Inheritance of polygenic but stable pyriproxyfen resistance in a bio‐control agent Chrysoperla carnea (Neuroptera: Chrysopidae): cross‐resistance and realized heritability

2020 ◽  
Vol 76 (12) ◽  
pp. 4009-4017 ◽  
Author(s):  
Muhammad Mudassir Mansoor ◽  
Sarfraz Ali Shad
Keyword(s):  
Control Agent ◽  
Cross Resistance ◽  
Chrysoperla Carnea ◽  
Realized Heritability

Resistance of green lacewing, Chrysoperla carnea Stephens to nitenpyram: Cross-resistance patterns, mechanism, stability, and realized heritability

2017 ◽  
Vol 135 ◽  
pp. 59-63 ◽  
Author(s):  
Muhammad Mudassir Mansoor ◽  
Abu Bakar Muhammad Raza ◽  
Naeem Abbas ◽  
Muhammad Anjum Aqueel ◽  
Muhammad Afzal
Keyword(s):  
Cross Resistance ◽  
Chrysoperla Carnea ◽  
Realized Heritability ◽  
Green Lacewing ◽  
Resistance Patterns

Fitness cost and realized heritability of resistance to spinosad in Chrysoperla carnea (Neuroptera: Chrysopidae)

2014 ◽  
Vol 104 (6) ◽  
pp. 707-715 ◽  
Author(s):  
N. Abbas ◽  
M.M. Mansoor ◽  
S.A. Shad ◽  
A.K. Pathan ◽  
A. Waheed ◽  
...  
Keyword(s):  
Insect Pests ◽  
Biological Control Agent ◽  
Ornamental Plants ◽  
Intrinsic Rate ◽  
Control Agent ◽  
Population Increase ◽  
Relative Fitness ◽  
Laboratory Population ◽  
Chrysoperla Carnea ◽  
Realized Heritability

AbstractThe common green lacewing Chrysoperla carnea is a key biological control agent employed in integrated pest management (IPM) programs for managing various insect pests. Spinosad is used for the management of pests in ornamental plants, fruit trees, vegetable and field crops all over the world, including Pakistan. A field-collected population of C. carnea was selected with spinosad and fitness costs and realized heritability were investigated. After selection for five generations, C. carnea developed 12.65- and 73.37-fold resistance to spinosad compared to the field and UNSEL populations. The resistant population had a relative fitness of 1.47, with substantially higher emergence rate of healthy adults, fecundity and hatchability and shorter larval duration, pupal duration, and development time as compared to a susceptible laboratory population. Mean relative growth rate of larvae, intrinsic rate of natural population increase and biotic potential was higher for the spinosad-selected population compared to the susceptible laboratory population. Chrysoperla species are known to show resistance to insecticides which makes the predator compatible with most IPM systems. The realized heritability (h2) value of spinosad resistance was 0.37 in spinosad-selected population of C. carnea.

scholarly journals Land-Use Effect on Olive Groves Pest Prays oleae and on Its Potential Biocontrol Agent Chrysoperla carnea

Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 46
Author(s):  
João Frederico Alves ◽  
Sara Mendes ◽  
António Alves da Silva ◽  
José Paulo Sousa ◽  
Daniel Paredes
Keyword(s):  
Biological Control ◽  
Land Use ◽  
Biological Control Agent ◽  
Control Agent ◽  
Agricultural Landscapes ◽  
Chrysoperla Carnea ◽  
Land Uses ◽  
Prays Oleae ◽  
Potential Biocontrol Agent ◽  
Olive Groves

Olive growing has been intensified through the simplification of agricultural landscapes. In order to rethink the environmental drawbacks of these practices, conservation biological control techniques have been examined. In this work, Prays oleae and its natural enemy Chrysoperla carnea were monitored to account for the effects of the amount and diversity of different land-uses. We found that C. carnea showed an attraction to areas with high abundances of P. oleae but this predator did not display any affection by the different land-uses. Inversely, P. oleae abundance was lower in diverse landscapes and higher in simplified ones. Importantly, higher abundances of C. carnea were related to lower infestation levels of P. oleae in the late part of the season. These results corroborate the attraction of C. carnea to the olive moth, highlighting the potential of C. carnea as a biological control agent of this pest, assert that the promotion of land-use diversity can reduce P. oleae and confirm that landscapes dominated by olive groves can promote this pest. The present study aims at contributing to the discussion about the management of agricultural ecosystems by providing farmers with sustainable alternatives that do not have harmful effects on the environment and public health.

Resistance Risk Evaluated by Metaflumizone Selection and the Effects on Toxicities Over Other Insecticides in Spodoptera exigua (Lepidoptera: Noctuidae)

2019 ◽  
Vol 112 (5) ◽  
pp. 2354-2361
Author(s):  
Xing-Xing Sun ◽  
Hong-Yang Li ◽  
Ying-Jie Jiang ◽  
Jun-Xi Zhang ◽  
Hui-Ling Gu ◽  
...  
Keyword(s):  
Spodoptera Exigua ◽  
Channel Blocker ◽  
Resistance Management ◽  
Cross Resistance ◽  
Realized Heritability ◽  
Sodium Channel Blocker ◽  
Resistance Risk ◽  
Resistance Evolution ◽  
Threshold Trait ◽  
Lepidoptera Noctuidae

Abstract Metaflumizone is a novel semicarbazone insecticide. It functions as a sodium channel blocker insecticide (SCBI) with excellent insecticidal activity on most economically important lepidopterous pests. This study assessed the resistance risk of Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) to metaflumizone in the laboratory and the effects of metaflumizone selection on toxicities to other insecticides. Spodoptera exigua collected from a field population at Huizhou in 2012 were successively challenged by metaflumizone to evaluate the risk of resistance evolution. Twelve generations of selection increased resistance to metaflumizone by 3.4-fold and threshold trait analysis revealed that the realized heritability (h2) of this resistance was 0.086. When h2 was equal to 0.086 and 90% of individuals were killed at each generation, LC50 to metaflumizone increased by 10-fold after 15 generations. The selection by metaflumizone did not increase the resistance to indoxacarb, chlorantraniliprole, spinosad, methomyl, or endosulfan, suggesting a lack of cross-resistance. However, metaflumizone challenge upheld the recession of resistance to emamectin benzoate, chlorfluazuron, and tebufenozide. The block of resistance drops by metaflumizone exposure implied a possible cross-resistance between metaflumizone and these three insecticides. These results contribute to integrated resistance management of S. exigua.

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