CaroVail · Ammonium Soaps of Higher Fatty Acids 13.8% · EPA Reg 5481-508
Document last checked 2026-05-30
According to the label From the product label
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EPA registration data for Reg. 5481-508 →
Hinder is a deer and rabbit repellent designed to protect plants by forming a mild odor barrier that is non-toxic to humans. The active ingredient is Ammonium Soaps of Higher Fatty Acids (13.8%). It is used to control browsing from white-tailed deer, black-tailed or mule deer, cottontail rabbits, and black-tail jack rabbits. This product is suitable for use on apples, pears, soybeans, peanuts, carrots, nursery stock, ornamental trees, shrubs, and flowers. It can be applied via hand-held sprayers, conventional spraying equipment, or aircraft (specifically for soybeans, peanuts, and carrots). For most applications, the product should be reapplied every 10-14 days to maintain effectiveness, and reapplied after heavy rains. Note that the product should not be applied when rain is expected within 24 hours. When using in cold weather, a temperature of at least 40°F for four hours is required for proper drying. Users should avoid spraying in windy conditions to prevent drift and should not use this product through irrigation systems. It is chemically incompatible with strongly ionized metallic salts such as zinc sulfate, manganese sulfate, and iron sulfates.
Pests covered (1)
Deer (white-tailed, black-tailed, mule) and Rabbits (cottontail, black-tail jack)
Areas treatable (1)
Apples, pears, soybeans, peanuts, carrots, nursery stock, ornamental trees, shrubs, and flowers
Application instructions from the label 1
Apples, pears, soybeans, peanuts, carrots, nursery stock, ornamental trees, shrubs, and flowers
Reapply every 10-14 days; reapply after heavy rains.
- Target pest
- Deer (white-tailed, black-tailed, mule) and Rabbits (cottontail, black-tail jack)
- Location
- Outdoor
Mixing instructions 4
| For pests |
Location |
Amount |
Per |
Finished strength |
Label notes |
| Deer |
Outdoor |
3-5 |
gallons |
per 100 gallons of water |
Yields 3.8-6.4 fl oz per gallon of dilution. |
| Soybeans and Peanuts |
Outdoor |
1-2 |
quarts |
per 10 gallons of water |
|
| Rabbits (Nursery Stock/Ornamentals) |
Outdoor |
mix |
equal parts |
|
Mix equal parts Hinder and water; apply to trunks. |
| Annual and Perennial Flowers |
Outdoor |
1-2 |
pints |
per 5 gallons of water |
|
Worker safety
Re-entry interval (REI)
12
PPE required
Applicators and other handlers must wear a long-sleeved shirt and long pants, waterproof gloves, shoes and socks, protective eyewear, and a NIOSH approved respirator with any N, R, P or HE filter.
Timing & weather
- Reapply every 10-14 days.
- Reapply after heavy rains.
- Requires 40°F for 4 hours for proper drying.
- Do not apply if rain is expected within 24 hours.
Use restrictions 6
- Do not apply in undiluted form.
- Do not apply with sprayers previously used for herbicides unless cleaned.
- Do not apply through irrigation systems.
- Do not apply when rain is expected within 24 hours.
- Do not apply in windy conditions.
- Do not apply during bloom period as it may cause phytotoxicity.
Active ingredient
Ammonium Soaps of Higher Fatty Acids 13.8%
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