The choice of probing sites by Bracon hebetor Say (Hymenoptera: Braconidae) foraging for Ephestia kuehniella Zeller (Lepidoptera: Pyralidae)

Darwish, Essam; El-Shazly, Mohamed; El-Sherif, Hanaa

doi:10.1016/s0022-474x(02)00023-1

Cited by 36 publications

(26 citation statements)

References 40 publications

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“…hebetor seems to search for hosts primarily on the substrate surface by host chemical cues (Strand et al, 1989;Darwish et al, 2003), but the ovipositor length of B. hebetor limits its attacking depth; Akinkurolere et al (2009) reported that a depth of 1.0 cm in an artificial diet provided refuge for P.…”

Section: Discussionmentioning

confidence: 99%

“…Its biology and interactions with P. interpunctella populations has been extensively studied (e.g., Benson, 1974;Schöller et al, 1997;Yu et al, 1999;Bjørnstad et al, 2001;Darwish et al, 2003;Mohandas et al, 2007).…”

mentioning

confidence: 99%

“…It was discovered that B. hebetor finds hosts through chemical cues produced by the host larvae and frass (Darwish et al, 2003). Yoon et al (2005) also suggested that the substrate for P. interpunctella could be a critical factor in determining the ability of the parasitoid to search for P. interpunctella larvae; deeper larvae position in the storage of whole rice grain compared to that of rice flour or cracked rice grains may allow these larvae to escape parasitism.…”

mentioning

confidence: 99%

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Pupation Site Selection Behavior of Plodia interpunctella (Lepidoptera: Pyralidae) in Response to Its Parasitoid, Bracon hebetor (Hymenoptera: Braconidae)

Shin¹,

Nam²,

Ryoo³

2012

Korean journal of applied entomology

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Pupation site selection behavior of Plodia interpunctella (Hübner) in response to its larval parasitoid, Bracon hebetor Say, was evaluated. Under the presence of the parasitoid, more moth larvae pupated in a layer deeper than 5 mm. Because the parasitoid searched for the host mostly in the surface layer (< 5 mm), larvae in deeper layers were able to successfully escape attack by the parasitoid. However, this behavior did not affect the numerical response of the parasitoid. The parasitoid laid more eggs per host larvae when the number of attacked larvae decreased.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Pupation Site Selection Behavior of Plodia interpunctella (Lepidoptera: Pyralidae) in Response to Its Parasitoid, Bracon hebetor (Hymenoptera: Braconidae)

Shin¹,

Nam²,

Ryoo³

2012

Korean journal of applied entomology

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“…The genus Bracon is an extremely large group with several species along with its worldwide distribution. Braconids are gregarious, idiobiont arrhenotokous ectoparasitoids that parasitize lepidopteran larvae and are important biological control agents for several stored products moth pests (Gul and Gulel 1995;Heimpel et al, 1997;Darwish et al, 2003). Bracon chinensis (Szepligeti) is widely distributed in Asia and is an important natural enemy of the larvae of various species of rice stem borer (Yasumatsu, 1967).…”

Section: Introductionmentioning

confidence: 99%

Toxicity of some new and conventional insecticides on Trichogramma chilonis Ishii and Bracon brevicornis Wesmael under laboratory condition

Patra¹,

Samanta²

2017

JEB

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Aim: Methodology:Results: Interpretation:Insecticides that are widely used to suppress various pests also disrupt the effectiveness of various natural control agents. After application of insecticides, predators and parasitoids may acquire insecticides via host, direct contact or by ingesting floral nectar and pollen. The main objective of the study was to find out the adverse effect of some new and conventional insecticides on Trichogramma chilonis Ishii and Bracon brevicornis Wesmael under laboratory condition.Experiments were carried out on T. chilonis and B. brevicornis in Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India. The eggs of Corcyra cephalonica Stainton were used as host for laboratory rearing of T. chilonis, whereas full grown larvae were used for rearing of B. brevicornis. Three doses (half of the recommended, recommended and double the recommended dose) of pyridalyl 10EC, indoxacarb 14.5SC, chlorfenapyr 10SC, triazophos 40EC and chlorpyriphos 20EC were used along with control treatment. Persistent toxicity study was carried out only with recommended dose of each insecticide. The mortality data of different natural enemies were analyzed following CRD. The corrected percentage mortality was calculated for persistent toxicity study.Chlorpyriphos was highly toxic to T. chilonis with no emergence followed by triazophos (1.32-10.44% emergence) and chlorfenapyr (4.22-13.63% emergence). Pyridalyl and indoxacarb were relatively safe towards T. chilonis with 70.11-77.38 and 71.51-74.94 % adult emergence. Toxicity trend towards B. brevicornis was similar to T. chilonis. Persistent toxicity study revealed that pyridalyl and indoxacarb had short persistency, chlorfenapyr was moderately persistent while conventional insecticides (triazophos and chlorpyriphos) were highly persistent.This study suggests that pyridalyl and indoxacarb can be used safely whereas chlorfenapyr, triazophos and chlorpyriphos should be used with caution in integrated pest management.

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“…Parasitoids employ associative learning during habitat selection (Segura et al, 2007), host searching (Darwish et al, 2003), and sugar foraging (Takasu and Lewis, 1993;1996).…”

Section: Introductionmentioning

confidence: 99%

Odor learning in Microplitis mediator (Hymenoptera: Braconidae) is mediated by sugar type and physiological state

Luo

Michaud

et al. 2013

Biological Control

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Parasitoids can be conditioned to respond to novel odors through associative learning, and learning can be sensitive to physiological state. This study examined the effects of various types of sugar, and two physiological factors, mating status and oviposition experience, on odor learning in the parasitoid Microplitis mediator Haliday. Female M. mediator exhibited prolonged feeding periods on fructose, glucose and sucrose, whereas periods of feeding on raffinose, mannose and galactose were not different from water. Mating status did not affect feeding time on any sugars, but the conditioned response to eucalyptol was stronger in mated females than in virgins when the unconditioned stimulus was glucose. When females were conditioned to both food-and host-associated odors and then given a choice between them in a Y-tube olfactometer, hungry females prefered the former and satiated females, the latter, regardless of whether they had prior oviposition experience. However, oviposition experience shifted the preference of partially fed females in favor of the host-associated odor, whereas those without such experience preferred the food-associated odor. This finding suggests that parasitoid females in intermediate hunger states might be more responsive in tests of other experience effects than either starved or fully fed ones.

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The choice of probing sites by Bracon hebetor Say (Hymenoptera: Braconidae) foraging for Ephestia kuehniella Zeller (Lepidoptera: Pyralidae)

Cited by 36 publications

References 40 publications

Pupation Site Selection Behavior of Plodia interpunctella (Lepidoptera: Pyralidae) in Response to Its Parasitoid, Bracon hebetor (Hymenoptera: Braconidae)

Pupation Site Selection Behavior of Plodia interpunctella (Lepidoptera: Pyralidae) in Response to Its Parasitoid, Bracon hebetor (Hymenoptera: Braconidae)

Toxicity of some new and conventional insecticides on Trichogramma chilonis Ishii and Bracon brevicornis Wesmael under laboratory condition

Odor learning in Microplitis mediator (Hymenoptera: Braconidae) is mediated by sugar type and physiological state

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