Efficacy of Selected Insecticides Against Eggs of Euschistus servus and Acrosternum hilare (Hemiptera: Pentatomidae) and the Egg Parasitoid Telenomus podisi (Hymenoptera: Scelionidae)

2011 ◽  
Vol 104 (1) ◽  
pp. 137-142 ◽  
Author(s):  
A. L. Koppel ◽  
D. A. Herbert ◽  
T. P. Kuhar ◽  
S. Malone ◽  
M. Arrington
Keyword(s):  
Egg Parasitoid ◽  
Acrosternum Hilare ◽  
Euschistus Servus ◽  
Telenomus Podisi

scholarly journals Using Microscopy to Assess Chorion Structural Integrity and Parasitoid Oviposition Sites on Stink Bug (Hemiptera: Pentatomidae) Eggs

2010 ◽  
Vol 17 (1) ◽  
pp. 114-117 ◽  
Author(s):  
A.L. Koppel ◽  
D.A. Herbert ◽  
E.W. Westbrook
Keyword(s):  
Structural Integrity ◽  
Stink Bug ◽  
Podisus Maculiventris ◽  
Stink Bugs ◽  
Acrosternum Hilare ◽  
Euschistus Servus ◽  
Murgantia Histrionica ◽  
Telenomus Podisi ◽  
Microscopy Images ◽  
Oviposition Sites

AbstractPrevious efficacy studies found that many insecticides used by growers could be having an adverse effect on egg parasitoids (Telenomus podisi) developing in the eggs of the brown stink bug (Euschistus servus), while unhatched stink bugs experienced lower levels of mortality. One plausible explanation for this was that insecticides might enter parasitized eggs more readily via oviposition wounds. Parasitized E. servus eggs, as well as nonparasitized stink bug (Acrosternum hilare, E. servus, Murgantia histrionica, and Podisus maculiventris) eggs, were examined using electron microscopy. Egg response to perforation by a tungsten probe served as a control. Microscopy images depicted the chorion surface as characterized by a matrix of ridges and micropylar processes in a ring around the margin of the operculum. Observations of oviposition sites showed a “scab” formed where the ovipositor penetrated the chorion, and at sites penetrated by the probe. These formations appeared to be the result of fluids from inside the egg leaking out, drying, and hardening after oviposition or probe perforation, suggesting that the response was not due to substances secreted by the parasitoid. Further, no open wounds or holes were seen to increase the possibility of insecticides entering parasitized eggs.

An Improved Trap for Monitoring Stink Bugs (Heteroptera: Pentatomidae) in Apple and Peach Orchards

2006 ◽  
Vol 41 (1) ◽  
pp. 9-21 ◽  
Author(s):  
Henry W. Hogmire ◽  
Tracy C. Leskey
Keyword(s):  
Decision Making ◽  
Stink Bug ◽  
Stink Bugs ◽  
Acrosternum Hilare ◽  
Euschistus Servus ◽  
Capture Mechanism ◽  
Green Stink Bug ◽  
Heteroptera Pentatomidae ◽  
Improved Design ◽  
Decision Making Tool

Capture of stink bugs (Heteroptera: Pentatomidae) in apple orchards with yellow pyramid traps baited with Euschistus spp. (Heteroptera: Pentatomidae) aggregation pheromone, methyl (2E,4Z)-decadienoate, was 4 fold greater when traps were topped with a 3.8-L jar with a 1.6 cm diameter opening and trimmed wire edging than with a 1.9-L jar with a 5 cm diameter opening with no wire edging. Stink bug capture in the 3.8-L jar top was unaffected by the presence or size of an insecticide ear tag, indicating that this improved design led to increased captures by reducing escape. Sixty-four percent fewer stink bugs escaped from 3.8-L jar tops with the improved capture mechanism than from the 1.9-L jar tops. Green stink bug, Acrosternum hilare (Say), was more susceptible to the presence of the insecticide ear tag than the brown stink bug, Euschistus servus (Say), with dusky stink bug, E. tristigmus (Say), exhibiting high mortality in traps with and without ear tags. Among baited and unbaited pyramid traps with different visual stimuli, fewer captures were recorded in black pyramid traps than in clear, yellow, green or white pyramid traps. Similar numbers of brown stink bugs were captured in yellow pyramid traps deployed on the ground between trees or on horizontal branches within trees in the orchard border row. Captures of dusky and green stink bugs were greater in the tree pyramid, especially from August to mid-October. Relationships between stink bug capture and injury will need to be determined before this trap can be incorporated as a decision-making tool in pest management programs.

Influence of original host on chemotaxic behaviour and parasitism in Telenomus podisi Ashmead (Hymenoptera: Platygastridae)

2014 ◽  
Vol 104 (6) ◽  
pp. 781-787 ◽  
Author(s):  
R. Tognon ◽  
J. Sant'Ana ◽  
S.M. Jahnke
Keyword(s):  
Egg Parasitoid ◽  
Control Agent ◽  
Stink Bug ◽  
Natural Control ◽  
Field Bioassay ◽  
Original Host ◽  
Synthetic Sex Pheromone ◽  
Control Programmes ◽  
Telenomus Podisi ◽  
The Impact

AbstractThe egg parasitoid Telenomus podisi is a natural control agent of pentatomids, including Euschistus heros and Tibraca limbativentris, and success of parasitism is dependent upon the parasitoid finding the host. We tested the influence of host egg volatiles and the synthetic sex pheromone (zingiberenol) of T. limbativentris on chemotaxic behaviour of T. podisi, as well as, the impact of the original host on parasitoid selection. We used mated female T. podisi (48 h old) that emerged from the eggs of T. limbativentris or E. heros. The bioassays related to chemotaxy were performed in a Y-tube olfactometer and, to parasitism success, in laboratory and semi-field conditions. Telenomus podisi females that emerged from either the stink bug eggs, chose the pheromone more than control, or the pheromone plus eggs of E. heros in the semi-field bioassay, led to greater parasitism. Females that emerged from E. heros eggs chose egg volatiles from their original host rather than those from T. limbativentris, while females emerging from T. limbativentris, chose the egg volatiles of both hosts equally. When T. limbativentris was the original host, T. podisi females parasitized T. limbativentris over E. heros, while those emerging from E. heros exclusively parasitized E. heros eggs. These results demonstrated that T. podisi is more likely to parasitize the host in which it developed and that the original host can exert influence on the choice by those parasitoids. Understanding how the factors that mediate host–parasitoid communication are interrelated can help biological control programmes establish more effective and reliable tools with T. podisi.

scholarly journals No impact of Bt soybean that express Cry1Ac protein on biological traits of Euschistus heros (Hemiptera, Pentatomidae) and its egg parasitoid Telenomus podisi (Hymenoptera, Platygastridae)

2014 ◽  
Vol 58 (3) ◽  
pp. 285-290 ◽  
Author(s):  
Gabriela Vieira Silva ◽  
Amarildo Pasini ◽  
Adeney de Freitas Bueno ◽  
Orcial Ceolin Bortolotto ◽  
Gustavo Caselato Barbosa ◽  
...  
Keyword(s):  
Egg Parasitoid ◽  
Biological Traits ◽  
Euschistus Heros ◽  
Telenomus Podisi ◽  
Cry1ac Protein

Eavesdropping on sexual vibratory signals of stink bugs (Hemiptera: Pentatomidae) by the egg parasitoid Telenomus podisi

2007 ◽  
Vol 73 (4) ◽  
pp. 637-649 ◽  
Author(s):  
Raúl A. Laumann ◽  
Maria Carolina Blassioli Moraes ◽  
Andrej Čokl ◽  
Miguel Borges
Keyword(s):  
Egg Parasitoid ◽  
Stink Bugs ◽  
Telenomus Podisi ◽  
Vibratory Signals

Release of the egg parasitoid Telenomus podisi to manage the Neotropical Brown Stink Bug, Euschistus heros, in soybean production

2020 ◽  
Vol 137 ◽  
pp. 105310
Author(s):  
Adeney de Freitas Bueno ◽  
Érica Caroline Braz ◽  
Bruna Magda Favetti ◽  
José de Barros França-Neto ◽  
Gabriela Vieira Silva
Keyword(s):  
Egg Parasitoid ◽  
Stink Bug ◽  
Soybean Production ◽  
Euschistus Heros ◽  
Telenomus Podisi

scholarly journals Egg parasitoid wasps as natural enemies of the neotropical stink bug Dichelops melacanthus

2010 ◽  
Vol 45 (5) ◽  
pp. 442-449 ◽  
Author(s):  
Raúl Alberto Laumann ◽  
Maria Carolina Blassioli Moraes ◽  
Joseane Padilha da Silva ◽  
Afrânio Márcio Corrêa Vieira ◽  
Samantha da Silveira ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Egg Parasitoid ◽  
Immature Stage ◽  
Parasitoid Wasps ◽  
Stink Bug ◽  
Control Programs ◽  
Ecological Aspects ◽  
First Choice ◽  
Stage Development ◽  
Telenomus Podisi

The objective of this work was to determine the potential of five species of Scelionidae wasps - Telenomus podisi, Trissolcus basalis, Trissolcus urichi, Trissolcus teretis and Trissolcus brochymenae - as natural enemies of the neotropical stink bug Dichelops melacanthus, and to determine if the presence of eggs of other stink bug species influences the parasitism and development of the parasitoids. Two kinds of experiments were done in laboratory: without choice of hosts (eggs of D. melacanthus) and with choice (eggs of D. melacanthus and of Euschistus heros). Biological parameters, including proportion of parasitism, immature survivorship, progeny sex ratio, immature stage development period, and host preference were recorded. All the evaluated parasitoids can parasitize and develop on D. melacanthus eggs. The first choice of eggs did not influence the proportion of D. melacanthus eggs parasitized by Tr. basalis, Tr. teretis or Tr. brochymenae. However, D. melacanthus eggs as the first choice of Te. podisi and Tr. urichi increased, respectively, 9 and 14 times the chance for parasitism on eggs of this species. Behavioral and ecological aspects of parasitoids should be considered prior to their use in biological control programs.

scholarly journals Scelionidae (Hymenoptera) parasitizing eggs of Bagrada hilaris (Hemiptera, Pentatomidae) in Mexico

2019 ◽  
Vol 73 ◽  
pp. 143-152 ◽  
Author(s):  
Moisés Felipe-Victoriano ◽  
Elijah J. Talamas ◽  
Sergio R. Sánchez-Peña
Keyword(s):  
Egg Parasitoid ◽  
Future Research ◽  
Biological Control Agents ◽  
Trissolcus Basalis ◽  
Parasitoid Species ◽  
Percent Parasitism ◽  
The Family ◽  
High Resolution Images ◽  
Telenomus Podisi ◽  
First Time

The painted bug or bagrada bug, Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae), is a key pest of crops in the family Brassicaceae. In this work, three species of Scelionidae (Hymenoptera) are reported for the first time as parasitoids of painted bug eggs in Mexico, at Saltillo, state of Coahuila: Gryon myrmecophilum (Ashmead), Telenomus podisi Ashmead and Trissolcus basalis (Wollaston). This is also the first report of a species of the widespread genus Telenomus as an egg parasitoid of B. hilaris outside of India. Total percent parasitism, high resolution images, and CO1 sequences are provided for each species. In the future, research in Mexico should be carried out on parasitoid species presented in this work to determine their potential as biological control agents and the feasibility of augmentative, classical or inoculative biocontrol strategies for integrated pest management.

Impact of Insecticides Used in Soybean Crops to the Egg Parasitoid Telenomus podisi (Hymenoptera: Platygastridae)

2017 ◽  
Vol 47 (2) ◽  
pp. 281-291 ◽  
Author(s):  
C S Stecca ◽  
A F Bueno ◽  
A Pasini ◽  
D M Silva ◽  
K Andrade ◽  
...  
Keyword(s):  
Egg Parasitoid ◽  
Telenomus Podisi

scholarly journals Egg parasitoid exploitation of plant volatiles induced by single or concurrent attack of a zoophytophagous predator and an invasive phytophagous pest

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Letizia Martorana ◽  
Jacques Brodeur ◽  
Maria Cristina Foti ◽  
Alfonso Agrò ◽  
Stefano Colazza ◽  
...  
Keyword(s):  
Broad Bean ◽  
Feeding Activity ◽  
Egg Parasitoid ◽  
Plant Volatile ◽  
Bean Plants ◽  
Defence Signalling ◽  
Insect Predators ◽  
Telenomus Podisi ◽  
Defence Strategies ◽  
The Impact

AbstractZoophytophagous insect predators can induce physiological responses in plants by activating defence signalling pathways, but whether plants can respond to facultative phytophagy by recruiting natural enemies remains to be investigated. In Y-tube olfactometer bioassays, using a system including a Vicia faba plant, the zoophytophagous predator Podisus maculiventris and the egg parasitoid Telenomus podisi, we first demonstrated that T. podisi females are attracted by broad bean plants damaged by feeding activity of P. maculiventris and on which host egg masses had been laid, while they are not attracted by undamaged plants or plants damaged by feeding activity alone. In a second experiment, we evaluated the impact of the invasive phytophagous pest Halyomorpha halys on this plant volatile-mediated tritrophic communication. Results showed that the invasive herbivorous adults do not induce plants to recruit the native egg parasitoid, but they can disrupt the local infochemical network. In fact, T. podisi females are not attracted by volatiles emitted by plants damaged by H. halys feeding alone or combined with oviposition activity, nor are they attracted by plants concurrently infested by P. maculiventris and H. halys, indicating the specificity in the parasitoid response and the ability of the invasive herbivore in interrupting the semiochemical communication between plants and native egg parasitoids. To the best of our knowledge, this is the first study showing that zoophytophagous predator attacks induce indirect plant defences similarly to those defence strategies adopted by plants as a consequence of single or concurrent infestations of herbivorous insects.

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