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Funded Project |
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Funding Program:
Regional IPM Competitive Grants - Northeastern |
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Project Title:
Leveraging Biologicals into the Turfscape: Combining Controls and Exploiting Synergisms for White Grub Management |
Project Director (PD):
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Lead State: NY Lead Organization: Cornell University |
| Research Funding: $15,000 |
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Start Date: Jul-01-2005 End Date: Jun-30-2006 |
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Pests Involved: white grubs, beetles |
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Site/Commodity: turf, grasses, turfgrasses |
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Area of Emphasis: biocontrol, biological control |
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Summary:
White grubs are the most widespread and damaging pests in turfgrass habitats of the Northeast. In this extensive and rapidly expanding component of our urban and rural landscapes, management is highly dependent on chemical pesticides. Ten insecticides once offered a variety of control options, but only two preventive (counter to sound IPM) and one curative option (under FQPA review) still exist. Insecticide applications for grubs can be avoided 80% of the time by using sampling as a decision-making tool. Alternative biological control options are limited and largely non-efficacious. Advancing biologically-based pest management in this system may depend on the tactical combination of biological and chemical controls. This opportunity is based on recent investigations showing increased efficacy of biocontrols when insects are challenged by other stressors, such as reduced rates of preventive insecticides. The driving need is based on providing new curative options to replace preventive applications and thereby improve IPM. To seriously evaluate this approach, we will test a range of biologicals - singly and in combination with insecticide synergists - to control white grubs. These detailed laboratory studies will identify the most promising products and synergistic combinations for continued studies, and measure how efficacy varies across different white grub species. In this "critical step" research, we anticipate finding one or more truly synergistic combinations that will open the door for biologically-based curative control options. Documenting this new approach will help guide the development of biologically-based pest management options for soil insect pests in other turfgrass and horticultural systems.
Objectives: Project Purpose The purpose of this project is to reduce the economic and environmental costs of insecticide dependence in turfgrass systems by evaluating and promoting new approaches to pest management. Overall Objective The main objective of this project is to evaluate and promote biologically-based management options for white grubs in turfgrass, with an emphasis on the synergistic interaction between combined biological and chemical control products. Specific Objectives * Screen the efficacy of 15 different registered and experimental bioproducts and curative chemical insecticides to larvae of European chafer in controlled laboratory bioassays. * Quantify and compare the efficacy of the same products to four white grub species: European chafer, Japanese beetle, Oriental beetle and Asiatic garden beetle. * Evaluate and compare the efficacy of different combinations of select bioproducts with three rates of curative chemical insecticides to larvae of European chafer in controlled laboratory bioassays. * Quantify and compare the efficacy of select chemical/biological combinations to four white grub species: European chafer, Japanese beetle, Oriental beetle and Asiatic garden beetle. * Identify the most promising combinations for future greenhouse and field trials by characterizing the interactions as synergistic, additive or antagonistic, and ranking their efficacy and compatibility. Proposal USDA CRIS data Final Report |
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