aulacorthum solani
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Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 709
Author(s):  
Taro Saito ◽  
Michael Brownbridge

A generalist predatory mite, Anystis baccarum (L.), has been identified as a key predator of small, soft-bodied pest species in various agroecosystems around the world. The foxglove aphid Aulacorthum solani (Keltenbach) is a new problematic pest in Canadian greenhouses. Laboratory colonies of A. baccarum were established and its predatory efficacy against A. solani was assessed. In laboratory trials, A. baccarum ate approximately one adult aphid or seven first instar aphids in 24 h. In a greenhouse bench trial on sweet peppers with the free-flying aphid parasitoid, Aphidius ervi Haliday, the population dynamics of A. solani in the presence or absence of A. baccarum was evaluated. Although the parasitoid alone successfully eradicated A. solani, when A. baccarum were present on the plants, the aphid population was eradicated more rapidly. Fruit yield was also 15% higher from plants where A. baccarum was released than the control (without A. baccarum). Furthermore, plants were naturally infested by Frankliniella occidentalis (Pergande) during the trial, which caused visible feeding damage to the fruits. Anystis baccarum also predates on thrips and thrips’ feeding damage to the fruits was reduced on plants where A. baccarum was released. Anystis baccarum was able to establish in sweet peppers and was determined to be complementary to the current practice of using A. ervi for the biological control of A. solani.



2021 ◽  
Author(s):  
Angela Whittaker

Abstract A. solani is becoming an increasingly economic important pest of several agricultural crops worldwide and has recently undergone a status change from an occasional pest to a serious pest of vegetables and ornamental plants in greenhouses of North America and the UK (Jandricic et al., 2010, 2014a). A. solani was first recorded on citrus in the north of Iran in 2003-2004 (Alavi and Rezvani, 2007).





2021 ◽  
Vol 83 (3) ◽  
pp. 345-349
Author(s):  
Jandrajupalli Sridhar ◽  
Vallepu Venkateswarlu ◽  
Neelam Kumari ◽  
Anuj Bhatnagar ◽  
Baswaraj R ◽  
...  


2020 ◽  
Vol 52 (4) ◽  
pp. 354-361
Author(s):  
Hong-Min Koh ◽  
Bo Yoon Seo ◽  
Kyung Hye Kim ◽  
Ji-Min Kim ◽  
Taeklim Lee ◽  
...  


Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 296
Author(s):  
Bo Yoon Seo ◽  
Eun Young Kim ◽  
Jeong Joon Ahn ◽  
Yonggyun Kim ◽  
Sungtaeg Kang ◽  
...  

We investigated several characteristics of the development and reproduction of the aphid Aulacorthum solani raised on soybean (Glycine max) at 10 constant temperatures between 2.5 and 30 °C, and described the relationship between temperature and several critical biological characteristics using mathematical models. We found that A. solani could survive and reproduce on soybean at temperatures ranging from 5 to 27.5 °C. High fecundity was observed at temperatures from 12.5 to 20 °C. The lower developmental threshold and thermal constant for this species’ nymphal stages were estimated to be 5.02 °C and 131.2 degree-days, respectively, using a linear model. The upper developmental threshold was estimated to be 33.9 °C using the Lactin-2 model. The optimum temperature for nymphal development was estimated to be 26.9 °C. The maximum total fecundity was estimated as ca. 76.9 nymphs per adult at 18.1 °C. The daily fecundity sharply increased at earlier adult ages, and slowly decreased thereafter until final parthenogenesis occurred, over a range of temperatures from 12.5 to 25 °C. The maximum daily fecundity was estimated to be ca. 6.1 nymphs per adult per day for a 5.2 day old of adult at 21.3 °C using an age- and temperature-dependent model of adult fecundity. In terms of life table statistics, the intrinsic rates of increase and the finite rate of increase were both highest at 25 °C, while the net reproductive rate was highest at 20 °C.



2020 ◽  
Vol 82 (1) ◽  
pp. 68
Author(s):  
K C Naga ◽  
Tanuja Buckseth ◽  
S Subhash ◽  
Aarti Bairwa ◽  
Gaurav Verma ◽  
...  


2018 ◽  
Vol 62 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Takanobu Kikuchi ◽  
Hiroshi Katoh ◽  
Kiyohiko Kagawa ◽  
Shoji Sonoda ◽  
Tamotsu Murai




2016 ◽  
Vol 124 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Ole Rechner ◽  
Sebastian Laurenz ◽  
Peter Hondelmann ◽  
Hans-Michael Poehling


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