Northeast IPM 1997 Grants Program:
Funded Projects

Project Title:

Integrating Disease and Mite Management in Apples and Grapes

States:New York
Investigators:English-Loeb, G. M.
J. P. Nyrop
W. F. Wilcox
W. H. Reissig
A. M. Agnello
Project Type:Research
Award*:$86,885
Term:24 months
Crop:apples
grapes

*Award shown is total amount to be used over the course of the project term.

Objectives

1. Examine the relationship between rate and timing of EBDC fungicides on establishment and persistence of predaceous mites in grapes and apples.

These experiments will allow us to quantify the impact of EBDC fungicides on T. pyri and determine the relative contribution of timing and rate. Although data from Europe indicate that EBDC fungicides sometimes negatively influence predaceous mite populations, we currently have no information of whether they are particularly vulnerable to early vs. late applications on can tolerate low rates but not high. These details are essential for developing disease management recommendations that are compatible with biological control of mites.

2. Determine how current commercial EBDC use patterns in grapes and apples affect abundance of predaceous mites over multiple years.

Results from objective 1 will provide us with a good understanding of the impact of EBDC fungicides on the establishment of T. pyri over the short run (acute or within-season effects) relative to alternative materials. It is likely, however, that repeated use of these compounds over multiple years will have important additional implications for predator/prey relationships and persistence of predaceous mites. To obtain meaningful results, these longer-term experiments must be carried out in relatively large plots for several consecutive seasons.

3. Conduct an economic analysis to compare the costs and benefits of using integrated disease and insect management programs to facilitate biological control of spider mites on apples and grapes with grower's standard pesticide programs.

This analysis will be conducted in the large plots established over multiple seasons in commercial orchards and vineyards. Yields, product quality, costs (including pesticides and application costs), and an estimate of environmental impacts (E.I.Q), will be compared in the different programs with those in grower's standard plots in the same commercial plantings.

Links

1997 Northeast IPM Funded Projects directory page

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About this Page

1997 NE IPM Funded Grant 97-NE09

loaded March 28, 1997

This page is sponsored by the Cooperative Extension and Land Grant University IPM programs of the Northeast (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and West Virginia) and by the United States Department of Agriculture.

Developed and managed by James R. VanKirk, Facilitator for Northeast IPM Activities.

Technical management: Cheryl TenEyck, NY IPM Program
Design assistance: Karen English-Loeb, NY IPM Program