1. Dismiss Notice
  2. Official TEG Poll: What is your garden style?
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  3. A few pictures from this week - Featured Thread
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  4. TEG Picture of the Week (POW) - Submit your Pics Now !!
    Click HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice

My very first time starting seeds cabbage disease

Discussion in 'Diseases & Pests' started by Madison, Apr 20, 2019.

  1. Apr 26, 2019
    Madison

    Madison Sprout

    Joined:
    Apr 20, 2019
    Messages:
    13
    Likes Received:
    2
    Trophy Points:
    9
    If you look at the seedling in the center of the photo that has the most specks. I can try and take a better picture this weekend. However, whatever this thing is has killed every single one of my cabbage seedlings. Nothing else was affected at all.
     
  2. Apr 26, 2019
    flowerbug

    flowerbug Garden Addicted

    Joined:
    Oct 15, 2017
    Messages:
    4,496
    Likes Received:
    3,463
    Trophy Points:
    267
    Location:
    mid-Michigan, USoA
    good to hear, because by now you'd have seen a lot more damage and trails (edit, i guess i spoke too soon).

    i did see my first cabbage butterfly Wednesday. was surprised they got started so early.
     
  3. Apr 26, 2019
    Madison

    Madison Sprout

    Joined:
    Apr 20, 2019
    Messages:
    13
    Likes Received:
    2
    Trophy Points:
    9
    They didn't get a chance to recover, they all died. If you look at the leaves of the plant in the center of the photo that is where the concentration of the specks is greatest. They are tiny so if you don't know what you're looking for it can be hard to spot.
     
  4. Apr 26, 2019
    flowerbug

    flowerbug Garden Addicted

    Joined:
    Oct 15, 2017
    Messages:
    4,496
    Likes Received:
    3,463
    Trophy Points:
    267
    Location:
    mid-Michigan, USoA
    how can you get a better picture if they're all dead? (i'm confused)...

    black specks may be aphids.
     
  5. Apr 26, 2019
    Ridgerunner

    Ridgerunner Garden Master

    Joined:
    Mar 20, 2009
    Messages:
    6,413
    Likes Received:
    4,673
    Trophy Points:
    377
    Location:
    Southeast Louisiana Zone 9A
    Bacillus thuringiensis (or Bt) is an organic approved insecticide. There are a few different types, that's why you need to know the pest, but in general they give the pest a stomach ache so they stop eating and starve to death. It doesn't take long. The most common one targets caterpillars.

    Since you are in Texas, why not send a good photo and description to Texas A&M, your land grant college. Or even better, call your county extension office. This link should help you find them. This is the kind of stuff your extension office should be able to handle.

    https://counties.agrilife.org/
     
    ducks4you and thistlebloom like this.
  6. Apr 26, 2019
    Madison

    Madison Sprout

    Joined:
    Apr 20, 2019
    Messages:
    13
    Likes Received:
    2
    Trophy Points:
    9
    I haven't thrown them away yet.. And they're still covered in black specks. They never had any aphids on them. Some of my other seedlings have aphids but not these
     
  7. Apr 26, 2019
    Madison

    Madison Sprout

    Joined:
    Apr 20, 2019
    Messages:
    13
    Likes Received:
    2
    Trophy Points:
    9
    Does this insecticide harm other, good bugs as well? Or livestock?
     
  8. Apr 26, 2019
    Ridgerunner

    Ridgerunner Garden Master

    Joined:
    Mar 20, 2009
    Messages:
    6,413
    Likes Received:
    4,673
    Trophy Points:
    377
    Location:
    Southeast Louisiana Zone 9A
    It is very species specific. The caterpillar one can kill many different kinds of caterpillars, some you might find beneficial. But it will not harm beetles or other insects. It will not harm bees.
     
  9. Apr 26, 2019
    catjac1975

    catjac1975 Garden Master

    Joined:
    Jul 22, 2010
    Messages:
    8,105
    Likes Received:
    6,484
    Trophy Points:
    377
    Location:
    Mattapoisett, Massachusetts
    Bacillus thuringiensis, often abbreviated as Bt, is a naturally-occurring bacteria that makes pests sick when they eat it. There are two strains commonly used as natural pesticides.

    Bacillus thuringiensis kurstaki (Btk) gives excellent control of leaf-eating caterpillars such as cabbage worms and tomato hornworms, but has no activity against insects that do not eat treated leaves. After the insects eat the bacteria, their guts rupture and they die. Bt is therefore one of the safest natural pesticides you can use in terms of controlling caterpillar pests of vegetables or fruits without harming beneficial insects.
     
  10. Apr 26, 2019
    catjac1975

    catjac1975 Garden Master

    Joined:
    Jul 22, 2010
    Messages:
    8,105
    Likes Received:
    6,484
    Trophy Points:
    377
    Location:
    Mattapoisett, Massachusetts
    Do they look like bugs?
     

Share This Page