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Google
Is this powdery mildew?
4 posters
Page 1 of 1
Re: Is this powdery mildew?
Knock, knock, anyone there?
HPartin-
Posts : 120
Join date : 2011-02-14
Location : 7b (Angier, NC)
Re: Is this powdery mildew?
I would guess that since there isn't any mildew on the leaves, you don't have powdery mildew. My suggestions would be to check the stems and make sure you don't have squash vine borers and then maybe do a soil test to see if you have a nutrient deficiency.
How many different kinds of compost makes up your Mel's Mix?
How many different kinds of compost makes up your Mel's Mix?
Blackrose-
Posts : 710
Join date : 2010-03-21
Age : 49
Location : Aurora, Ontario, Zone 5a
Re: Is this powdery mildew?
I checked for squash borers. That was actually my first guess. I've been just sitting around waiting for those guys to show up for the party. I guess I have a nutrient issue. . We've had lots of rain and my guess is that nutrients are washing out. I fertilized it with fish fertilizer last week: 2 T per 2 gallons of water for 25 sq. feet and I don't know if this is a response to this or a whole new problem.
This is my main complaint with Mel's Mix: This is my second season and both times I have had nutrient issues. My first 3 boxes had 4 compost components and I had nitrogen problems and ph issues. The 2nd set of 3 were mixed with 6 (black Kow, mushroom, garden, forest, worm, and Bumper Crop) and looks like I have the same issues. I tested the soil after mixing and it looked really good. But I seem to have the same results. Yellow leaves and slow growth in squash, green peppers, eggplant and green beans. My tomato plants are turning yellow which looks like it might be an iron deficiency. I'm just a little tired of problem solving soil. I'm not even into bugs yet :scratch:
This is my main complaint with Mel's Mix: This is my second season and both times I have had nutrient issues. My first 3 boxes had 4 compost components and I had nitrogen problems and ph issues. The 2nd set of 3 were mixed with 6 (black Kow, mushroom, garden, forest, worm, and Bumper Crop) and looks like I have the same issues. I tested the soil after mixing and it looked really good. But I seem to have the same results. Yellow leaves and slow growth in squash, green peppers, eggplant and green beans. My tomato plants are turning yellow which looks like it might be an iron deficiency. I'm just a little tired of problem solving soil. I'm not even into bugs yet :scratch:
HPartin-
Posts : 120
Join date : 2011-02-14
Location : 7b (Angier, NC)
Re: Is this powdery mildew?
Sorry for not resonding earlier, I needed more coffee. My crookneck, some of them, are doing the same thing, unfortunately they are in boxes without MM (long story), so I really cannot compare that issue. It may be that you got some compost that was not fully composted. I know you said it's not bug time yet, but you may have some yellow cucumber beetles out there. They are hard to spot, and will do the same damage as the squash bug, suck the juice from the plant and leave behind a bacteria that damages the plant. I started mine from seed this year, and I over planted to insure I got some, we love the stuff, my zucchini is doing great, but the crook neck is not nearly as pretty. I have two plants I am considering pulling up, and quite possibly replanting, as we have plenty of time. If your soil test shows something is missing (we've had a wet spring in the south, nutrients may be washing away) you may want to try a compost tea. Fish emulsion is great, but may be lacking something. Also last year here was just not a good year for tomatoes and squash, it may just be a bad year there for you. I have yet to talk to someone in our area who had a good year for either plant, and that is very unusual. No one knows why it happens, it just does. I did have a plant this year that looked like the ones in your picture, I trimmed the leaves, and they started to come back.
Keep us posted.
Keep us posted.
Re: Is this powdery mildew?
Powdery mildew shows up as powdery white spots and splotches on the leaves. I don't see that in your pictures. I'm afraid it does look like more of a nutrient issue. You've got a good selection of composts, though, so that makes a nutrient deficiency seem unlikely. :scratch:
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