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Bah! So far all my attempts to grow stuff have gone badly - 1st my tomato plants (doing really well and growing huge) were devoured by red spider mites, yesterday I found hundereds of little catapillars all over my kale, and now my newish grapevine is covered in little bubble things.

They looks like tiny water droplets stuck to the stems and also to the underneath of the leaves - they are small, spherical and clear - and if I pick on off, slightly squishy.

Any ideas what these are? Based on my experience with my other plants (shoot up, looking really alive and healthy, then killed off by some annoying bug) I'm assuming that one day they'll all pop and little pod creatures will rush out and destroy my grape vine....

Hi jxm, I think it might just be the natural juices of the grapevine itself as they do tend to be a bit sticky. If the plant looks healthy I wouldn't worry about it. Perhaps you could post a photo (close up) of the problem on here if you have a digital camera just in case someone recognises it as something else. Vines tend to 'bleed' if they're injured & will ooze a little sticky fluid if you've pruned them at all, mine smells very fruity & is a bit sticky at the moment as I keep having to hack back the excess growth to a few buds past the grape bunches.

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Into every life a little rain must fall.

If you've been watering it (or you copt for a load of rain) it could be the plant getting rid of the excess moisture in its system (bit like sweat - only more fragrant )

I've got the same thing witha south African Succulent don't kno if you can see it.

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ntg

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Here's a pic of the bubbles -



and also a few of the leaves have got lumps like this one (any idea what this is?) -

Not sure Jxm, the bubbles don't look like any kind of pest but look a bit more 'jellified' than the 'juice bubbles' I get on mine sometimes. The bumps on the leaves could be caused by some kind of blister mite or could just be natural, I just went out & had a look at mine & some of the leaves are looking a bit blotchy now & some are yellowing & ready to drop but the new ones are still coming through fresh & green. If the bumps are only on a few leaves I'd suggest cutting them off just in case. Is your vine in a greenhouse? Have you got any fruit on it yet? If it's young you might not get any for a year or two but once the grapes have set the leaves aren't so important so it won't matter if you cut a few off.

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Into every life a little rain must fall.

I don't think you should worry JXM. I don't see anything drastic there. Plants are rarely perfect but I don't think you have anything which is a real problem. Let us know how you get on.

OH WHAT NOW????

The blistering effect seems to have spread to most leaves, but now there is something else - the are powdery looking patches starting to appear on the leaves (see top left and bottom right)...



Any idea what that is?

Please help, this is one of the few living things left alive after red spider mites and catapillers killed virtually everything else...

Hi Jxm, don't know about the blistering on the leaves but the powdery patches look like mildew. Have you got your greenhouse too hot and moist. Let some air circulate around it. If these white patches are not on all of the leaves take the affected ones off.
Good Luck.

Hi jxm, it looks like powdery mildew to me, grapes are a bit prone to it. It's usually caused by overcrowding & dry roots so you should make sure that you're watering it well & try & keep it well ventilated. Cut off the worst affected leaves & it should recover.If your grapevine is in a pot in the greenhouse & not too big maybe you could move it outdoors during the day to get some fresh air? Some varieties of grape are more prone to mildew than others, mine's an outdoor one & is usually O.K. though.

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Into every life a little rain must fall.

How do I know if it's an outdoor one? I hadn't really thought about it - just kind of assumed they needed to be indoors for the warmth. If they're outside don't they die if it gets frosty?

Hi JXM

I dont think that your vine will die of frost! I used to have one that had the root outside the greenhouse and the growing bit inside. That was in Devon. I dont have a vine at the moment but plan to. This is Normandy and our winters are harder than Devon but my neighbour has a vine outside that doesn't seem to mind temperatures of -13C!

Hi Jxm, you would have to know the variety & check out whether it was an outdoor type, there are some which aren't totally hardy or won't crop outside. Mine has been growing like mad outside for about 5 years now & has survived snow, frost, hail & gales so it must be pretty hardy (probably likes all the Manchester rain!) & produces lots of nice small grapes, but if you want to grow nice fat dessert grapes most of them prefer to be indoors or at least like roitelet's was with the vines trained into a greenhouse & roots outside.

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Into every life a little rain must fall.

Hi. Maybe you've sorted it all by now, but the yellow blistering looked like damage I had on my pumpkin leaves that I'd taken for spider mite damage. I sprayed the leaves to kill the spider mite and that seemed to stop the problem spreading. Though they too have now develped powdery mildew.

grrrrr.... what now?

The leaves are going real yucky...

just nipped into my garden to check on the state of my vine's leaves. They look similar the the first photo. Could yours be dying back in preperation for winter?? - Just an idea!?

Hi jxm, could be like Nicos says, just dying back as autumn approaches. Some vines have leaves which turn purple/red in autumn before falling. Looked at my outdoor one & odd leaves are totally yellow with brown crispy bits on-dying off but nothing to worry about just the changing season & the grapes look lovely & are ripening up.Attaching photo showing some of the grapes & 'crispy' leaf.

Attached Thumbnails

 

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Into every life a little rain must fall.

Not much up on vines, but many plants leak sap like thatwhen attacked by biting pests, aphids etc. The sap then gets infected with various fungal organisms. Soot mould is the most common one. All the books say the same thing, spray with suitable fungicide, remove the worst leaves, reduce the humidity but increase water to the roots. Check carefully for pests, especially if you have already had trouble with RSM, vines are prone to attack by them.