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🌱 Defend your garden naturally—because your plants deserve the best!
Summit Caterpillar and Webworm Control is a 1-quart concentrated, all-natural liquid solution using Bacillus thuringiensis kurstaki (BTK) to selectively eliminate leaf-eating caterpillars. OMRI® certified and safe for organic gardening, it protects your trees, fruits, and vegetables without harming beneficial insects or the environment. Made in the USA, this easy-to-mix formula delivers targeted, effective pest control within days, empowering millennial gardeners to maintain lush, healthy outdoor spaces with confidence.
| ASIN | B00B7WO1RS |
| Best Sellers Rank | #1,922 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #14 in Insect & Pest Repellent Spray Concentrates |
| Brand | Summit |
| Brand Name | Summit |
| Customer Reviews | 4.5 out of 5 stars 627 Reviews |
| Global Trade Identification Number | 00018506000202 |
| Included Components | item |
| Item Form | Liquid |
| Item Type Name | Summit Caterpillar and Webworm Control-Hose End, 1 Qt Concentrate |
| Item Weight | 2.2 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Summit...reponsible solutions. |
| Model Number | 020-6 |
| Part Number | 020-6 |
| Target Species | Insects |
| UPC | 018506000202 |
| Unit Count | 1 Count |
C**Z
Helping to eradicate my boxwood caterpillars.
I was looking for something that wasn't an insecticide that would randomly harm everything. So far this has worked well with my boxwood caterpillar infestation. I applied it as directed and luckily it hasn't rained since application. We've seen one or two caterpillars hatch but then within a day or so, I see them black and dead- so this is working! We had a terrible infestation and after two weeks we're now at no new caterpillars seen in 5 days. Rains expected for the next few days, so I will reapply the product periodically, as I'd like it to absorb into the new growth leaves (that are starting to grow). I followed the directions for dilution and used a lawn sprayer to ensure good coverage and a fine mist, versus a bottle sprayer. The product was easy to use and even though it provides long term protection, I do plan to reapply this season, the beginning of next season and throughout to combat the boxwood caterpillars that are decimating Michigan boxwoods. So far the natural solution is working well for me and I hope it continues to be successful as I prefer to not use harsh chemicals.
R**Y
I would give this 10 stars if I could!
1st review... We bought a bottle of this each spring for 2 consecutive years (2023-24), but that was after the moth-pocalypse that took off in '21, then accelerated exponentially in '22. We were too late before we realized that those Gypsy moths (I know they are called something else now, but... 🤷♀️ spongy moths? I don't remember) were literally stripping ever tree in our woods with no end in sight. The whole county, in fact, has been overrun with this scourge. It was worrisome, to say the least. We have massive mature walnuts in our front yard that are one of my very favorite parts of our home and in '22 I genuinely feared they wouldn't make it when the worms ate all the leaves off them in a matter of weeks. You could hear their droppings falling incessantly on quiet spring nights. The stuff of nightmares. Anyway, in '22 we tried sticky bands, gels and sprays... We cleaned all the leaf litter in fall. You name it. But we missed the primary window in May/June to knock them down. By '23 I was ready. We treated the trees as high as we could spray. Every tree we could reach was drenched consistently. By spring of '24 when we bought more, the population had noticably declined, but was still detrimental to the trees for sure. But we did the same, treating the trees several times at the critical instar period. The moths that came out in mid summer was nothing like the plague that swarmed us in years prior. In those first years it had been like a snowstorm in summer there were so many. Fast forward to today... June 2025. The caterpillars are gone. I haven't seen a single one this spring. Maybe there's a lonely band of rebel survivors out there plotting our trees demise, but they are keeping a low profile if so. No cocoons. No moths. Our trees are fully greened out (ignore the little branches that fell in the storm a few days back. Haven't gotten to picking them up yet). Our Norway Maple has still not quite recovered from the abuse it took - it was a moth delicacy apparently, but it is clearly making its comeback. All in all, this stuff was worth it. Yes, it took some dedication on our part to treat and repeat, as well as a lot of patience. The cure took some time to spread thru the moth population unfortunately. But it worked! My beloved walnut grove lives to see another few decades I hope. If you are on the fence about this product, try it. But be prepared to continuously apply during the critical period in your particular pest's life cycle. ID the pest, buy a sprayer and get to work. And don't just expect the worms to drop dead suddenly. Thats not how BT works. At least not for us. But it did work very well and it seems to be the perfect long term solution. Edit: One sad note to add: We also have several 1000 sq ft of native plant, herb and vegetable gardens, which mostly came out of the moth-pocalypse ok, and we avoided treating anywhere near them or the beehives (for obvious reasons), but insects travel. Unfortunately these past few years our native butterfly and moth populations declined precipitously as well. Was it the BT? I can only guess. But in almost 20 years here, we've never had a shortage of butterflies, moths, and even dragon flies until now. It could be a fluke. Correlation does not equal causation, but... I thought I should mention it. We stopped treating as soon as the pest population was controlled, so hopefully the beneficials rebound. We can only provide good habitat and hope.
M**S
Great purchase
This product is very effective for controlling the webworms that I’ve had in my trees.
L**S
Safe for pets, birds
I used it and a week later felt I needed to do again as was still seeing more dead grass so had to purchase 2nd bottle. It's nice not to worry about harming birds or pets but don't think it's as good at killing worms as stronger poisons that aren't safe for pets and birds reason for 4 stars.
R**Y
It Works!
Worked perfectly as described
A**R
Works great
Our pine trees were covered in bag worms. They killed 2 tree before i ordered this and sprayed all the others down. Saved my trees. Will definitely purchase again.
K**K
Don’t waste your money!!!
After 2 applications. The moths are still there . It had absolutely no effect on them ! Don’t waste your money! Update after 3 heavy applications the moths are gone !!! Update!!! Came back after 2 days .
A**A
Es para saber que están conprando
Que está muy bueno que lo compren porque si mata las plagas
Trustpilot
1 month ago
2 months ago