Bonide Captain Jack’s Neem Oil, 16 oz Ready-to-Use Spray, Multi-Purpose Fungicide, Insecticide and Miticide for Organic Gardening

8 reviews for Bonide Captain Jack’s Neem Oil, 16 oz Ready-to-Use Spray, Multi-Purpose Fungicide, Insecticide and Miticide for Organic Gardening

1. 

   Rated 3 out of 5

   Jenny – 03/07/2025

   I’ve been familiar with neem for most of my life, over 30 years, and it’s always been one of the best natural ingredients for getting rid of insects and bugs. Here in the US, I’ve never come across an actual neem plant, so when I saw this product and its ratings, I was hoping it would be close to the real thing.

   I have a small garden where some plants had larvae and others had whiteflies. After using this neem oil, the plant with larvae improved noticeably—they’re now clean and growing well. However, the plant with whiteflies showed no improvement at all. In fact, the fly count seemed to increase, which makes me feel this oil isn’t as effective as claimed.

   Another big downside is the bottle design. It’s awkward to hold with one hand, and the spray nozzle is so small and the bottle neck has zero friction, so its hard to grip it, hence makes it difficult to hold the bottle in one hand and spray. Honestly, zero stars for that design.

   Overall, I’m not particularly impressed with either the oil’s effectiveness or the packaging. At this point, I’m on the fence about recommending it to anyone.

2. 

   Rated 5 out of 5

   Ed Guy – 05/07/2025

   This is a great product I’ve successfully controlled gnats with this product. I had a bottle that I used up and ordered a new bottle and the new bottle is spoiled. Neem oil can go bad, it will have a strong odor and curdle which will clog the spray bottle, the smell is the worst when it goes bad. Pics show it next to my old empty bottle which has a lighter color and has a faint oil smell.

3. 

   Rated 5 out of 5

   KSmith – 17/08/2025

   I use this on my apple tree and it repel the bugs who like to get into the apples. I like that it’s natural.

4. 

   Rated 4 out of 5

   Kailyn – 20/08/2025

   This stuff smells so bad. Better open window if you have indoor plant problems and need this. I have been using it for months and have seen little help with my insect issues. Makes a mess. Good thing its natural ingredients. It sprays really nice and had the spray and stream option.

5. 

   Rated 5 out of 5

   Ed Guy – 23/08/2025

   This stuff works great.

   I have a lot of indoor plants, and those annoying little black bugs come swarming to kill them. Started using this stuff and it will get rid of them within a week.

   My tip is to spray the plants soil, then water it so that the spray penetrates the soil deeply.

   It’s smells like crap. But that’s kind of the point. To give a good example on the longevity of the product I got the big bottle, and I have 12 indoor plants and it should last you at least 6 months.

6. 

   Rated 5 out of 5

   Nicole – 29/08/2025

   I’ve used it on succulents, plumerias, houseplants and exterior plants such as potatoes, strawberries and corn. Been affective for mealy bugs, I forget the species however one succulent had an infestation (this took probably a couple weeks of treatment) and even caterpillars! I did save the most impressive for last, one of my Desert Rose (extremely difficult species) came with a caudex whose whole bottom half was mushy with a fungal infection so my first thought was I had to cut it in half, dry it out and hope for the best however as is usually best with this plant I had to exercise restraint and think of a different plan. Then I thought of trying this stuff and it’s actually working! Awesome product, it does take time and sometimes lots of applications so it’s not an immediate result and isn’t designed to be. Also it smells realllly bad. Will always have this on hand

7. 

   Rated 5 out of 5

   Kailyn – 09/09/2025

   ⭐️⭐️⭐️⭐️⭐️

   My vegetable garden was starting to feel like a pest buffet—aphids on the kale, spider mites on the beans, and a suspicious fuzzy mildew creeping onto my cucumbers. I was about ready to wave the white flag when I tried Bonide Captain Jack’s Neem Oil.

   First, the convenience: the ready-to-use spray bottle means no mixing, no fuss. I just shook it up, aimed, and sprayed like a garden superhero. Within a few days, pests were noticeably reduced, leaves looked healthier, and that powdery mildew? Gone before it could spread.

   It’s organic gardening approved, so I can spray my tomatoes and basil without worrying about chemicals making their way into dinner. The scent is earthy and strong—classic neem—but I’ll take that over toxic fumes any day.

   This is more than just an insect killer. It’s a fungicide, miticide, and all-around plant protector in one bottle. If your plants could hire security, they’d hire Captain Jack. 🌿💪

   Verdict: A must-have for anyone serious about healthy, pest-free plants.

8. 

   Rated 5 out of 5

   MS – 23/09/2025

   My plants became a comfy home for some fungal flies when my kids wanted to help with watering without my knowledge (very sweet and thoughtful but my poor plants LOL) instead of putting stress on their roots by repotting with new dirt, I purchased this neem spray in hopes it would help clear out the pests. All of my plants look so healthy and beautiful afterwards! I sprayed this on all my indoor and outdoor potted plants, and within just a couple days they all perked up, they even look more vibrant, and I haven’t seen a single fungal fly since!