Selective control of mite and collembolan pests of pastures and grain crops in Australia |
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| Authors: | Paul A Umina Aston L Arthur Stuart A McColl Ary A Hoffmann John MK Roberts |
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| Institution: | 1. Centre for Environmental Stress and Adaptation Research, Department of Zoology, The University of Melbourne, Parkville, Victoria 3010, Australia;2. Centre for Environmental Stress and Adaptation Research, Department of Genetics, The University of Melbourne, Parkville, Victoria 3010, Australia;3. CESAR Consultants, Suite 102, 55 Flemington Road, North Melbourne, Victoria 3051, Australia |
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| Abstract: | Control of invertebrate pests in broad-acre agriculture largely relies on the application of broad-spectrum pesticides, however resistance problems and environmental concerns are driving a search for alternatives including more selective products. Here we explore the feasibility of using novel chemical groupings in the control of problematic pests that attack germinating pastures and grain crops in Australia. A modified laboratory bioassay is described for testing the response of several invertebrate pests to pesticides that have contact and systemic/translaminar properties. Two contact pesticides (fenitrothion and gamma-cyhalothrin) and three pesticides with strong systemic/translaminar properties (lambda-cyhalothrin, abamectin and diafenthiuron) showed promise for control of the collembolan Sminthurus viridis and four mite pests (Halotydeus destructor, Balaustium medicagoense, Penthaleus falcatus and Bryobia sp.). No single pesticide emerged as the most efficacious against all these pests, highlighting the need for correct pest identification before making control recommendations. Incorporating these new chemical options into pest control programs may help to control emerging pests and counter pesticide resistance issues. Selective pesticides in particular are likely to be compatible with integrated control programs that promote the establishment and maintenance of beneficial natural enemies. |
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| Keywords: | Selective pesticides Pest control Establishment Bioassay IPM |
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