Behavioral response of the generalist predator Orius insidiosus to single and multiple herbivory by two cell content-feeding herbivores on rose plants

2019 ◽  
Vol 14 (2) ◽  
pp. 227-236 ◽  
Author(s):  
Ana Luiza V. Sousa ◽  
Diego B. Silva ◽  
Guilherme G. Silva ◽  
José Mauricio S. Bento ◽  
Maria Fernanda G. V. Penãflor ◽  
...  
Keyword(s):  
Behavioral Response ◽  
Generalist Predator ◽  
Orius Insidiosus ◽  
Cell Content ◽  
Multiple Herbivory

Potential of an alternative prey to disrupt predation of the generalist predator, Orius insidiosus, on the pest aphid, Aphis glycines, via short-term indirect interactions

2008 ◽  
Vol 98 (6) ◽  
pp. 631-639 ◽  
Author(s):  
N. Desneux ◽  
R.J. O'Neil
Keyword(s):  
Positive Impact ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Indirect Interactions ◽  
Prey Preference ◽  
Generalist Predator ◽  
Alternative Prey ◽  
Orius Insidiosus ◽  
Short Term ◽  
The Impact

AbstractGeneralist insect predators can significantly impact the dynamics of pest populations; and, using alternative prey, they can rapidly establish in disturbed agroecosystems. However, indirect interactions between prey can occur, leading to either increased or decreased predation on focal prey. The present paper demonstrates how alternative prey can disrupt predation by the hemipteran Orius insidiosus on the soybean aphid Aphis glycines via short-term indirect interactions. We used laboratory microcosms to measure the impact of the predator on the population growth of the aphid in the presence of alternative prey, soybean thrips Neohydatothrips variabilis, and we characterized the foraging behaviour of the predator to assess prey preference. We showed that O. insidiosus predation on aphids was reduced in the presence of thrips and that this positive impact on aphids increased as thrips density increased. Results from the behavioural experiment support the hypothesis of a prey preference toward thrips. When prey-pest ratio is aphid-biased, short-term apparent commensalism between prey occurs in favour of the most abundant prey (aphids) with no switching behaviour appearing in O. insidiosus. These results demonstrate that potential indirect interactions should be taken into account when considering O. insidiosus as a biocontrol agent against the soybean aphid.

Behavioral response of a generalist predator to chemotactile cues of two taxonomically distinct prey species

Chemoecology ◽  
2016 ◽  
Vol 26 (4) ◽  
pp. 153-162 ◽  
Author(s):  
Hellena Binz ◽  
Elena F. Kraft ◽  
Martin H. Entling ◽  
Florian Menzel
Keyword(s):  
Behavioral Response ◽  
Prey Species ◽  
Generalist Predator

NEMATODOSES OF RACONAL DOGS OF CELL CONTENT, THEIR DIAGNOSTICS AND PREVENTION

2019 ◽  
Vol 240 (4) ◽  
pp. 120-123
Author(s):  
L.A. Napisanova ◽  
◽  
O.B. Zhdanova ◽  
I.I. Okulova ◽  
O.V. Chasovskikh ◽  
...  
Keyword(s):  
Cell Content
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