Some bionomic dates on the parasite Trichogramma evanescens Westwood in the eggs of Anagasta kuehniella Zeller

2009 ◽  
Vol 79 (1-4) ◽  
pp. 332-335 ◽  
Author(s):  
H. Th. Farghaly
Keyword(s):  
Trichogramma Evanescens ◽  
Anagasta Kuehniella

Biological effects of Bacillus thuringiensis on the egg parasitoid, Trichogramma evanescens

1985 ◽  
Vol 6 (2) ◽  
pp. 145-148 ◽  
Author(s):  
H. S. Salama ◽  
F. N. Zaki
Keyword(s):  
Bacillus Thuringiensis ◽  
Spodoptera Littoralis ◽  
Biological Effects ◽  
Egg Parasitoid ◽  
Adult Parasite ◽  
Immature Stages ◽  
Trichogramma Evanescens ◽  
Anagasta Kuehniella ◽  
Honey Solution

AbstractFeeding of the adult parasite of Trichogramma evanescens Westwood on a honey solution containing 500 μg of Bacillus thuringiensis var. galleriae HD-129 for 4–5 days had no effect on their longevity, productivity or their capability to parasitize the host eggs of Spodoptera littoralis (Boisdüvalle) or Anagasta kuehniella Zeller. After spraying the freshly laid host eggs with B. thuringiensis at the same concentration, a significant decrease was observed in the percentage of parasitism. No deleterious effects were observed in the development of the immature stages of the parasite and the percentage of its emergence, as affected by B. thuringiensis, when applied to the host eggs before or after parasitism.

scholarly journals Comparative demography of the exotic Harmonia axyridis with other aphidophagous coccinellids reared on artificial diet

2014 ◽  
Vol 49 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Julianne Milléo ◽  
Francisco Sales Fernandes ◽  
Wesley Augusto Conde Godoy
Keyword(s):  
Life Table ◽  
Harmonia Axyridis ◽  
Reproductive Rate ◽  
The Other ◽  
Adult Longevity ◽  
Net Reproductive Rate ◽  
Anagasta Kuehniella ◽  
Survival Percentage ◽  
Comparative Demography ◽  
Biological Aspects

The objective of this work was to compare biological aspects and life table parameters of the coccinellids Harmonia axyridis, Cycloneda sanguineaand Hippodamia convergens. Insects were fed eggs of Anagasta kuehniella, and reared at 24.5±1ºC, 70±10% relative humidity, with a 12 hour photophase. Hippodamia convergenstook about 1.6 day to complete development, longer than H. axyridis, and 2.4 day longer than C. sanguinea.At immature stages, H. axyridisexhibited the highest survival percentage (49.2%), in comparison to the other coccinellids. For mean adult longevity, H. convergenswas deficient, in comparison with the other species. Mean period of pre oviposition was the longest in C. sanguinea; the longest oviposition time occurred for H. axyridis; and the post oviposition period was similar between the coccinellids. Considering the reproductive parameters, H. axyridisshowed the best performance in all aspects. For life table, the values of H. convergenswere higher than, although close, to those of H. axyridis. Nevertheless, the high net reproductive rate of H. axyridis showed this species potential to increase population size. The biological characteristics of the exotic H. axyridis favors its invasion and establishment in Brazil, corroborating results noticed in other countries.

scholarly journals Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae)

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Naglaa F. Abdel-Hameid ◽  
I. R. M. Elzoghby ◽  
A. L. Mehany ◽  
W. A. A. Sayed
Keyword(s):  
Gamma Irradiation ◽  
Cold Storage ◽  
Mass Rearing ◽  
Egg Parasitoid ◽  
Sitotroga Cerealella ◽  
Trichogramma Evanescens ◽  
Control Programs ◽  
Angoumois Grain Moth ◽  
Rearing Techniques ◽  
The Times

AbstractThe performance of parasitism by the egg parasitoid, Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) on eggs of Angoumois grain moth, Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) was investigated under cold storage and gamma irradiation treatments of the host eggs. Cold storage treatment could improve the parasitoid mass rearing techniques and reduced the costs of biological control programs, while gamma irradiation might be used as a supplementary support at the times of high demand. The suitability of the S. cerealella eggs, stored at – 20 °C for 0.5, 1, or 2 h. as a host for T. evanescens was evaluated. The sensitivity of S. cerealella eggs to gamma irradiation treatments and the acceptability of irradiated eggs for parasitism by T. evanescens females for the parental P and F1 generations were examined. The results revealed that parasitism was drastically reduced more than adult’s emergence and sex-ratio (% of females) after cold storage periods of S. cerealella eggs. Moreover, the parasitism percentages were relatively reduced to (97.1, 96.1, 93.03, and 92.7 %) after irradiating the S. cerealella eggs at 40, 60, 80, and 100 Gy, respectively than the control (97.3% emergence). The percentages of emergence and females’ percent were slightly decreased by gamma irradiation doses, while, equal preferred by the F1 generation of parasitoid that produced from irradiated S. cerealella eggs.

scholarly journals Synthesis Method for Thiosulfonate and Report of Its Insecticidal Activity in Anagasta kuehniella (Lepidoptera: Pyralidae)

2012 ◽  
Vol 13 (12) ◽  
pp. 15241-15251 ◽  
Author(s):  
Edson dos Santos ◽  
Fernando Gonçalves ◽  
Paulo Prado ◽  
Daniele Sasaki ◽  
Dênis de Lima ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Synthesis Method ◽  
Anagasta Kuehniella ◽  
Lepidoptera Pyralidae

scholarly journals Bioatividade de produtos fitossanitários utilizados na cultura do tomateiro (Lycopersicon esculentum Mill.) a Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) nas gerações F1 e F2

2003 ◽  
Vol 27 (2) ◽  
pp. 261-270 ◽  
Author(s):  
Geraldo Andrade Carvalho ◽  
José Roberto Postali Parra ◽  
Gilberto Casadei Baptista
Keyword(s):  
Bacillus Thuringiensis ◽  
Lycopersicon Esculentum ◽  
Trichogramma Pretiosum ◽  
Anagasta Kuehniella ◽  
Lycopersicon Esculentum Mill

A bioatividade de dezoito produtos químicos utilizados no controle de pragas e doenças do tomateiro, sobre duas linhagens de Trichogramma pretiosum Riley, 1879 (L9=Alegre, ES e L10= Venda Nova do Imigrante, ES), nas gerações F1 e F2, foi investigada em laboratório. Ovos de Anagasta kuehniella (Zeller) contendo o parasitóide em diferentes estágios de desenvolvimento (ovo-larva, pré-pupa e pupa) foram tratados por meio de imersão nas respectivas caldas químicas. Os inseticidas triflumuron, clorfluazuron, deltametrina, Bacillus thuringiensis, lambdacialotrina, teflubenzuron, acefato, pirimicarb e ciromazina, e os fungicidas benomil, iprodiona, clorotalonil e dimetomorf, independente da linhagem, não reduziram a longevidade das fêmeas de T. pretiosum da geração F1. Os inseticidas abamectin, cartap, metamidofós e lambdacialotrina afetaram a razão sexual de indivíduos da geração F1, e não reduziram a taxa de emergência de parasitóides da F2, independente do estágio de desenvolvimento e da origem da população de T. pretiosum. Parasitóides de Venda Nova do Imigrante, ES (L10) mostraram-se mais susceptíveis que os de Alegre, ES (L9) aos efeitos dos compostos avaliados. De modo geral, a fase de pupa de T. pretiosum, independente da população, apresentou maior tolerância aos produtos testados. Recomenda-se a realização de novos testes para outras populações desse parasitóide que serão utilizadas no controle de pragas, pois podem responder de forma diversa aos produtos fitossanitários avaliados.

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