scholarly journals Effect of temperature on cannibalism rate between green lacewings larvae (Chrysoperla carnea [Stephens], Neuroptera, Chrysopidae)

2009 ◽  
Vol 93 (1) ◽  
Author(s):  
Helena Rojht ◽  
Franc Budija ◽  
Stanislav Trdan
Keyword(s):  
Effect Of Temperature ◽  
Chrysoperla Carnea ◽  
Green Lacewings ◽  
Cannibalism Rate

scholarly journals Feeding Efficiency of Green Lacewing, Chrysoperla carnea (Stephens) against Different Species of Aphid in Laboratory Conditions

2017 ◽  
Vol 5 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Lok Bahadur Rana ◽  
Ram Prasad Mainali ◽  
Homan Regmi ◽  
Binayak Prasad RajBhandari
Keyword(s):  
Aphid Species ◽  
Corcyra Cephalonica ◽  
Chrysoperla Carnea ◽  
Green Lacewing ◽  
Predatory Efficiency ◽  
Polyphagous Predator ◽  
Green Lacewings ◽  
Feeding Efficiency ◽  
Rice Moth ◽  
Predatory Larva

Green lacewing, Chrysoperla carnea Stephens (Neuroptera: Chrysopidae) is the most effective polyphagous predator of different species of aphids and is commonly known as “aphid lion” . The experiment on feeding efficiency of green lacewing was studied in the laboratory of Entomology Division, NARC, Khumaltar, Lalitpur, Nepal from 21st , December 2015 to 26th, March 2016. The known number of predatory larva of green lacewings were fed with known number of seven different species of live aphid and frozen Corcyra eggs representing each treatment. The treatments were replicated four times. The predatory efficiency was calculated by counting the number of consumed host per day. The result revealed that the predatory efficiency of C. carnea larvae were increased from first to third instar and third instar were more voracious as compare to first two instars. It consumed significantly the highest rice moth, Corcyra cephalonica followed by Aphis craccivora and others aphid species, respectively. From this experiment, it is evident that the green lacewing is potent bio-agent against different aphid species and hence further research is required simultaneously in the farmer’s field conditions.Int. J. Appl. Sci. Biotechnol. Vol 5(1): 37-41

scholarly journals Metschnikowia chrysoperlae sp. nov., Candida picachoensis sp. nov. and Candida pimensis sp. nov., isolated from the green lacewings Chrysoperla comanche and Chrysoperla carnea (Neuroptera: Chrysopidae)

2004 ◽  
Vol 54 (5) ◽  
pp. 1883-1890 ◽  
Author(s):  
Sung-Oui Suh ◽  
Cara M. Gibson ◽  
Meredith Blackwell
Keyword(s):  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Sequence Comparison ◽  
Type Strain ◽  
Novel Species ◽  
The Other ◽  
Chrysoperla Carnea ◽  
Rrna Gene ◽  
Green Lacewings ◽  
Large Numbers

Fourteen yeast isolates comprising three taxa were cultured from digestive tracts of adult Chrysoperla species (Neuroptera: Chrysopidae) and their eggs. The yeast taxa were distinguished based on an estimated molecular phylogeny, DNA sequences and traditional taxonomic criteria. The new yeasts are closely related to Metschnikowia pulcherrima but are sufficiently distinguished by sequence comparison of rRNA gene sequences to consider them as novel species. Here, three novel species are described and their relationships with other taxa in the Saccharomycetes are discussed. Metschnikowia chrysoperlae sp. nov. (type strain, NRRL Y-27615T=CBS 9803T) produced needle-shaped ascospores and was the only teleomorph found. Large numbers of chlamydospores similar to those observed in M. pulcherrima were also produced. The other two novel species are asexual yeasts, Candida picachoensis sp. nov. (type strain, NRRL Y-27607T=CBS 9804T) and Candida pimensis sp. nov. (type strain, NRRL Y-27619T=CBS 9805T), sister taxa of M. chrysoperlae and M. pulcherrima. A specialized relationship between yeasts and lacewing hosts may exist, because the yeasts were isolated consistently from lacewings only. Although M. chrysoperlae was isolated from eggs and adult lacewings, suggesting the possibility of vertical transmission, no yeast was isolated from larvae.

scholarly journals Evaluation of Green Lacewings for Suppressing Azalea Lace Bug Populations in Nurseries

2000 ◽  
Vol 18 (4) ◽  
pp. 207-211 ◽  
Author(s):  
Paula M. Shrewsbury ◽  
Deborah C. Smith-Fiola
Keyword(s):  
Release Rate ◽  
Chrysoperla Carnea ◽  
Green Lacewing ◽  
Alternative Control ◽  
Lace Bug ◽  
Greenhouse Study ◽  
Green Lacewings ◽  
Lace Bugs ◽  
Percent Mortality ◽  
Augmentative Release

Abstract Greenhouse and nursery studies were conducted to determine an optimal release rate and efficacy of green lacewing (glw) larvae, Chrysoperla carnea (Stephens), for suppression of azalea lace bug (alb), Stephanitis pyrioides (Scott). In a greenhouse study, different densities of lace bugs (40 or 80 per plant) did not influence the percent mortality caused by green lacewings. However, greater numbers of green lacewing larvae released resulted in higher lace bug mortality (5 and 20 glw per plant resulted in an average lace bug mortality of 79% and 97%, respectively). Lacewing larvae released in a production nursery, at rates of 5/plant and 10/plant, and acephate (Orthene) significantly reduced lace bug populations, with green lacewings at 10/plant and acephate reducing lace bug densities more than green lacewings at 5/plant. In a second nursery trial, lacewing larvae released into production blocks of azaleas resulted in a 97% reduction in lace bugs. These studies suggest that augmentative release of green lacewing larvae may provide an alternative control tactic that can be integrated into lace bug pest management programs.

Optimization of a Phenylacetaldehyde-Based Attractant for Common Green Lacewings (Chrysoperla carnea s.l.)

2009 ◽  
Vol 35 (4) ◽  
pp. 449-458 ◽  
Author(s):  
Miklós Tóth ◽  
Ferenc Szentkirályi ◽  
József Vuts ◽  
Agostino Letardi ◽  
Maria Rosaria Tabilio ◽  
...  
Keyword(s):  
Chrysoperla Carnea ◽  
Green Lacewings

scholarly journals Phenylacetaldehyde: A chemical attractant for common green lacewings (Chrysoperla carnea s.l., Neuroptera: Chrysopidae)

2006 ◽  
Vol 103 (1) ◽  
pp. 267-271 ◽  
Author(s):  
Miklos TOTH ◽  
Andras BOZSIK ◽  
Ferenc SZENTKIRALYI ◽  
Agostino LETARDI ◽  
Maria Rosaria TABILIO ◽  
...  
Keyword(s):  
Chrysoperla Carnea ◽  
Green Lacewings ◽  
Chemical Attractant

scholarly journals Modeling of the effect of temperature on developmental rate of common green lacewing, Chrysoperla carnea (Steph.) (Neuroptera: Chrysopidae)

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Hossein Ranjbar Aghdam ◽  
Zahra Nemati
Keyword(s):  
Nonlinear Models ◽  
Biological Significance ◽  
Developmental Rate ◽  
Larval Period ◽  
Effect Of Temperature ◽  
Coefficient Of Determination ◽  
Chrysoperla Carnea ◽  
Temperature Threshold ◽  
Immature Stages ◽  
Green Lacewing

Abstract Background The common green lacewing Chrysoperla carnea (Steph.) (Neuroptera: Chrysopidae) is a polyphagous and efficient predatory species commonly found in a wide range of agricultural habitats. It plays an important role in biological control of  pests. Main body The effect of temperature on developmental rate of the predator C. carnea was studied at 7 constant temperatures, 15, 20, 25, 27, 30, 32, and 35 °C, 50 ± 10% RH, and a photoperiod of 16:8 h (L:D). Six nonlinear models were evaluated to determine the trend of developmental rate of the predator in examined temperatures and to estimate thermal thresholds of development. Nonlinear models were evaluated based on coefficient of determination (R2), adjusted coefficient of determination (R2adj), residual sum of squares (RSS), and Akaike information criterion (AIC), beside biological significance of the estimated values for the model parameters. Among evaluated nonlinear models, Lactin-2 for all immature stages was the best-fitted model on observations, considering statistical criteria and biological significance of the estimations. The values of the lower temperature threshold by using Lacin-2 were 9.90, 10.90, 11.90, 11.40, 11.11, 11.61, and 11.30 °C for incubation period, 1st, 2nd, and 3rd larval instars, overall larval period, and pupal and total immature stages, respectively. The values of the upper temperature threshold for the mentioned developmental stages were 33.82, 37.66, 33.14, 34.04, 33.58, 32.14, and 32.18 °C, respectively. Estimated values for the optimal temperature for incubation period, 1st, 2nd, and 3rd larval instars, overall larval period, and pupal and total immature stages were 30.69, 30.22, 30.90, 30.34, 30.90, 31.75, and 31.72 °C, respectively. Short conclusion The results, in addition to determine thermal tolerance for the development of C. carnea, provided advantage information for better use of C. carnea in biological control programs.

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