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#1
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I had something that sounds very similar to that last year. All my water
hyth (forget what they're called but you know what I mean) had the same symptoms. I called the nursery where I bought them and they suggested I take them out of the pond and put them in another container of water, then spray them with an insecticide, rinse them several times and then put them back in the pond. Frankly, I was very leery of spraying them with an insecticide then putting them back. What if I didn't rinse all the insecticide off and killed all my fish? I noticed like you did, that if I held the plant under water, the tiny little bugs would float off the plant and then I noticed the fish eating them. I did that for about 3 times a week for about 3 weeks, never did get rid of all of them and then the season ended and I tossed all the plants (they were just floating plants anyway) and started with new plants this year. I've been keeping an eye out for them again this year but (knock on wood) not seen them yet. My pond btw is small and I can reach all the plants easily. Don't know if this helps but at least you've got moral support. BK "scs0" wrote in message om... I'm having a problem with something sealing up the leaves of my plants with some sort of a web. The leaves that have this webbing eventually die, and whatever it was really damaged my Thalia, Pickerel Rush, and a taro-like plant with smooth (not fuzzy&water repellant) leaves. Plants that do not have a large leaf sticking out of the water with a bowl-like shape, like a water lily, iris, Umbrella Palm, were not harmed. I originally thought it was a caterpiller because the webbing had tiny specs in it that I thought were feces, but learned that it was not the case. None of the leaves were chewed and the other day I noticed what looked like spit hanging from a large leaf which was really a wad of webbing filled with those specs: and I finally noticed that those specs were moving! They are much smaller than aphids and I think they are mites. Naturally, they are attacking plants that are difficult to reach. I've learned that mites hate moisture and saw that in practice as the ones that fell off of leaves that I brushed against got stuck in some sweat and stopped moving. So I've been spraying the plants with water several times a day for about 3 days now. Will this kill them? The pond is underneath a screened porch and doesn't get exposed to much in the way of rain. If water is deadly to them, then this might be the reason why they've thrived so well. But has anyone else experienced this? What are they exactly? What causes them to kill the leaf? Are they sucking them dry like an aphid? Does their webbing prevent respiration of the leaf? Thanks for any info |
#2
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I have the same thing, my water hyacinths are covered in them and they are
turning brown. I have thinned alot of them out but they are still there. This is the first year I have ever had them. None of my plants bloomed this year also. Carole NJ |
#3
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I had recently seen something that described spraying rose bushes with water
to get rid of spider mites, so I image-googled for "spider mite web." Take a look at this site & see if it matches what you've got: http://hortipm.tamu.edu/pestprofiles.../brcycmit.html. I don't know whether the spraying will harm the plants themselves, but it has to be less harmful than the pesticide treatment suggested by a nursery! (in another post in this thread). Anne Lurie Raleigh, NC "scs0" wrote in message om... I'm having a problem with something sealing up the leaves of my plants with some sort of a web. The leaves that have this webbing eventually die, and whatever it was really damaged my Thalia, Pickerel Rush, and a taro-like plant with smooth (not fuzzy&water repellant) leaves. Plants that do not have a large leaf sticking out of the water with a bowl-like shape, like a water lily, iris, Umbrella Palm, were not harmed. I originally thought it was a caterpiller because the webbing had tiny specs in it that I thought were feces, but learned that it was not the case. None of the leaves were chewed and the other day I noticed what looked like spit hanging from a large leaf which was really a wad of webbing filled with those specs: and I finally noticed that those specs were moving! They are much smaller than aphids and I think they are mites. Naturally, they are attacking plants that are difficult to reach. I've learned that mites hate moisture and saw that in practice as the ones that fell off of leaves that I brushed against got stuck in some sweat and stopped moving. So I've been spraying the plants with water several times a day for about 3 days now. Will this kill them? The pond is underneath a screened porch and doesn't get exposed to much in the way of rain. If water is deadly to them, then this might be the reason why they've thrived so well. But has anyone else experienced this? What are they exactly? What causes them to kill the leaf? Are they sucking them dry like an aphid? Does their webbing prevent respiration of the leaf? Thanks for any info |
#4
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Water will work on spider mites no doubt, WH has trouble with both mites
and aphids, if you wash the aphids off you'll just spread them to the rest of your plants. Better is to submerge the plants over night. Aphid aren't smart enough to let go and thus drown, yet if you wash them off they can do a pretty mean back stroke to the next plant. ~ jan On Thu, 21 Aug 2003 00:09:45 GMT, "Anne Lurie" wrote: I had recently seen something that described spraying rose bushes with water to get rid of spider mites, so I image-googled for "spider mite web." Take a look at this site & see if it matches what you've got: http://hortipm.tamu.edu/pestprofiles.../brcycmit.html. I don't know whether the spraying will harm the plants themselves, but it has to be less harmful than the pesticide treatment suggested by a nursery! (in another post in this thread). Anne Lurie Raleigh, NC "scs0" wrote in message . com... I'm having a problem with something sealing up the leaves of my plants with some sort of a web. The leaves that have this webbing eventually die, and whatever it was really damaged my Thalia, Pickerel Rush, and a taro-like plant with smooth (not fuzzy&water repellant) leaves. Plants that do not have a large leaf sticking out of the water with a bowl-like shape, like a water lily, iris, Umbrella Palm, were not harmed. I originally thought it was a caterpiller because the webbing had tiny specs in it that I thought were feces, but learned that it was not the case. None of the leaves were chewed and the other day I noticed what looked like spit hanging from a large leaf which was really a wad of webbing filled with those specs: and I finally noticed that those specs were moving! They are much smaller than aphids and I think they are mites. Naturally, they are attacking plants that are difficult to reach. I've learned that mites hate moisture and saw that in practice as the ones that fell off of leaves that I brushed against got stuck in some sweat and stopped moving. So I've been spraying the plants with water several times a day for about 3 days now. Will this kill them? The pond is underneath a screened porch and doesn't get exposed to much in the way of rain. If water is deadly to them, then this might be the reason why they've thrived so well. But has anyone else experienced this? What are they exactly? What causes them to kill the leaf? Are they sucking them dry like an aphid? Does their webbing prevent respiration of the leaf? Thanks for any info See my ponds and filter design: http://users.owt.com/jjspond/ ~Keep 'em Wet!~ Tri-Cities WA Zone 7a To e-mail see website |
#5
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In article ,
(scs0) writes: I'm having a problem with something sealing up the leaves of my plants with some sort of a web. they are red spider mites and I got rid of my with 2 30 gallon (empty cat sand )buckets. I removed the plants to one bucket and washed them down with Ivory soap and rinsed them in the second bucket where I watched to see if I got them all and then returned them to the pond. No sign of them since. Karen Zone 5 Ashland, OH http://hometown.aol.com/kmam1/MyPond/MyPond.html My Art Studio at http://members.aol.com/kmmstudios/K....M.Studios.html for email remove the extra extention |
#6
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I had recently seen something that described spraying rose bushes with water
to get rid of spider mites, so I image-googled for "spider mite web." Yes, that's it exactly! The webbing looks exactly like the web in that picture. The docs on Spider Mites seems to say they concentrate on the undersides of leaves, but I find them all over the leaves which is probably because my leaves are sheltered from the rain. So I've been hosing the leaves from a distance for about 5 days, since the lifecycle is 4-10 days I should hopefully damage the population with this water. They seem to be very, very vulnerable to water. I thought aphids were bad, but these mites seem even worse. Thanks Steve http://hortipm.tamu.edu/pestprofiles.../brcycmit.html. |
#7
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the tiny
little bugs would float off the plant and then I noticed the fish eating them. That's a problem with my fish, they're pretty stupid and refuse to eat bugs on the surface of the water. I had an aphid problem and would wash them off the leaves, but the fish would ignore them. In a previous pond, washed off aphids were considered a treat and hunted by my fish! Not these! So I doubt they'd go after the mites but from what I understand a mite won't survive a fall into the water anyway. I love duckweed, but my fish WILL eat that. |
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