HELP with pests on grape and artichoke leaves?

DandyLioness (CA 9, SZ 14)

8 years ago

These are the best pics I can take. First is the artichoke leaves. Lots of holes and the leaves just keep dying.

And here is the grape. Saw this bug in the artichokes as well.

And some strange webbing or something?

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Comments (7)

kimmq
8 years ago
Have you taken samples of them to your local office of the University of California Cooperative Extension Service? http://ucanr.edu/

kimmq is kimmsr
ronalawn82
8 years ago
DandyLioness, image 2 shows a ladybug - a beneficial insect that preys upon soft scales. Image 3 may show such an insect. Image 1 shows a serious condition which may be a fungus. Check out this interesting LINK to see if it helps.
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DandyLioness (CA 9, SZ 14)
Original Author
8 years ago
That is not a ladybug. It is about 1/4 the size and not red at all. And the browning of the leaves is being caused by the insects. It only appears where the leaves have them crawling all over. Look closely in image one to see the insects in question.
ken_adrian Adrian MI cold Z5
8 years ago
spider mites ...????

https://www.google.com/search?q=spider+mites+on+grape&source=lnms&tbm=isch&sa=X&ei=wOt1Vd2LDI-UyQSB_INg&ved=0CAcQ_AUoAQ&biw=873&bih=745&dpr=0.9#tbm=isch&q=spider+mites+on+grape+leaves

if so.. big time ...

those black spots among the white.. is usually scat ... but not for SMs ....

have you looked at night???

you might want to try the peeps in the fruit forum ...

ken
DandyLioness (CA 9, SZ 14)
Original Author
8 years ago
spider mites are much smaller than these guys... and no i haven't taken samples in. Not sure how to go about doing that.
jean001a
8 years ago
It's very difficult to see detail in your images. So, if that's the closest we can get, it would be a good idea to take samples of critters and damage to your county's Extension Service office. Find that office here: Extension offices in CA

http://ucanr.edu/County_Offices/

About ladybugs. They comes in more colors than red. However as I said earlier, I can't be certain of the critter's ID in 2nd image. Possibly a tortoise beetle?

And picture #1 may have some beneficial insects, too.

I've never seen anything that makes so many tiny dark dots. So I won't even guess.

It might help if you show us the plant overall as well as the pattern of the drying/browning on leaves.
blueharv
7 years ago
Hi. It's probably too late to help, but I think it is a lady beetle and it's actually eating the powdery mildew on your plants. I have the same problem w/ my artichokes. I thought it was the beetles causing the problem, but decided to look into powdery mildew and found this article. It mentions that powdery mildew can be a problem for artichokes, causing yellowing and browning (check!) but there is one kind of lady beetle that eats it: Psyllobora. It's super tiny, brown and white, and looks a lot like the guys in your photo. Sadly, it took me days of googling and I found that nugget only hours after spraying...

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HELP with pests on grape and artichoke leaves?

Comments (7)

kimmq

ronalawn82

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HELP with pests on grape and artichoke leaves?

Comments (7)

kimmq

ronalawn82

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DandyLioness (CA 9, SZ 14)
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