scholarly journals Exploiting chemical ecology to manage hyperparasitoids in biological control of arthropod pests

2019 ◽  
Vol 76 (2) ◽  
pp. 432-443 ◽  
Author(s):  
Antonino Cusumano ◽  
Jeffrey A Harvey ◽  
Mitchel E Bourne ◽  
Erik H Poelman ◽  
Jetske Boer
2009 ◽  
Vol 100 (3) ◽  
pp. 367-371 ◽  
Author(s):  
O.L. Kvedaras ◽  
M. An ◽  
Y.S. Choi ◽  
G.M. Gurr

AbstractSilicon (Si) is known to have a role in constitutive plant defence against arthropod pests, and recent work has illustrated involvement in induced plant defences. The present tri-trophic study tested the hypothesis that Si increases natural enemy attraction to pest-infested plants and improves biological control. Cucumber plants treated with potassium silicate (Si+) and untreated control plants (Si−) were maintained in separately vented glasshouse compartments. Y-tube olfactometer studies showed that adult Dicranolaius bellulus were significantly more attracted to Si+ plants upon which Helicoverpa armigera larvae had fed compared with Si−, pest-infested plants. Predators were not significantly more attracted to Si+ plants when comparing uninfested cucumbers. In a field experiment, we placed H. armigera-infested and uninfested Si+ and Si− cucumber plants in a lucerne stand. Removal rates of H. armigera egg baits showed predation was greater for Si+ infested plants than for other treatments. Results suggest that Si applied to plants with a subsequent pest infestation increases the plants' attractiveness to natural enemies; an effect that was reflected in elevated biological control in the field.


1991 ◽  
Vol 71 (3) ◽  
pp. 887-914 ◽  
Author(s):  
J. L. Shipp ◽  
G. J. Boland ◽  
L. A. Shaw

Disease and arthropod pests are a continual problem for greenhouse vegetable production. These problems range from minor infestations to major disease or arthropod pest outbreaks that can destroy an entire crop. In Ontario, in the past, the major management strategy was pesticide control. However, many plant pathogen, insect and mite pests are resistant to registered pesticides and few new pesticides are being developed. Alternative control strategies exist or are being developed for most major pests. This review describes the current status of pesticide, cultural and biological control of disease and arthropod pests of greenhouse vegetables in Ontario and discusses the future possibilities for the integration of pest management practices utilizing plant resistance, nutrition, environment and biological control agents into an expert system approach. Key words: Vegetable (greenhouse) crops, integrated pest management


2021 ◽  
Vol 61 ◽  
pp. e20216198
Author(s):  
Ana Cristina Cerqueira Cavalcante ◽  
Peterson Rodrigo Demite ◽  
Antônio Carlos Lofego ◽  
Fabio Akashi Hernandes

Phytoseiid mites (Acari: Phytoseiidae) have been largely used for the biological control of arthropod pests. However, information on the phytoseiid fauna associated with plants of the Rio de Janeiro State, Brazil is still scanty. Surveys were carried out in two areas of Atlantic Forest in Rio de Janeiro State – Jaguanum island and Paraty. We report 11 species of seven genera from all three subfamilies. A complementary re-description is provided for Amblyseius impeltatus Denmark & Muma, 1973 and measurements are provided for ten other species.


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