Horn Worms

[rjake100]

One of my local big box stores carried BT. The other didnt. Their websites will tell you if a particular location has BT in stock.

[AdrianaG]

Originally Posted by Worth1

You should be able to get it at you local big box store.
I haven't bought any in a while though.
Worth

I checked my local Home Depot and it's only available online. They do offer free Store Delivery however.

[Worth1]

Originally Posted by AdrianaG

I checked my local Home Depot and it's only available online. They do offer free Store Delivery however.

Man that blows, it seems like every time I go in there they dont carry something anymore.
I know good and well a few years ago I bought mine there.

Worth

[TexasTycoon]

Originally Posted by AdrianaG

I checked my local Home Depot and it's only available online. They do offer free Store Delivery however.

Mosquito dunks are solid BT and readily available at most big box stores including Walmart. I'm not sure how you could use them to make a spray, but I bet you could figure it out. I just use mine in the watering can like I said, but I know that's not feasible for multiple plants or plants in the ground.

http://www.ghorganics.com/MosquitoDunks.html

Edit: Wow, I never realized there were different kinds of BT. When we saw our first hornworm, I looked up prevention and the mosquito dunks in the water thing was one of the methods I came across. Now that I research more, though, I see that the dunks are really only effective against mosquitoes and fungus gnats, so I guess we're just lucky we haven't seen another hornworm!

This was very helpful in explaining the differences between BT strains and what each is effective against: http://www.ext.colostate.edu/pubs/insect/05556.html

[AdrianaG]

Mosquito dunks are Bacillus Israelensis, are they equally effective as BT on caterpillars?

[AdrianaG]

Originally Posted by Worth1

Man that blows, it seems like every time I go in there they dont carry something anymore.
I know good and well a few years ago I bought mine there.

Worth

Yeah it sucks, and delivery time is 10 to 14 days. By that time my plants would be decimated. I'm going to check Lowes and Amazon, might as well get my Prime account money's worth. (But I hate that they mark up Prime items these days, so you pay in advance and pay when you buy, aargh!)

First world problems!😪

[b54red]

I have always found the BT dust at my local Ace Hardware. I found the spray BT at Tractor Supply.

Bill

[Worth1]

Originally Posted by b54red

I have always found the BT dust at my local Ace Hardware. I found the spray BT at Tractor Supply.

Bill

I think that might be where I bought my BT spray, Tractor supply.

Worth

[TexasTycoon]

Originally Posted by AdrianaG

Mosquito dunks are Bacillus Israelensis, are they equally effective as BT on caterpillars?

Good point. I've edited my statement above.

[AdrianaG]

Now I need to correct mine, mosquito dunks are Bacillus Thuringiensis subspecies Israellensis.

[AdrianaG]

Great! I have access to Tractor Supply and Ace in North Georgia.