scholarly journals Fate of multiple Bt proteins from stacked Bt maize in the predatory lady beetle Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)

2021 ◽  
Vol 268 ◽  
pp. 115421
Author(s):  
Michael Meissle ◽  
Stefanie Kloos ◽  
Jörg Romeis
2010 ◽  
Vol 64 (1) ◽  
pp. 51-52 ◽  
Author(s):  
Kent Fothergill ◽  
Wendy Moore ◽  
John Losey ◽  
Leslie L. Allee ◽  
Rebecca R. Smyth

2012 ◽  
Vol 52 (11) ◽  
pp. 134-140 ◽  
Author(s):  
Érica Sevilha Harterreiten-Souza ◽  
Pedro Henrique Brum Togni ◽  
Paloma Virgínia Gambarra Nitão Milane ◽  
Kelly Ramalho Cavalcante ◽  
Maria Alice de Medeiros ◽  
...  

The multicolored Asian lady beetle, Harmonia axyridis (Pallas, 1773), was first recorded in Brazil in 2002 in Paraná state and subsequently observed in Santa Catarina, Rio Grande do Sul and Minas Gerais. This species can spread to new areas and become dominant in the local community, reducing the density and diversity of native species, mainly Coccinellidae. The objective of this work was to record for the first time the occurrence of H. axyridis in the Federal District and its co-occurrence with other Coccinellidae species. The individuals were collected directly from plants at an organic farm in Taguatinga and in experimental fields of Embrapa Hortaliças, located in the Federal District, from August 2008 to January 2010. We collected 881 Coccinelids, and of these, 110 belong to the species H. axyridis. These were found exclusively on the following plants of the succinea group: maize, cabbage, cauliflower, broccoli, kale, cucumber, cotton, tomato and coriander. We also observed its co-occurrence with the following lady beetle species: Cycloneda sanguine (Linnaeus, 1763), Hippodamia convergens (Guerin-Meneville 1842), Eriopis connexa (German, 1824), Scymnus sp., Nephaspis sp., Azya luteipes (Mulsant, 1850), Hyperaspis festiva (Mulsant, 1850), Olla v-nigrum (Mulsant, 1866), Psyllobora sp. and Coleomegilla maculata (De Geer, 1775). So far, we have not found any negative interactions between H. axyridis and these species. This is the northernmost H. axyridis record in Brazil. Moreover, the region was previously considered to have a low probability of occurrence for this species. Therefore, this record confirms that H. axyridis presents great adaptive plasticity to new habitats.


2007 ◽  
Vol 42 (4) ◽  
pp. 496-500 ◽  
Author(s):  
Christine A. Nalepa

Field tests were conducted to determine if, at the conclusion of their autumn migratory flight, Harmonia axyridis (Pallas) are attracted to and preferentially alight on targets covered with the printed images of lady beetles. There was no significant difference in the number of beetles that landed on targets bearing depictions of coccinellids compared with the number that landed on blank, white controls. Results suggest that commercial traps that rely on images of lady beetles to attract incoming coccinellids are of little practical value.


Author(s):  
T Islam ◽  
G Das

Susceptibility of three predatory arthropods namely Asian lady beetle, Harmonia axyridis (Pallas), lynx spider, Lycosa pseudoannulata (Boescriberg and Strand), and wolf spider, Oxyopes javanus (Thorell) to four commonly used biorational molecules viz. buprofezin, spinosad, emamectin benzoate and abamectin were determined in a brinjal ecosystem. Biorational pesticides were applied singly and in some selected combinations and their toxicity on the predators was recorded up to three sprayings in a confined habitat. Buprofezin caused no significant mortality of predators (2.87%, 0.32%, 0.96% mean mortality per spray of Asian lady beetle, lynx spider, and wolf spider respectively) and was found most compatible among the biorational molecules. However, other three tested molecules were found highly toxic for all predatory natural enemies when applied singly or in combination with buprofezin. Spinosad was most toxic for Asian lady beetles (21.84% mean mortality per spray) and lynx spiders (15.32 % mean mortality per spray) whereas abamectin (17.78% mean mortality per spray) for wolf spiders. It was observed that the number of spraying was very crucial and had a proportionate relationship with the mortality percentage of predators. Based on this study it is suggested that buprofezin could be considered to incorporate safely in the IPM program for brinjal pest management.J. Bangladesh Agril. Univ. 15(2): 234-238, December 2017


2007 ◽  
Vol 33 (11) ◽  
pp. 2148-2155 ◽  
Author(s):  
François J. Verheggen ◽  
Quentin Fagel ◽  
Stéphanie Heuskin ◽  
Georges Lognay ◽  
Frédéric Francis ◽  
...  

2006 ◽  
Vol 7 (1) ◽  
pp. 12 ◽  
Author(s):  
T. L. Galvan ◽  
E. C. Burkness ◽  
W. D. Hutchison

As one component of an Integrated Pest Management program for Midwestern wine grapes, we examined the efficacy of several insecticides on adults of the multicolored Asian lady beetle, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae). For field trials, percentages of clusters with at least one H. axyridis were recorded for each plot before treatment and on the day of harvest. We also examined the efficacy of insecticides under laboratory conditions via two routes of exposure, topical application and insecticide residues. In the 2004 field trials, the percentage of clusters infested with H. axyridis adults at harvest was statistically lower in plots treated with bifenthrin applied 7 days before harvest (DBH), carbaryl 10 DBH, and in plots covered with floating row cover compared to the untreated plots. In 2005, the percentage of clusters infested with H. axyridis adults at harvest in plots treated with zeta-cypermethrin 7 DBH, bifenthrin 22 and 7 DBH, and imidacloprid 1 DBH was statistically lower than beetle infestation in the untreated plots. In the laboratory, bifenthrin, carbaryl, and thiamethoxam were lethal to H. axyridis adults 7 days after treatment. Based on the efficacy results, labeled insecticides, pre-harvest intervals, and the late-season influx of H. axyridis infestations, chemical control is currently limited to carbaryl, malathion, and/or imidacloprid. Accepted for publication 13 June 2006. Published 3 October 2006.


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