General Information


This product is intended for use by the commercial grower or commercial applicator in conventional hydraulic sprayers, concentrate application equipment, ground applicators or airplane sprayers. This product is prohibited from use in or around any structure used as a residence or domestic dwelling, or on any articles or areas associated with such structures (including household contents, home gardens, and home greenhouses); and, from any use in or around public or private buildings or structures (including recreational facilities, theaters, hotels, or other buildings used for public accommodation, or in any other commercial, industrial, or institutional building), or on any articles associated with such structures, including refuse areas, building contents and landscaping (but not including outdoor commercial ornamental tree and shrub production areas). When applying by ground equipment, use the recommended amount in sufficient water for thorough coverage: by aircraft, in 1 to 10 gallons of water unless otherwise specified. The rates of DIMETHOATE 4 EC are recommended on a per 100 gallons of dilute spray, except where indicated. Application rates applied

by concentrate methods should equal the total amount of dimethoate applied per acre on the per 100 gallon basis except where the actual concentrate rates are specified.

(If a dilute application is recommended at 1 pint per 100 gallons and it requires 400 gallons per acre for proper coverage, the concentrate rate would equal 4 pints per acre). The optimum spray gallonage is dependent on tree size, density and growth stage. Typical spray gallonages per acre range from, but are not limited to 100-600 gallons for dilute spray, 20-100 gallons for concentrate and 1-25 gallons for aerial. Do not apply when weather conditions favor drift of spray from areas treated. Repeat applications as necessary unless otherwise specified.

Consult your state experiment station or state extension service for proper timing of applications.

DIMETHOATE 4 EC is compatible in spray tank-mixes with most insecticides, miticides, and fungicides, provided they are not alkaline in reaction. DIMETHOATE 4 EC has systemic and contact activity against a broad spectrum of piercing, sucking and chewing insects. For proper mixing, spray tank should be at least 3/4 filled with water before adding DIMETHOATE 4 EC. Mechanical agitation or recirculation through pump bypass to tank is usually sufficient for maintaining a good dispersion. Spray tank-mixtures of DIMETHOATE 4 EC with fertilizers that are alkaline should be applied immediately.

All spray mixes should be made in accordance with the product that has the more restrictive label limitations and precautions.

Dimethoate may produce a distinctive odor during the spray operation, but under normal conditions this odor does not persist.

Limitations, Restrictions, and Exceptions


Soil injections: 3.5 mls. of product per inch of tree circumference measured at approximately 4.5 to 5 feet above ground level. Application should be made once per growing season (twice per season for elm leaf beetles; once shortly after trees leaf out and once 6 to 8 weeks later.) Some species such as River Birch, Prunus, Ornamental Cherry, Hawthorne, Japanese Lace Maple and Aspens may show phytotoxic effects at label rates. DO NOT USE ON BEARING FRUIT TREES. Use a Kioritz Injector with a 6- inch probetip or similar type equipment capable of delivering metered dosage. A common household funnel should be used to fill the injector, and chemical-resistant gloves (see Personal Protective Equipment section of the label) must be worn. Product should be inserted to a 4 to 6 inch level below ground surface. Injections should be distributed equally radially in the area around the tree trunk to drip line. Number of insertions should equal inches of tree circumference. Do not inject concentrate directly into live root tissue. Water heavily after injection. At least 2 inches of water is recommended.

Restricted Entry Interval

48 hours