Information and discussion regarding garden diseases, insects and other unwelcome critters.
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April 5, 2007 | #1 |
Tomatovillian™
Join Date: Dec 2006
Location: Corpus Christi,Texas Z9
Posts: 1,996
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Bt- powder or liquid concentrate?
For those of you that use Bacillus thuringiensis, is their any advantage to using the liquid over the powder? It seems like it might be easier to apply.
Duane |
April 5, 2007 | #2 |
Tomatovillian™
Join Date: May 2006
Location: Rock Hill, SC
Posts: 5,346
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The liquid with a pump sprayer is certainly a lot easier to apply to the bottoms of the leaves.
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April 5, 2007 | #3 |
Tomatovillian™
Join Date: Dec 2006
Location: Corpus Christi,Texas Z9
Posts: 1,996
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Since they eat it anyway,would it be necessary to spray the bottoms of the leaves? Suze mentioned spraying her plants as a preventative measure when the live oaks start to bloom. I am assuming she uses the liquid
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April 6, 2007 | #4 |
Tomatovillian™
Join Date: Jan 2006
Location: Texas
Posts: 3,027
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Both the powder and liquid work, but I spray, because it is just so much quicker for a bunch of plants. You don't need to worry about the undersides of the leaves, or about getting an even coating on every single leaf like you would w/Daconil. Just try and get some spray on most of the plant.
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April 7, 2007 | #5 |
Tomatovillian™
Join Date: Feb 2006
Location: Alabama
Posts: 2,250
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Do your due diligence and find out what BT Aizawai is. You might also investigate BT Kurstaki though it is not as useful for tomatoes as Aizawai. There are numerous strains available and picking the right strain can be very important.
A beekeeper friend of mine made a bulk purchase of Xentari last fall and sold me one pound to try out on my tomatoes. Please note that it is in the original factory packaging with care and use labels. It is rated to kill various hornworms, cutworms, armyworms, etc. One pound is sufficient to kill 15 billion hornworms. I've never had that many on my tomatoes! Fusion |
April 9, 2007 | #6 |
Tomatovillian™
Join Date: Feb 2006
Location: Portland, OR
Posts: 43
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I used Spinosad last year instead of BT and had very good results. My hope was that it would reduce some of the other chewing insects as well as the hornworms. Not sure it did that, but I didn't see a single live hornworm all summer (only saw a couple of dead ones.)
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