250 Million Live Beneficial Nematodes Hb

These worked wonders!! Better than all of the other flea treatments we tried!! Best money we ever spent!!

Hugely impactful for my garden this year. Kept the cucumber beetles, squash bugs and other insects under control. I'll be using this each spring.

Good alternative for chemicals in the lawn. Easy to apply. I think they are effective, but sometimes I am not sure how to tell.

I waited to give this review. We had ants, termites and fleas we needed to deal with. We got the Hb and the Sc verities. The Hb is listed as good for termite queens, ants, and adult fleas as well as many others. Hb stands for Heterorhabditis bacteriophora. I applied as soon as we received the nematodes and used them in a bit more concentrated then then was directed. The termites we had in an old tree and one wall haven't been seen since. The cat didn't have any fleas to speak of for ages despite this being a major flea area. The ants have been our major pest. Since we moved here we had been feeding them borax and sugar or Aspartame. Despite continually poisoning them they just kept coming. Found out we have Argentine Ants that have multiple queens making it next to impossible to wipe them out. Long story short the ants disappeared for months. Not a single ant for months. We couldn't believe it hardly. Talked to the neighbors who all have ants and have been poisoning and or trapping them with no end of the battle in sight. They all wanted to know about the beneficial nematodes. At least two neighbors are planning on getting some after hearing about us not having them for almost a full year. We applied it in the middle of May and only now next January are we finally seeing ants again. We will be buying more in a month or two as the weather gets a bit warmer. Worked incredibly well. UPDATE 2018: Still loving these things. I have been getting more every 1 to 1 1/2 years and have always had them arrive alive and healthy judging by how quickly the bugs disappear. I really recommend these if your having issues with the pests these are listed as attacking. UPDATE 2020: Just ordered and applied another batch. Still love them. I still feel that these are amazing and can’t recommend them enough. Buy them...seriously just get these if you have ants or termites or other pests. If you have fleas get the sc variety as those are the best for fleas. Those also have been wonderful. Did I mention that I am really impressed with these nematodes? UPDATE 2025: Just made another order of these as those little pesky ants are back. Still incredibly impressed with these nematodes. I still recommend them to everyone who mentions having issues with ants. I had last bought these in 2023 and again in the spring of 2025. I had been seeing ants in multiple rooms and the day after spraying around the outside base of our house and yard I haven't seen an ant. These are the only thing that truly works from my experience fighting ants. I also like getting the Sc-Steinernema carpocapsae beneficial nematodes for our yard. Those work great for fleas and some caterpillars.

I live on 1 acre of property so I bought 2 packages of 50 million nematodes each which was enough to do 2 acres of property . I used 1 package as per the instructions the day after I received them on about a 1/4 of of the lawn , then 2 weeks later I used the second package on the same section of lawn . I kept everything wet as per the instructions . I bought this crap for fleas and ants and have seen " ZERO " positive results . The only results I have seen are " New " ant mounds being built just a few feet away from the original ones . When I spraying this crap on the lawn , I made sure to soak the ant mounds thoroughly . Keep in mind , I used enough of this fictitious powder to do 2 acres of land on only a 1/4 of my 1 acre property . Did the nematodes I purchased die from extreme heat due to improper shipping ? Or , were there any of those things really in those 2 - $ 35 dollar packages of brown powder to begin with ? Buy at your own risk .

I was shocked at how well these worked. I was worried maybe they had died because all the dry ice had melted by the time I got home from work to bring them inside. Then I kept them in my fridge for 3 days until I had the time and the weather to apply them. I sprayed them with a sprayer on my thousand sq foot backyard. The next day I dug up some grass to look at the grubs and they were completely writhing in pain. I don't normally wish pain on a creature, but these grubs are not only killing my grass but they are attracting skunks which keep spraying my dog. I plan to apply another dose this spring.

We first used beneficial nematodes about 17 years ago in our Virginia lawn. The mole situation greatly reduced and we forgot to maintain it until last year! Super mole infestation.......... so we ordered these from Nature's Good Guys & they arrived super fast and perfectly refrigerated with a cold pack. We ordered 50 million and also purchased a new 2 gallon sprayer just to be sure there was nothing in it that could harm the living nematodes. Easy to apply - we watered before and after and applied at dusk. Cautiously optimistic about the results but will post in a few months if effective. - - (hopefully because last month we watched as a hosta began wiggling in our yard and then the root disappeared from below as it was devoured by a vole!) The nematodes kill the grubs that the moles need to thrive.

I bought several varieties of beneficial nematodes early spring of 2020. I applied them as directed. It virtually eliminated all the Japense Beetles (aka June bugs) in my yard. I used to collect hundreds in the beetle trap. This year, I had no beetles in a trap (with new attractant). Saw none. But I still had tons of flea beetles and the cucumber beetles won again. Flea beetles are mostly annoying. Cucumber beetles end up killing my cucumbers as they transmit bacterium wilt. I did grow a disease resistant variety that survived longer, but my favorite Suyo Long cucumber succumbs way too early. I will try again spring of 2021.