64页 |
| ·Collection and rearing of test insects | 第60-61页 |
| ·Experimental procedures | 第61-63页 |
| ·Data analysis | 第63-64页 |
| ·Results | 第64-71页 |
| ·Effect factors on parasitism by Habrobracon hebetor | 第64-69页 |
| ·Effects of Host-instars on Habrobracon hebetor Progeny | 第69-71页 |
| ·Discussion | 第71-75页 |
| CHAPTER FOUR RESPONSE OF PLODIA INTERPUNCTELLA(LEPIDOPTERA:PYRALIDAE)TO TREATMENTS WITH DIFFERENT STRAINS OF BACILLUS THURINGIENSIS | 第75-93页 |
| ·Introduction | 第75-76页 |
| ·Material and methods | 第76-82页 |
| ·Insect culture | 第76-77页 |
| ·Bacillus thuringiensis strains | 第77页 |
| ·Bioassays | 第77-80页 |
| ·Serological tests | 第80页 |
| ·DNA extraction,PCR and SDS-PAGE | 第80-81页 |
| ·Statistical analysis | 第81-82页 |
| ·Results | 第82-90页 |
| ·Insect bioassay and toxicity | 第82-86页 |
| ·Characterization of isolates with high toxicity to Indianmeal moth | 第86-90页 |
| ·Discussion | 第90-93页 |
| CHAPTER FIVE EFFECT OF BACILLUS THURINGIENSIS ON HABROBRACON HEBETOR DURING COMBINE BIOLOGICAL CONTROL OF PLODIA INTERPUNCTELLA | 第93-113页 |
| ·Introduction | 第93-96页 |
| ·Materials and methods | 第96-101页 |
| ·Collection and rearing of test insects | 第96页 |
| ·Bacillus thuringiensis strains and media | 第96-97页 |
| ·Purification of Bacillus thuringiensis spores and crystals | 第97页 |
| ·Preliminary assay of 50%lethal concentrations(LC_(50)) to Plodia interpunctella | 第97-98页 |
| ·Host(Plodia interpunctella) location and acceptance by Habrobracon hebetor | 第98-99页 |
| ·Effect of combining Bacillus thuringiensis with Habrobracon hebetor for control of Plodia interpunctella | 第99-101页 |
| ·Statistical analysis | 第101页 |
| ·Results | 第101-109页 |
| ·Preliminary assay of 50%lethal concentrations(LC_(50)) to Plodia interpunctella | 第101-102页 |
| ·Host(Plodia interpunctella) location and acceptance by Habrobracon hebetor | 第102-104页 |
| ·Effect of varying treatments on Plodia interpunctella mortality | 第104-105页 |
| ·Effect of Bacillus thuringiensis-intoxicated hosts on Habrobracon hebetor progeny development | 第105-109页 |
| ·Discussion | 第109-113页 |
| ·Mortality effect of treatments on Plodia interpunctella | 第109-110页 |
| ·Influence of Bacillus thuringiensis-intoxicated hosts on Habrobracon hebetor development | 第110-113页 |
| CHAPTER SIX KAIROMONE EXTRACTED FROM FRASS AND LARVA OF INDIANMEAL MOTH,ELICITS OVIPOSITION BEHAVIOUR IN HABROBRACON HEBETOR | 第113-143页 |
| ·Introduction | 第113-115页 |
| ·Methods and materials | 第115-124页 |
| ·Collection and rearing of insects | 第115页 |
| ·Extraction | 第115-116页 |
| ·Isolation and identification | 第116-117页 |
| ·Thin-layer chromatography | 第117页 |
| ·Gas chromatography | 第117页 |
| ·Gas Chromatography-Mass Spectrometry | 第117-118页 |
| ·Testing effects on parasitization rates on P.interpunctella-related materials | 第118-120页 |
| ·Responses of the parasitoid to extracts of materials from P.interpunctella | 第120-121页 |
| ·Behavioral responses of female parasitoids to isolates from P.interpunctella-related materials | 第121-122页 |
| ·Statistical analyses | 第122-124页 |
| ·Results | 第124-139页 |
| ·Response of Habrobracon hebetor females to Plodia interpunctella-related materials | 第124-127页 |
| ·Response of Habrobracon hebetor females to extracts from Plodia interpunctella-related materials | 第127-130页 |
| ·Response of Habrobracon hebetor females to fractions isolated from frass or larva of Plodia interpunctella | 第130-137页 |
| ·Identification of hexane soluble active fraction isolated from frass and fifth instar larva of Plodia interpunctella | 第137-139页 |
| ·Discussion | 第139-143页 |
| ·Response to Plodia interpunctella related materials by Habrobracon hebetor | 第139-140页 |
| ·Effect of extraction solvents and the response of Habrobracon hebetor to extracts from Plodia interpunctella-related materials | 第140-141页 |
| ·Active compounds identification from fraction isolated from frass and fifth instar larva of Plodia interpunctella | 第141-143页 |
| GENERAL CONCLUSIONS AND RECOMMENDATIONS | 第143-146页 |
| LITERATURES CITED | 第146-178页 |
| ACKNOWLEDGEMENTS | 第178-180页 |
| ARTICLES PUBLISHED DURING THE PHD PROGRAM | 第180-181页 |
