What is killing my squash?
Question:All of my squash related plants(yellow,pumpkins,zuccini... are getting white spots on the leaves. They soon turn yellow and then die. What is this and how to I stop it. It only attacks the squash, everything else in my garden is fine
Answers:
I had that problem with my pumpkins a couple of years ago. Killed every last one of 'em. Later I found a magazine article in a journal called, Texas Gardening, and it was all about planting pumpkins... the stuff is called powdery mildew.
I'll see if I can find you a treatment for it:
Pics of the stuff: http://www.ag.ohio-state.edu/~vegnet/rep...
Here is an article all about it, with control ideas as well... http://www.ext.vt.edu/pubs/plantdiseasef... I think our problem was that we planted a bunch of pumpkins in too small a space.
And one more article just for good measure: http://www.pumpkinnook.com/howto/disease...
Powdery Mildew, or Downey Mildew . Has it been very humid?Especially if that came after a period of drought stress. Clean up any infected leaves . Thin some , if needed, to help airflow. When you water, do it at the soil surface, keeping the plant dry . Spray with a solution of 1TBS/gal baking soda , + a little dish soap ( to make it stick) This is to prevent new, doesn't cure any infected parts . Check stems for holes at or near the soil line , & for the squash bugs that make the holes. That could weaken them enough to get diseases. Bury stems whereever possible, so that they root, & if one part is killed, you won't lose the whole thing.
I agree with scruffycat and mike, they're spot on.
possibly bugs...plant lil marigolds around the squash and i promise it will stop!
two things could be your problem: if you are watering in the evening, wetting the leaves, then that will cause white meldew to grow on your plants. its best to water in the morning, and by a drip system aroung the roots.
the second could be white flies or mites.
? squash borer beetles. Check the very base of the plant.
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