Chinese oak silkworm Antherae pernyi egg, a suitable factitious host for rearing eupelmid egg parasitoids

2022 ◽  
Author(s):  
Yong‐Ming Chen ◽  
Asim Iqbal ◽  
Rui‐E Lv ◽  
Xingeng Wang ◽  
Nicolas Desneux ◽  
...  
Keyword(s):  
Egg Parasitoids ◽  
Factitious Host

scholarly journals Small-scale rearing of Anagasta kuehniella for Trichogramma production

2021 ◽  
Keyword(s):  
Natural Enemies ◽  
Egg Parasitoids ◽  
Ephestia Kuehniella ◽  
Small Scale ◽  
Anagasta Kuehniella ◽  
Lepidopteran Pests ◽  
The World ◽  
Factitious Host

Abstract This book contains 4 chapters focusing on techniques for small-scale rearing of the egg parasitoids Trichogramma spp. in the factitious host Anagasta kuehniella [Ephestia kuehniella]. These parasitoids are among the most widely used natural enemies in the world, and in Brazil are used to control lepidopteran pests in a wide variety of crops.

Factitious host species impact on the outcome of multiparasitism between egg parasitoids

2019 ◽  
Vol 92 (3) ◽  
pp. 1261-1269 ◽  
Author(s):  
Asim Iqbal ◽  
Yong-Ming Chen ◽  
Yang-Yang Hou ◽  
Lisheng Zhang ◽  
Nicolas Desneux ◽  
...  
Keyword(s):  
Host Species ◽  
Egg Parasitoids ◽  
Factitious Host

scholarly journals Small-scale rearing of Anagasta kuehniella for Trichogramma production

10.1079/.0000 ◽  
2021 ◽  
Keyword(s):  
Natural Enemies ◽  
Egg Parasitoids ◽  
Ephestia Kuehniella ◽  
Small Scale ◽  
Anagasta Kuehniella ◽  
Lepidopteran Pests ◽  
The World ◽  
Factitious Host

Abstract This book contains 4 chapters focusing on techniques for small-scale rearing of the egg parasitoids Trichogramma spp. in the factitious host Anagasta kuehniella [Ephestia kuehniella]. These parasitoids are among the most widely used natural enemies in the world, and in Brazil are used to control lepidopteran pests in a wide variety of crops.

scholarly journals Rearing Trissolcus japonicus and Trissolcus mitsukurii for Biological Control of Halyomorpha halys

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 787
Author(s):  
Giuseppino Sabbatini-Peverieri ◽  
Christine Dieckhoff ◽  
Lucrezia Giovannini ◽  
Leonardo Marianelli ◽  
Pio Federico Roversi ◽  
...  
Keyword(s):  
Biological Control ◽  
Control Method ◽  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Progeny Production ◽  
Asian Origin ◽  
Frequent Use ◽  
Trissolcus Japonicus ◽  
Cumulative Curves

Halyomorpha halys is a severe agricultural pest of Asian origin that has invaded many countries throughout the world. Pesticides are currently the favored control methods, but as a consequence of their frequent use, often disrupt Integrated Pest Management. Biological control with egg parasitoids is seen as the most promising control method over the long-term. Knowledge of the reproductive biology under laboratory conditions of the most effective candidates (Trissolcus japonicus and Trissolcus mitsukurii) for optimizing production for field releases is strongly needed. Rearing of these egg parasitoids was tested by offering three different host supply regimes using new emerged females and aged, host-deprived females in different combinations. Results showed a mean progeny per female ranging from 80 to 85 specimens for T. japonicus and from 63 to 83 for T. mitsukurii. Sex ratios were strongly female biased in all combinations and emergence rates exceeded 94% overall. Cumulative curves showed that longer parasitization periods beyond 10–14 days (under the adopted rearing regimes) will not lead to a significantly increase in progeny production. However, ageing females accumulate eggs in their ovaries that can be quickly laid if a sufficient number of host eggs are supplied, thus optimizing host resources. Our data showed that offering H. halys egg masses to host-deprived female Trissolcus once a week for three weeks allowed its eggs to accumulate in the ovary, providing the greatest number of offspring within a three week span.

Three new Nearctic species of Telenomus (Hymenoptera: Scelionidae) attacking Tabanidae eggs

2004 ◽  
Vol 136 (1) ◽  
pp. 43-60 ◽  
Author(s):  
Mahmood Iranpour ◽  
Terry D. Galloway
Keyword(s):  
New Species ◽  
New World ◽  
Egg Parasitoids ◽  
Identification Key ◽  
Type Specimens ◽  
World Species ◽  
Diagnostic Characters ◽  
Three New Species

AbstractThree new species of Tabanidae egg parasitoids are described: Telenomus hybomitraesp. nov. and Telenomus utilissp. nov., both reared from eggs of Hybomitra nitidifrons nuda (McDunnough) and Hybomitra lasiophthalma Macquart, and Telenomus chrysopsissp. nov., reared from eggs of Chrysops aestuans Wulp, Chrysops excitans Walker, and Chrysops mitis Osten Sacken. Specimens of these species were compared with type specimens of known New World species of scelionid parasitoids attacking tabanid eggs. Diagnostic characters and identification key to the Nearctic species are provided.

Penetration and encapsulation of the larval endoparasitoid Exorista larvarum (Diptera: Tachinidae) in the factitious host Galleria mellonella (Lepidoptera: Pyralidae)

2013 ◽  
Vol 104 (2) ◽  
pp. 203-212 ◽  
Author(s):  
A. Valigurová ◽  
V. Michalková ◽  
P. Koník ◽  
M.L. Dindo ◽  
M. Gelnar ◽  
...  
Keyword(s):  
Galleria Mellonella ◽  
Larval Instar ◽  
Posterior Part ◽  
Immunological Response ◽  
Dark Spot ◽  
Foreign Objects ◽  
Factitious Host ◽  
Lepidoptera Pyralidae ◽  
Cellular Defence ◽  
Host Tissues

AbstractThe tachinid fly Exorista larvarum (L.) (Diptera: Tachinidae) is a polyphagous larval endoparasitoid that deposits its eggs on the host exoskeleton of lepidopteran and tenthredinid larvae. The attachment of larval E. larvarum and the formation of the respiratory funnel were studied during infestation in the last larval instar of the wax moth, Galleria mellonella (L.) (Lepidoptera: Pyralidae). The tachinid larvae burrow through the host integument after hatching, using their robust cephalopharyngeal skeleton, leaving a dark spot at the point of their penetration as a result of host cuticle melanization. Endoparasitoid penetration induces the host cellular defence, resulting in the formation of a haemocyte capsule consisting of multi-cellular sheaths. This enveloping capsule later undergoes melanization, which is mostly obvious towards the posterior part of the endoparasitoid. The endoparasitoid uses the host encapsulation response to build a respiratory funnel from the modified host integument, leading to the host surface. The encapsulated larva remains attached to the respiratory funnel via an anal hook and cuticular spines until fully developed. Additional immunohistochemical analyses were used to study host–parasitoid interactions. Indirect immunofluorescence showed no labelling of potential tachinid antigens and confirmed no effect on the surrounding host tissues. A simulated parasitization with coated polybead microspheres revealed the mortal impact of tachinid antigens to the host. Hosts injected with antigen-coated polybeads died as a consequence of an acute and extensive immunological response to the tachinid antigens and not due to the trauma caused by foreign objects inside their body.

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