Biologia do ectoparasitóide Bracon hebetor Say, 1857 (Hymenoptera: Braconidae) em sete espécies de lepidópteros

Magro, Sandra; Parra, José Roberto Postali

doi:10.1590/s0103-90162001000400007

Cited by 31 publications

(25 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Magro & Parra (2004) observed an increase in B. hebetor larval stage when insects grew on artificial diet, compared to insects on natural host. Similar data concerning the duration of this parasitoid's larval phase were obtained from insects reared on natural host (Magro & Parra 2001). 2 and 3).…”

Section: Resultssupporting

confidence: 69%

Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae)

Magro¹,

Dias²,

Terra³

et al. 2006

Neotrop. Entomol.

View full text Add to dashboard Cite

Neotropical Entomology 35(2): 215-222 (2006) Bases Biológicas, Nutricionais e Histoquímicas para o Aprimoramento de Dieta Artificial para Bracon hebetor Say (Hymenoptera: Braconidade) PALAVRAS-CHAVE: Controle biológico, ácido graxo, idiobionte, exigência nutricional, proteínaABSTRACT -The biology of Bracon hebetor Say (Hymenoptera: Braconidae) reared on fifth instars of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) (natural diet) and in vitro (artificial diet) was evaluated. Data on the number of instars, development time and food intake were collected, and histochemical tests were conducted to detect proteins and lipids in the parasitoid's digestive tract. The data disclosed differences that can help to improve artificial rearing of B. hebetor. B. hebetor had three instars in both diets, but the developmental time on the artificial diets was prolonged due to the increase in larval and pupal development times. Larvae grew faster on the natural host and required a lower food intake (2.7 μl) as compared to that required by the larvae feeding on the artificial diet (3.8 μl). Analysis of diet protein content and host hemolymph and the observations on the parasitoid larvae gut content indicated altogether the artificial diets requires the addition of others sources of proteins and lipids to improve the overall nutrition quality of the in vitro rearing system for this ectoparasitoid.

show abstract

Section: Resultssupporting

confidence: 69%

Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae)

Magro¹,

Dias²,

Terra³

et al. 2006

Neotrop. Entomol.

View full text Add to dashboard Cite

show abstract

“…Habrobracon hebetor Say is a gregarious, idiobiont and larval ectoparasitoid of pyralid and noctuid moths (Magro and Parra 2001;Dweck et al 2008). This parasitoid can easily be mass reared and it has been released in the field for effective control of Heliothis and Helicoverpa spp.…”

Section: Introductionmentioning

confidence: 99%

Effects of Azadirachtin, Cypermethrin, Methoxyfenozide and Pyridalil on Functional Response of Habrobracon Hebetor Say (HYM.: Braconidae)

Abedi¹,

Saber²,

Gharekhani³

et al. 2012

Journal of Plant Protection Research

View full text Add to dashboard Cite

Abstract:Habrobracon hebetor Say is one of the most important natural enemies of the Helicoverpa armigera Hübner (Lep.: Noctuidae). In this study, the sublethal effects of LC 30 concentration of azadirachtin, cypermethrin, methoxyfenozide and pyridalil on the functional response of H. hebetor to different densities of 5th instars larvae of Ephestia kuehniella Zeller were evaluated. Young females were exposed to LC 30 of the insecticides for an appropriate time of exposure. Then, six randomly selected alive females were transferred individually to plastic Petri dishes (10 cm in diameter) and supplied with the following densities: 2, 4, 8, 16, 32 and 64 of 5th instars of E. kuehniella for 24 h. Eight replicates were considered for each insecticide treatment and the control. The results revealed a type II functional response in the control, and all of the insecticide treatments. This study showed that the control and the cypermethrin treatment had the shortest (0.4143 h) and longest (0.624 h) handling time, respectively. The highest (0.0035 per hour) and lowest (0.0029 per hour) attack rate was observed in pyridalil and cypermethrin treatments, respectively. Based on values of handling time, cypermethrin had the highest adverse effect on host-finding in H. hebetor.

show abstract

“…Habrobracon hebetor (Say) (=Bracon hebetor) (Haeselbarth 1983;Amir-Maafi and Chi 2006) is a cosmopolitan polyphagous ectoparasitoid that has been studied as a biological control agent of various lepidopterian pests in several countries (Gerling 1971;Youm and Gilstrap 1993;Baker et al 1995;Magro and Parra 2001;Hopper 2003). H. hebetor has been used to control Helicoverpa armigera Hübner and Ostrinia nubilalis Hübner in Iran and a mass rearing program has been intiated (Navaei et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

et al. 2011

View full text Add to dashboard Cite

Habrobracon hebetor Say is one of the most important ectoparasitoids of the larval stage of many invasive agricultural pests such as noctuid and pyralid moths. Lethal and sublethal effects of carbaryl and abamectin were assessed on the ectoparasitoid H. hebetor in laboratory conditions. Dose-response bioassays were carried out on immature and adult stages by using dipping and contact residue methods, respectively. LC 50 (lethal concentration for 50%) values of carbaryl and abamectin were 31.19 and 4.16 mg a.i. l -1 on larval stage and 12.6 and 4.42 mg a.i. l -1 on adults, respectively. In order to assess the sublethal effects, adult wasps were exposed to an LC 30 of each insecticide and then the demographic parameters of live wasps were studied. The results showed that the intrinsic rate of increase (r m ), finite rate of increase (k), net reproductive rate (R 0 ) and gross reproductive rate (GRR) were significantly affected by the insecticides. The highest and the lowest r m values were 0.23 and 0.17 in control and carbaryl-treated insects, respectively. The sex ratio of H. hebetor offspring was not significantly affected by either insecticide. The results showed that carbaryl had more adverse effects on population parameters of the parasitoid compared to abamectin. Field studies are needed to determine the total effects of the pesticides on H. hebetor.

show abstract

Biologia do ectoparasitóide Bracon hebetor Say, 1857 (Hymenoptera: Braconidae) em sete espécies de lepidópteros

Cited by 31 publications

References 16 publications

Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae)

Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae)

Effects of Azadirachtin, Cypermethrin, Methoxyfenozide and Pyridalil on Functional Response of Habrobracon Hebetor Say (HYM.: Braconidae)

Comparative study of the population level effects of carbaryl and abamectin on larval ectoparasitoid Habrobracon hebetor Say (Hymenoptera: Braconidae)

Contact Info

Product

Resources

About