Drexel Pin Dee 3.3 EC Herbicide

4.5 out of 5 stars 3 Reviews | 6 Q&A

Drexel Pin Dee 3.3 EC Herbicide

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Average Rating

4.5 out of 5 stars Rating: 4.3

3 Reviews | 6 Q&A

Product Overview

Drexel Pin Dee 3.3 EC Herbicide is a highly effective herbicide that is specially formulated to prevent small-seeded unwanted broadleaf weeds and grasses from emerging. Contains pendimethalin as its active ingredient which is known for controlling annual grasses and weeds. It provides preventive control in a wide range of permanent crops, field crops, and noncropland areas. The Drexel Pin Dee 3.3 EC Herbicide comes in a liquid formula that is easier and more convenient to apply. It features an excellent mode-of-action that is perfect even for herbicide-resistant weeds. Proven powerful in controlling weeds such as crabgrass, foxtail, canarygrass, wild oat, carpetweed, henbit, kochia, and amaranth. Packaged in a 2.5-gallon jug container.

Features and Specs

Active Ingredient Pendimethalin - 37.4%
Target pests Broadleaves and grasses.
For use in Alfalfa, Bearing Citrus Fruit Trees, Bearing Nut Trees, Carrots, Carrots Grown For Seed, Corn, Cotton, Edible Beans, Forage Legumes, Fruiting, Vegetables, Turfgrasses, Industrial Turf, Ornamentals, Landscapes and Ground Maintenance, Noncropland.
Application Provides most effective weed control when applied by ground or aerial equipment and subsequently incorporated into the soil within 7 days after application by rainfall, sprinkler irrigation or mechanical tillage prior to weed seedling emergence from soil.
Pet safe Yes, if used as directed on the label.
Formulation Liquid Formula.
VT (Restricted To Licensed Applicators Only)
Dimensions 9.25 x 7.00 x 14.50 inches.
Special Features Effective Mode-of-Action for controlling many herbicide-resistant weeds.
Shipping Weight 24.12 lbs
Manufacturer Drexel Chemical Co. (Mfg. Number: 10010102)
UPC 752423158911
EPA Registration 19713-668



This product is toxic to fish. Do not apply directly to water or to areas where surface water is present or to intertidal areas below the mean high water mark. Drift and runoff from treated areas may be hazardous to aquatic organisms in adjacent aquatic sites. Do not contaminate water when disposing of equipment washwaters or rinsate.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do not apply this product in a way that will contact workers or other persons either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your state or tribe, consult the agency responsible for pesticide protection.

This label must be in the possession of the user at the time of pesticide application. Observe all precautions and restrictions in this label and the labels of products used in combination with this product. The use of this product not consistent with this label can result in injury to crops, animals or persons.

Do not allow spray to drift from the application site and contact people, structures people occupy at any time and the associated property, parks and recreation areas, non-target crops, aquatic and wetland areas, woodlands, pastures, rangelands or animals.

Do not enter or allow other people (or pets) to enter the treated area until sprays have dried.


Weeds Controlled By Up to 2.4 Qts. of This Product Per Acre

  • Grasses
    • Annual ryegrass
    • Barnyardgrass
    • Canarygrass
    • Cheat
    • Crabgrass
    • Crowfootgrass
    • Downy brome (Cheatgrass)
    • Foxtail (Giant)
    • Foxtail (Green)
    • Foxtail (Yellow)
    • Goosegrass
    • Hairy chess
    • Itchgrass
    • Italian ryegrass
    • Japanese brome
    • Johnsongrass (Seedling)
    • Jointed goatgrass
    • Oat (Wild)
    • Panicum (Fall)
    • Panicum (Texas)
    • Sandbur (Field)
    • Shattercane
    • Signalgrass
    • Wild proso millet
    • Witchgrass
    • Woolly cupgrass
  • Broadleaves
    • Amaranth (Palmer)
    • Bugloss (Small)
    • Carpetweed
    • Chickweed (Common)
    • Henbit
    • Kochia
    • Lady’s thumb
    • Lambsquarters (Common)
    • Lambsquarters (Slimleaf)
    • London rocket
    • Mustard (Black)
    • Pigweed spp.
    • Purslane
    • Pusley (Florida)
    • Shepherdspurse
    • Smartweed (Pennsylvania)
    • Spurge (Annual)
    • Velvetleaf
    • Waterhemp spp


Use rates for this product when used alone, in tank-mix or sequential applications are given in the “CROPS” section. It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and follow the applicable restrictions and limitations and directions for use on all product labels involved in tankmixing. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank-mixture. Use rates of this product vary by soil texture and organic matter.

*See label for the complete list of application rates.

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  • 5 of 5 Stars


    By Frank on 12/04/2020

    As advertised, works well and dose a great job I highly advise the use of this product for all weed control

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    10 of 10 people found this review helpful

  • 4 of 5 Stars

    Excellent pre-emergent

    By Caston on 03/28/2021

    Used the pre-emergent, worked very well with good coverage. Just like Pendulum that is much more expensive. Would buy again when needed.

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    8 of 8 people found this review helpful

  • 4 of 5 Stars

    fast delivery

    By Tim on 11/06/2020

    haven't used the chemical yet due to change in the weather but it was delivered fast.

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    2 of 8 people found this review helpful

See all 3 customer reviews

Questions & Answers

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Will Drexel Pin Dee 3.3 EC Herbicide stop poa annua seed from germinating? Thanks

Or how about Pin Dee 3.3 T&O


The Drexel Pin Dee 3.3 EC Herbicide is labeled to prevent poa annua seed from germinating if used prior to see germination cycles in the fall and spring and at labeled rates. Pin Dee 3.3 T&O contained the same active ingredient and would be comparable

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5 of 5 people found this answer helpful

Can Pin Dee herbicide be used in tall fescue residential turf?

Yes, Drexel Pin Dee 3.3 EC Herbicide is labeled to be used on a fescue turf without damaging it. 

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3 of 3 people found this answer helpful

Is Drexel Pin Dee 3.3 EC Herbicide safe for use in watermelons? If so what’s the application rate?

Drexel Pin Dee 3.3 Herbicide is not labeled for use on watermelons.  You may consider an alternative, such as Monterey Vegetable & Ornamental Weeder, which is labeled for use on watermelons, and is a pre-emergent herbicide that helps to control grasses and broadleaf weeds.  The application rate is 3 oz. of product per 2 gal. of water per 1,000 sq. ft., spraying the solution directly onto the soil.

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3 of 3 people found this answer helpful

Can Drexel Pin Dee 3.3 EC Herbicide be used on lawns?

Just wondering if there’s any difference at all between Pin Dee “EC” VS Pin Dee “T&O” that I’m not aware of?


Pin Dee 3.3 EC does list residential lawns on the label when used as directed though it is usually used around listed edible crops, while the Pin Dee 3.3 T&O was made for more turf and ornamental and non bearing fruit trees.  The inert ingredients can vary between the 2 products, they just have the same active ingredient.

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3 of 3 people found this answer helpful

How many ounces of Drexel Pin Dee 3.3 EC Herbicide per gallon of water in 25 gallon tank sprayer?

Using it for sand spurs in black gumbo dirt in TX on 3 + acres.


Drexel Pin Dee 3.3 EC Herbicide is applied at 2-4 qts (with sufficient water at the time of application) per acre prior to germination at appropriate timing. Please see the label for complete instructions. 

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3 of 5 people found this answer helpful

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Drexel Pin Dee 3.3 EC Herbicide 4.5 out of 5 stars Rating: 4.3 (3 Reviews / 6 Q&A)

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