Habrobracon hebetor Say is an ectoparasitoid of larval stage of various lepidopteran pests. Lethal and sublethal effects of azadirachtin and cypermethrin were. ABSTRACT. Habrobracon hebetor Say (Hymenoptera: Braconidae) is a gregarious ecto-parasitoid that attacks larvae of several species of Lepidoptera, mainly. Abstract. The reproductive performance of the parasitoid Habrobracon hebetor ( Say) (Hymenoptera: Braconidae) against the moths Anagasta kuehniella Zeller.
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Food characteristics strongly regulate digestive enzymatic activity of insects through direct influences on their midgut mechanisms. Insect habroracon is better on diets that contain nutrients in proportions that fit its digestive enzymes.
Little is known about the influences of rearing history on parasitism success of Habrobracon hebetor Habrobrscon. This research focused on the effect of nutrient regulation on survival, development, and parasitism of H. Life history and digestive enzyme activity of fourth-stage larvae of H. In term of parasitism success, H.
When the first and fourth generations of He. A better performance of H. Thus, a better performance of H. Parasitoids play a key role in integrated pest management programs due to their capability to keep pest populations under economic thresholds Belda and Riudavets Habrobracon hebetor Say Hymenoptera: Due to the wide host range, several studies have focused on the effect of quantity and quality of host on ecology and life history of H.
However, in spite of the importance of H.
Only, a paper was published concerning the developmental time of H. Therefore, this study is the first attempt about the adaptation of H. In this research, the biology and digestive enzyme activity of the fourth-stage larvae of H.
After that, this parasitoid was introduced to H e. Consequently, the success of this parasitoid after changing of host was also studied. Mediterranean flour moth, E. Mediterranean flour moth was reared on a wheat flour, rolled oats, and yeast 6: Larvae of H e.
A laboratory stock colony of H. The parasitoids were reared on fifth-stage larvae of E. After establishing proper population on E. D h in a growth chamber for three generations for possess to population reared on each host. To study the developmental time of the parasitoid, the 50 parasitoids to h-old parasitoid that reared on E.
Petri dishes were visited daily, and the duration of immature stages and adult longevity were recorded for H.
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To determine the number of eggs laid by female H. The Petri dishes were checked daily, and all newly laid eggs were counted and recorded for H. The dinitrosalicylic acid method Bernfeld was used to assay the digestive amylolytic activity of H.
All experiments were replicated three times. Before the analysis, all data were examined for normality using the Kolmogorove—Smirnov test. Life history and enzymatic activity of H. The incubation period was longest in the parasitoids reared for four generations on H e.
Also, the larvae developed more slowly on H e. The larvae reared for one generation on H e. The records for the longest longevity of female H. By contrast, the records for the shortest longevity of female were on H e.
Habrobracon hebetor – Wikipedia
The habrobraon survival rate of the immature stages of H. By contrast, the lowest realized fecundity and egg fertility were for females came from larvae fed on H e. The sex ratio of parasitoid was the highest on E. Numbers in parentheses show the number of H. The larvae reared on E.
The lowest general protease activity was found heebtor the larvae reared on H e. The results showed that the fourth-stage larvae reared on E. Also, the fourth-stage larvae reared on H e. Amylolytic zymogram of midgut extract from H.
Numbers are as follows: General protease zymogram of midgut extract from H. Using of parasitoids, such as H. The success of H. In this study, the biological characteristics and digestive enzymatic profile of H. The results of this study showed that E. There were significant habobracon in fecundity and fertility, significant decreases in larval duration, and generally lower mortality rate for E.
This indicates that H e. Ghimire and Phillips investigated the effect of different lepidopteran hosts, such as E. According to their results, E. In the larvae reared on E. In the present research, immature period was significantly increased, male and female longevity were significantly decreased when parasitoid was reared habroracon H e. It has been well established that adaptation to food has a considerable effect on life cycle, fecundity, hebstor fertility.
The larvae reared on H e. On the other hands, it was discovered a difference in expression level and type of general proteases.
In conclusion, an extremely important result in the present study is the fact that change of host could affect the final outcome of the parasitoid. This is very important subject in mass rearing and release of parasitoids against pests in field and storage conditions. Therefore, due to H.
We thank the University of Mohaghegh Ardabili Ardabil, Iran for cooperation by support for the experiment. National Center hebeetor Biotechnology InformationU.
Journal List J Insect Sci v. Published online Feb 2. Author information Article notes Copyright and License information Disclaimer.
habrobracon hebetor hymenoptera: Topics by
Received Aug 20; Accepted Jan 2. For commercial re-use, please contact journals. Abstract Food characteristics strongly regulate digestive enzymatic activity of hebeyor through direct influences on their midgut mechanisms. Habrobracon hebetorbiocontrol, rearing history, digestive physiology.
Parasitoid Rearing A laboratory stock colony of H. Developmental Time To study the developmental time of the parasitoid, the 50 parasitoids to h-old parasitoid that reared on E. Amylolytic and Proteolytic Activity Assay The dinitrosalicylic acid method Bernfeld was used to assay the digestive amylolytic activity of H. Data Analysis Before the analysis, all data were examined for normality using the Kolmogorove—Smirnov test.
Results Developmental Time Braconid wasp, H. Open in a separate window.
Discussion Using of parasitoids, such as H. Conclusion In conclusion, an extremely important result in the present study is the fact that change of host could affect the final outcome of the parasitoid.
Acknowledgments We thank the University of Mohaghegh Ardabili Ardabil, Iran for cooperation by support for the experiment.
References Cited Altuntas H. The effects of parasitism by the ectoparasitoid Bracon hebetor Say Hymenoptera: Braconidae on host hemolymph proteins in the Mediterranean flour moth Ephestia kuehniella Zeller Lepidoptera: Characterization of digestive enzymes of bruchid parasitoids—initial steps for environmental risk assessment of genetically modified legumes.
Effects of potato plants expressing a barley cystatin on the predatory bug Podisus maculiventris via herbivorous prey feeding on the plant. Natural enemies associated with lepidopteran pests in food and feed processing companies.
Population dynamics of Bracon hebetor Say Hymenoptera: Braconidae and Ephestia cautella Walker Lepidoptera: Pyralidae in a laboratory ecosystem. Biological controlpp. Cold hardiness of Habrobracon hebetor Say Hymenoptera: Braconidaea parasitoid of pyralid moths. Performance of diapausing parasitoid wasps, Habrobracon hebetorafter cold storage. Maternal and progeny quality of Habrobracon hebetor Say Hymenoptera: Braconidae after cold storage. Effect of larval host food substrate on egg load dynamics, egg size and adult female size in four species of braconid fruit fly Diptera: