Corry's Slug & Snail Killer Ready-to-Use Pellets Review (2026)
By Nate Sawyer, Editor · Updated July 2026
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- Slugs
- Snails
- Edible gardens
- Rain resistance
A ready-to-use iron-based bait (sodium ferric EDTA) that pairs low toxicity with excellent coverage — about a pound treats up to 5,000 sq ft, and it's labeled for use around edibles right up to harvest. Rain-resistant pellets protect for up to two weeks. As with any iron bait slugs die over several days, and it's still a pesticide, so scatter thinly, keep it from pets and piles, and follow the label.
Pros
- Sodium ferric EDTA is a low-toxicity iron-based bait, much safer around pets and wildlife than metaldehyde
- Goes far — about 1 lb covers up to 5,000 sq ft — and can be used right up to harvest per the label
- Rain-resistant pellets keep protecting plants for up to two weeks between applications
Cons
- Like all iron baits, slugs die over 3-6 days rather than on contact
- Still a pesticide: keep pellets out of piles, away from pets, and use strictly per the label
- Pellets can be hard to see once scattered, making even coverage tricky
Specifications
| Active ingredient | Sodium ferric EDTA (5%) |
|---|---|
| Coverage | About 1 lb treats up to 5,000 sq ft |
| Rain resistance | Rainproof; up to ~2 weeks of protection |
| Use on edibles | Labeled for use around plants up to the day of harvest |
| Form | Light-brown pellets |
Frequently Asked Questions
- How quickly does iron-based slug bait work?
- Slugs stop feeding fairly quickly but die over 3-6 days rather than on contact. If you are expecting to find dead slugs the next morning, this chemistry will look like it failed when it has not.
- Is sodium ferric EDTA safer than metaldehyde?
- It is a much lower-toxicity iron-based bait and considerably safer around pets and wildlife. It is still a pesticide — keep the pellets scattered rather than in piles, away from pets, and follow the label.
- How far does a pound of pellets go?
- Up to about 5,000 sq ft, and it is rainproof for roughly two weeks of protection. The practical difficulty is even coverage: the light-brown pellets disappear against soil once scattered.