Dithane

CaroVail · Mancozeb · EPA Reg 62719-387 · Fungicide Document last checked 2026-05-30

According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 62719-387 →

Dithane M45 is a fungicide used to control various fungal diseases in a wide range of crops, including field crops, fruits, vegetables, and miscellaneous crops. The active ingredient is mancozeb (40%), which acts as a protectant. It is used both as a foliar spray and as a seed treatment. For foliar applications, it can be applied via sprayer, including aerial application, though specific rates and equipment requirements apply. For seed treatment, it is used to control diseases like smut or damping-off. When handling, users must wear personal protective equipment (PPE) including long-sleeved shirts, long pants, shoes and socks, and chemical-resistant gloves. If using a dust mask, a NIOSH-approved respirator with a dust filter is required. Users should avoid contact with eyes, skin, or clothing. Always follow specific application rates for each crop to avoid exceeding maximum allowed active ingredient levels per acre. Always read the full label for specific timing and weather restrictions.

Pests covered (8)

blossom blight (Monilia spp.)shothole (Spilocarpum spp.)common corn rustheminthosporium leaf blightcercospora leaf spot rustalternaria leaf spotcommon rustanthracnose

Areas treatable (9)

AlmondBarleyBarley (hybrid corn)PeanutAsparagusBroccoli/CabbageCornPapayaCherimoya

How to treat each type of area 10

Almond

Target pest	Location	Rate	Unit
blossom blight (Monilia spp.)	Outdoor	6	lb/acre
shothole (Spilocarpum spp.)	Outdoor	6	lb/acre

Barley

Target pest	Location	Rate	Unit
common corn rust	Outdoor	1.5	lb/acre

Barley (hybrid corn)

Target pest	Location	Rate	Unit
heminthosporium leaf blight	Outdoor	1.5	lb/acre

Peanut

Target pest	Location	Rate	Unit
cercospora leaf spot rust	Outdoor	1-2	lb/acre

Asparagus

Target pest	Location	Rate	Unit
cercospora leaf spot rust	Outdoor	2	lb/acre

Broccoli/Cabbage

Target pest	Location	Rate	Unit
alternaria leaf spot	Outdoor	2	lb/acre

Corn

Target pest	Location	Rate	Unit
common rust	Outdoor	1.5	lb/acre

Papaya

Target pest	Location	Rate	Unit
anthracnose	Outdoor	2-2.5	lb/acre

Cherimoya

Target pest	Location	Rate	Unit
anthracnose	Outdoor	2-2.3	lb/acre

Mixing instructions 3

For pests	Location	Amount	Per	Label notes
Seed Treatment	Outdoor	1.3-2	oz/bushel	For barley covered smut
Seed Treatment	Outdoor	1.5-3	oz/bushel	For corn (field) damping-off
Seed Treatment	Outdoor	2-4	oz/bushel	For flax damping-off

Worker safety

Re-entry interval (REI) 7 days (for Almond)

PPE required Long-sleeved shirt, long pants, shoes and socks, chemical-resistant gloves. If using a dust mask, use a NIOSH-approved respirator with a dust filter (MSHA/NIOSH approved prefix TC-21 or any N, R, P or HE filter).

Timing & weather

Apply at flowering and continue at 7-14 day re-treatment intervals for some fruits.
Avoid application if heavy rains are expected.

Use restrictions 3

Do not exceed maximum allowed active ingredient per acre per season.
Do not graze livestock in treated areas for certain crops.
Do not apply within certain days of harvest (Preharvest Interval).

Label SDS

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.