PAN Pesticides Database - Pesticide Products

Product Name: Diazinon 50 wp

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Identifying information, including U.S. EPA registration number, product registration status, formulation and warning label, as well as links to sources of product labels and MSDS information.
Summary of the toxicity properties of each active ingredient and the percent of each active ingredient in the product.
Approved uses for the product by general use type, pest, and crop or location.
Product registration history, including initial date registered, date cancelled (if applicable), and date registration was transferred (if applicable).
Name, address, and identifying number of the company that registered the product. Name and address of the agent, if applicable.
Complete list of names under which this product is sold. Often a company will register a single product and then sell the same product under many different brand names. The 'Distributor Name' list is a complete list of these names.

Product Identification for Diazinon 50 wp

Basic Identification Information About This Product
MSDS and Product Label
U.S. EPA Product Reg No
Product Registration Status
Acute Hazard Warning Label
Restricted Use Product
PAN Bad Actor Product:
No. of names this product is sold under
Wettable powder
3 Caution
Not Listed
1 (See bottom of page for complete list of products)

Toxicity for Diazinon 50 wp

Summary Toxicity Information for the Active Ingredients in this Product
For detailed chemical information click on the chemical names below

Active Ingredients
Chemical Name
Percent Carcinogen Cholinesterase
Developmental or
Reproductive Toxin
Diazinon 50.0 %
Indicates high toxicity in the given toxicological category. Indicates no available weight-of-the-evidence assessment. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page for each active ingredient.

Other Ingredients in this Product

By U.S. law, only active ingredients (AIs) are reported. In addition to active ingredients, pesticide products may contain one or more "inert" ingredients. Many "inert" ingredients in current use have known adverse human and environmental effects.

U.S. EPA statement on inerts      U.S. EPA list of inerts     NCAP Inerts Report (pdf)


Historic Uses in the U.S. for Diazinon 50 wp

Note! This product is now cancelled, when it was registered it was used for the following:


Insecticide , Miticide


No pest , Mites , Carnation bud mite , Pearleaf blister mite (eggs) , Dryberry mite , Cherry rust mites , Carnation shoot mite , Cyclamen mite , Privet mite , Spider mites , Clover mite , Brown mite , European red mite , European red mite (eggs) , Pacific spider mite , Twospotted spider mite , Thrips , Onion thrips , Raspberry fruitworms , Seedcorn beetle , Flea beetles , Striped cucumber beetle , Banded cucumber beetle , Obscure root weevil , Wireworms , Sap beetles , Dipterous leafminers , Root maggots , Onion maggot , Seedcorn maggot , Cranberry tipworm , Drosophila , Vinegar fly , Mushroom flies , Phorid flies , Sciarid flies , Cherry fruit fly , Blueberry maggot , Apple maggot , Harlequin cabbage bug , Scales (crawlers) , Whiteflies , Aphids , Green apple aphid , Apple aphid (eggs) , Leafcurl plum aphid , Thistle aphid , Rosy apple aphid , Woolly apple aphid , Mealy plum aphid , Mealy plum aphid (eggs) , Black cherry aphid , Black cherry aphid (eggs) , Corn leaf aphid , Leafhoppers , Beet leafhopper , Soft scales (crawlers) , Brown soft scale , Lecanium scales (crawlers) , Brown apricot scale , Black scale , Parlatoria scale , Olive scale (crawlers) , Pine needle scale (crawlers) , White peach scale , Forbes scale (crawlers) , San jose scale , San jose scale (crawlers) , Cottonycushion scale (crawlers) , Mealybugs , Pineapple mealybug , Apricot mealybug , Pear psylla , Hemlock chermes , European pine sawfly , Fire ant , Pearslug , Fall webworm , Almond twig borer , Peach twig borer , Juniper webworm , Cotoneaster webworm , Western oak looper , Apple-and-thorn skeletonizer , Tent caterpillars , Cutworms , Corn earworm , Southern armyworm , Beet armyworm , Fall armyworm , Surface feeding cutworms , Subterranean cutworms , Walnut caterpillar , Imported cabbageworm , Bagworm , Cranberry fruitworm , Grape leaffolder , Melonworm , Fruittree leafroller , Obliquebanded leafroller , Omnivorous leaftier , Omnivorous leafroller , Strawberry leafroller , Oriental fruit moth , Cherry fruitworm , Codling moth , Grape berry moth , Blackheaded fireworm , Holly bud moth , European pine shoot moth , Eyespotted bud moth , Diamondback moth , Mimosa webworm , Grasshoppers , Mole crickets

Crops and Locations

Blackberries (foliar treatment) , Blackberries (dormant application) , Blackberries (delayed dormant application) , Boysenberries (foliar treatment) , Boysenberries (dormant application) , Boysenberries (delayed dormant application) , Dewberries (foliar treatment) , Dewberries (delayed dormant application) , Dewberries (dormant application) , Loganberries (foliar treatment) , Loganberries (dormant application) , Loganberries (delayed dormant application) , Raspberries (foliar treatment) , Raspberries (dormant application) , Raspberries (delayed dormant application) , Blueberries (foliar treatment) , Cranberries (foliar treatment) , Cranberries (water treatment) , Grapes (foliar treatment) , Strawberries (foliar treatment) , Almonds (dormant application) , Walnuts (foliar treatment) , Apples (foliar treatment) , Apples (dormant) , Apples (delayed dormant application) , Pears (foliar treatment) , Pears (delayed dormant application) , Pears (dormant application) , Apricots (foliar treatment) , Apricots (dormant application) , Cherries (foliar treatment) , Cherries (dormant application) , Cherries (delayed dormant application) , Cherries (postharvest application) , Nectarines (foliar treatment) , Nectarines (dormant application) , Peaches (foliar treatment) , Peaches (dormant) , Peaches (trees) (postharvest application) , Plums (foliar treatment) , Plums (dormant application) , Prunes (foliar treatment) , Prunes (dormant application) , Pineapple (foliar treatment) , Hops (foliar treatment) , Cantaloupes (foliar treatment) , Cantaloupes (soil treatment) , Casaba melons (foliar treatment) , Casaba melons (soil treatment) , Crenshaw melons (foliar treatment) , Crenshaw melons (soil treatment) , Honeydew melons (foliar treatment) , Honeydew melons (soil treatment) , Muskmelons (foliar treatment) , Muskmelons (soil treatment) , Persian melons (foliar treatment) , Persian melons (soil treatment) , Watermelon (foliar treatment) , Watermelon (soil treatment) , Tomatoes (foliar treatment) , Tomatoes (soil treatment) , Broccoli (foliar treatment) , Broccoli (soil treatment) , Brussels sprouts (foliar treatment) , Brussels sprouts (soil treatment) , Chinese cabbage (napa) (foliar treatment) , Chinese cabbage (bok choy) (foliar treatment) , Kale (foliar treatment) , Kale (soil treatment) , Endive (escarole) (foliar treatment) , Endive (escarole) (soil treatment) , Spinach (foliar treatment) , Turnips (greens) (foliar treatment) , Turnips (greens) (soil treatment) , Lettuce (head) (foliar treatment) , Lettuce (head) (soil treatment) , Lettuce (leaf) (foliar treatment) , Lettuce (leaf) (soil treatment) , Chinese broccoli (foliar treatment) , Chinese mustard (gai choy) (foliar treatment) , Onions (bulb) (foliar treatment) , Onions (bulb) (soil treatment) , Radishes (foliar treatment) , Radishes (soil treatment) , Rutabagas (foliar treatment) , Rutabagas (soil treatment) , Beans (succulent) (seed treatment) , Corn (sweet) (foliar treatment) , Corn (sweet) (soil treatment) , Peas (succulent) (seed treatment) , Onions (green) (foliar treatment) , Onions (green) (soil treatment) , Sugar beets (forage) (foliar treatment) , Beets (red) (foliar treatment) , Beets (table) (foliar treatment) , Beets (red) (soil treatment) , Beets (table) (soil treatment) , Corn (seed treatment) , Mustard (foliar treatment) , Turnips (foliar treatment) , Turnips (soil treatment) , Carnation (nursery) , Chrysanthemum (nursery) , Wax plant (nursery) , Hoya (nursery) , Lilies (nursery) , Marigold (nursery) , Pansies (nursery) , Petunia (nursery) , Azalea (nursery stock) , Boxwood (nursery) , Camellia (nursery) , Euonymus (nursery) , Hawthorn (nursery) , Holly (nursery) , Honeysuckle (nursery) , Lilac (nursery) , Rhododendron (nursery) , Roses (nursery) , Spirea (nursery) , Arborvitae (nursery stock) , Birch (nursery) , Dogwood (nursery) , Douglas-fir (nursery) , Elm (nursery stock) , Crabapple (ornamental) (nursery) , Plum (ornamental) (nursery stock) , Honeylocust (nursery) , Juniper (nursery) , Locust (nursery) , Maple (nursery) , Oak (nursery) , Pine (nursery) , Poplar (nursery) , Scotch pine (nursery) , Spruce (nursery) , Sycamore (nursery) , Willow (nursery) , Yew (nursery) , Yellowwood (nursery) , Mushroom houses (enclosed premise treatment) , Ant dens/hills/mounds (all or unspecified) , Aerial application

U.S. Product Registration History for Diazinon 50 wp

U.S. EPA Product Reg No:
Product Registration Status:
Approval Date:
Oct 7, 1983  
Cancellation Date:
Jul 21, 2005  
Cancel/Transfer Reason:
Maint. fee non-payment - registrant req.

Company and Agent Information for Diazinon 50 wp

Manufacturer Agent Distributor
Helena agri-enterprises, llc, d/b/a helena chemical company
225 schilling blvd., suite 300
Collierville, TN 38017
Company Number: 005905
No Agent, See Company Info. No Additional Distributor, See Company Info.

Distributor Names for Diazinon 50 wp

Product names Distributor Product Type Approval Date Cancellation Date
Diazinon 50 wp Helena agri-enterprises, llc, d/b/a helena chemical company Parent Product Oct 7, 1983 Jul 21, 2005
Working with the Information on this Page

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