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Insecticides 20 MSU Extension Publication Archive Archive copy of publication, do not use for current recommendations. Up-to-date information about many topics can be obtained from your local Extension office. Pesticides for Use in Forest and Seed Tree Orchards Production in the North Central Region Michigan State University Extension Service Roseann Kachadoorian, and Jane Cummings-Carlson, Wisconsin Department of Natural Resources, Madison, Wisconsin; Deborah G. McCullough, Department of Entomology, and Department of Forestry, Michigan State University ; and Douglas O. Lantagne, Department of Forestry, Michigan State University December 1995 44 pages The PDF file was provided courtesy of the Michigan State University Library Scroll down to view the publication. Pesticides for Use in Forest and Seed Tree Orchards in the North Central Region Extension Bulletin E-2592 December 1995 Roseann Kachadoorian,1 jane Cummings-Carlson,1 Deborah G. McCullough,2 3 and Douglas O. Lantagne3 'Wisconsin Department of Natural Resources, Madison, Wisconsin • department of Entomology, Michigan State University department of Forestry, Michigan State University Produced by: Michigan State University Extension and the Wisconsin Department of Natural Resources with cooperation from: Illinois Department of Natural Resources University of Illinois College of Agricultural, Consumer and Environmental Sciences Indiana Department of Natural Resources Iowa Department of Natural Resources Michigan Department of Natural Resources Minnesota Department of Natural Resources Missouri Department of Conservation USDA Forest Service NA State and Private Forestry Pesticides for Use in Forest and Seed Tree Orchards in the North Central Region MICHIGAN STATE UNIVERSITY EXTENSION INDIANA DNR ILLINOIS ^^innesota DNR * NATURAL RESOURCES University of Illinois at ACES Urbana-Champalgn College of Agricultural, w Consumer &. Environmental Sciences DEPARTMENT OF NATURAL RESOURCES Forest and Seed Tree Pesticides Table of Contents Introduction ^1 Safe Pesticide Use 2 Major Disease Pests by Tree Species 8 Disease Diagnosis Chart 9 Major Insect Pests by Tree Species 12 Insect Pest Identification 13 State by State List of Registered Products Fungicides 19 Insecticides 20 Pesticide Tables for Forest & Seed Tree Orchard Fungicides 22 Insecticides 29 Funding to develop this bulletin was provided in part by a Focus Fund grant from the USDA Forest Service, NA State & Private Forestry, Forest Health Management. JBgfflffMS?ffi| MSU is an Affirmative-Action Equal Opportunity Institution. Extension programs and materials are open to all without regard to m race, color, national origin, sex, disability, age or religion. | Issued in furtherance of Extension work in agriculture and home II economics, acts of May 8 and June 20,1914, in cooperation with the U.S. Department of Agriculture. Gail L. Imig, director, •••••••fll Michigan State University Extension Service, E. Lansing, Ml 48824.| This information is for educational purposes only. Reference to commercial products or trade names does not imply endorsement by the Extension Service or bias against those not mentioned. This bulletin becomes public property upon publication and may be reprinted verbatim as a separate or within another publication with credit to MSU. Reprinting cannot be used to endorse or advertise a commercial product or company. Produced by Outreach Communications and printed on recycled paper using vegetable-based inks. New 12:95-2M-$2, for sale only INTRODUCTION Purpose of This Bulletin IPM - Integrated Pest Management This bulletin was developed to provide you with the latest available information on fungicide, Tree growers must deal with a great number of pests. insecticide or herbicide products available for pest The entire tree is vulnerable to attack including roots, management. Information included in the pesticide stems, foliage, shoots and terminal leaders. Damage tables was acquired from product labels. This can range from complete mortality, to growth loss, to information should help you select an appropriate cosmetic damage that reduces the value of trees at product for control of the target pest. market time. Integrated Pest Management (or IPM), is the best Stay Up-to-Date approach to manage pests in nursery, Christmas tree or forest and seed orchard production. IPM is defined Registration of pesticide products changes each as using all available tools or tactics to prevent year. Some products are removed from the market, economically important damage from pests, without new products are introduced, new uses are found for causing damage to the environment. old products, or new restrictions are placed on their Pesticides are an important part of an IPM use. Check with your County Extension agent for program, but should not be expected to cure all pest updates that have occurred since the publication of problems. Pesticide use is a corrective measure, this bulletin. designed to "control" a target pest. However, effective long-term pest management Always Read the Label must also include measures designed to prevent outbreaks of pests and to maintain tree health and Always read the label of the pesticide to be sure vigor. Pesticide use should be incorporated into a that it is registered and appropriate for the target pest. year-long management program that includes the use Note that some products require supplemental of cultural controls, biological controls, frequent and labels, which are available from your chemical regular pest scouting, accurate pest diagnosis, and supplier. evaluation of each pest management practice. Many commonly used products are included in the When using pesticides, growers should be list in this bulletin. However, other products may be conscious of factors such as timing, coverage and registered and available for use in your state. Read selection of the appropriate product. A good the label and consult your County Extension office, knowledge of the pest's life cycle, and selection of Department of Natural Resources or Department of appropriate products and application equipment will Agriculture if you have questions about the improve coverage and the effectiveness of the control. registration status of a pesticide product. The ability to recognize beneficial biocontrol insects, combined with cultural, sanitation or mechanical Selection of Products controls, may allow growers to delay or avoid treatment of a minor pest problem. Pesticides should be selected and applied to control Contact your County Extension office to learn specific pests. However, if there are two or more more about IPM and methods to integrate pesticide pests threatening the field or the trees, compare the use with other pest management tools. For example, recommendations for each pest and read the labels of many publications and specialists can help you learn the registered pesticides you are considering for use. how to use good cultural practices to prevent In some cases, a single application can be used to damaging pest populations from occurring. Another control both pests. example is the use of degree days to more accurately Occasionally, collective names are used when time insecticide application. Accurate timing can referring to similar species. For example, "aphid reduce the number of applications needed and increase pests" may include the giant pine aphid, powdery pine the effectiveness of the spray. These practices may needle aphid, spotted pine aphid, white pine aphid, also help conserve beneficial insect predators or and others. All of these aphid species can be managed parasitoids. Sound IPM practices will pay off in the using the same insecticide. long run, both economically and environmentally. SAFE USE OF PESTICIDES Pesticide Name Dry Formulations The trade name (first letter capitalized; Lorsban, for The amount of active ingredient(s) in a dry example) is used when a pesticide is sold under only formulation is given as a percentage in the one well-known brand name. The accepted common formulation. For example, 50% WP indicates a name of a pesticide is used when it is sold under wettable powder formulation containing 50 percent several brand names; chlorpyrifos, for example, has active ingredient. dozens of trade names (Lorsban is probably the most common). Some well-known brand names may be B—bait; pesticide mixed with some attractant given in parentheses following the common name; material that is applied without mixing with water. carbaryl (Sevin). D—dust; a finely ground pesticide intended for use Application Rates without mixing with water. The amount or rate of each formulation (the G—granule; a coarse particle intended for use commercial mixture of toxicant and inert ingredients) without mixing with water. used are given. Examine the label or contact your County Extension agent for more help in choosing WP—wettable powder; a finely ground pesticide appropriate rates for your situation. Use this intended to be mixed with water for application. information to help you select the safest pesticide for your application. SP—soluble powder; a finely ground pesticide to be dissolved in water for application. Abbreviations Liquid Formulations We have tried to be consistent in the abbreviations used in the control recommendations. The abbrevia­ The amount of active ingredient in a liquid tions used are as follows: formulation is given as pounds active ingredient per gallon. This is usually cited with the ingredients Dry Measure statements on the label. For example, 3.2 lb/gal EC oz = ounces indicates an emulsifiable
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