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What do these yellow spots mean?
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What do these yellow spots mean?
This is a cucumber leaf. I'm used to mildew. But this seems different. I'm thinking it might mean something's been biting them. Thanks!
markqz
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Join date : 2019-09-02
Location : Lower left hand corner
sanderson likes this post
Re: What do these yellow spots mean?
Does anything here look like a possible match? My squash and cucumber leaves are destroyed by aphids, spider mites and/or white flies before any disease has a chance to wreak havoc.
https://plantvillage.psu.edu/topics/squash/infos
https://plantvillage.psu.edu/topics/squash/infos
Re: What do these yellow spots mean?
markqz wrote:This is a cucumber leaf. I'm used to mildew. But this seems different. I'm thinking it might mean something's been biting them. Thanks!
Looks like it might be Downy Mildew. Check the underside of the leaf for fuzzy, dark gray spots (spores).
"In short, the soil food web feeds everything you eat and helps keep your favorite planet from getting too hot. Be nice to it." ~ Diane Miessler, "Grow Your Soil"
sanderson likes this post
Re: What do these yellow spots mean?
Thanks! Probably Alternaria leaf blight from Sanderson's list, though I imagine it goes by many local names.OhioGardener wrote:Looks like it might be Downy Mildew. Check the underside of the leaf for fuzzy, dark gray spots (spores).
I've got rollie pollies actually climbing way up in the Cucumbers! They're probably spreading the mildew/fungus.sanderson wrote:Does anything here look like a possible match? My squash and cucumber leaves are destroyed by aphids, spider mites and/or white flies before any disease has a chance to wreak havoc.
https://plantvillage.psu.edu/topics/squash/infos
markqz
Forum Moderator- Posts : 914
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Location : Lower left hand corner
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