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Thread: Plant pest problems

  1. #17
    Hello, I must be going... Not a Number's Avatar
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    The BACPS had a panel discussion on insecticides in 07 or 08. A summary of the discussion can found on their website.

    Have you dissected the rhizome of one of the dead plants to look for fungal or pest damage or infestation?

    Since you have thousands of plants and are a commercial entity you can maybe get help from the bogeyman "I'm from the Government and I'm here to help" in identifying the problem an recommending treatment.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

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    kulamauiman's Avatar
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    Quote Originally Posted by back2eight View Post
    Although I really appreciate all the conversation, I simply asked which of those products that I listed above would be the safest for my plants. I do plan on testing it on a few of them first before just wholesale soaking all my plants in it. I'm not an idiot. I've just never had to deal with insecticides on sarracenias before, and I thought some of you might have a suggestion of which one has worked good for you personally without killing your plants. The discussion is fine, but I still need to know which is the safest out of those that I pasted a few posts back. Thank you.

    how about this one from the resident former bogeyman. How many of those pesticides safe for people or not, safe for plants or not are listed for use on Sarracenia? Use of a pesticide in a manner inconsistent with the label is a violation of federal law. Similarly using a pesticide to treat a pest not specifically on the label is using the pesticide inconsistent with the label and is thus a violation of federal law. If the plant isn't on the label or the pest isn't on the label, you can not legally use that pesticide (with a few exceptions that relate to label interpretation). How can you then treat and know what you are using is allowable if you don't even know what the insect pest (if it is an insect) is that you are trying to kill? I apologies if this may sound like a rant, but I don't make open ended pesticide recommendations beyond follow the label.

  3. #19
    Not Growing Up! GrowinOld's Avatar
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    Back2,

    I have found the insecticides you mentioned (Rotenone/Pyrethrin) to work for a variety of bugs, & have not harmed my plants at all. Just be sure to mix it correctly (or slightly weak) as too much may be harmful. If you read labels, watch for advice like "use caution or not recommended... for sensitive/delicate plants like impatience, hibiscus, etc."

    In my experience, Sarrs & Neps have been very "tough", and not sensitive, but you need to use common sense, such as not applying anything in the heat of the day in the hot sun!

    I don't know that you need a systemic type insecticide, & while I have used it on occasion, I have not used that type on Sarrs/Neps enough to recommend it outright. Not that it has caused me a problem, but again, I have not used it more than a couple times, and lightly.

    I would suggest uprooting one of the most infested specimens & wash it off, and examine the roots & plant closely. You should try to determine if the beetle/bug/ant-like savages is actually chewing, sucking or directly feeding on the plants or their roots. Sometimes bugs will cause problems by infesting a plant, but not directly causing them physical damage.

    Try to determine what kind of damage the bugs are actually doing, and unless they are boring into the plant itself, a systemic may not even be needed. Also, it the bugs are eating the leaves but not the roots, then a systemic or spraying the leaves is in order. If however, they are gnawing on the roots, then soaking the soil & not spraying the leaves may be the safest route. Most of this is finding out what you are dealing with & then using common sense.
    Posting a couple good pics may help people here determine what kind of bugs you have, which is important if you are using an insecticide (especially a stronger one). Some types only work on certain bugs, and are near useless on other types of bugs.

    I have had many years of garden type experience... with many bugs & treatments, and have brought that experience over to the CP side of growing things. However, I am only experienced with things here in the mid-west, and don't know much about those monsterous bugs down there in the south!

    The sooner you get on this the better... & I would also recommend treating a few plants to start. Again, avoid the heat of day, full sun, hot-dry conditions, etc. Treating in the early morning or late in the day is usually best.
    By treating a few plants first, you should be able to quickly see if the chosen insecticide works, how well it works, and if it has a bad reaction to the plants. (What has worked for me may not work exactly the same for you! Any good grower knows this, especially with the variances of conditions & culprits!) I would also try to avoid getting any insecticide inside the pitchers!

    I have used more potent & stronger insecticides on some plants, & they had very little negative impact on the plants, however I also drained & rinsed out the bog-pools the following day or 2 after treatment (using fresh water), for once the bugs were killed, there was no reason to chance exposing the plants to it longer than necessary.

    Much of what people here are telling you is correct, however it is always going to be a risk, and it is going to be your risk. There is no way around that. Insecticides are not something we all regularly put on our CP's, unlike roses or lawns! So there is always going to be a bit more of a risk involved, for there isn't enough experimentation around to say for sure that you may not have any problems.
    (Even though I haven't experienced any problems with the Rotenones/Pyrethrins or many other types on Sarrs & Neps, but then I use care in measuring, determine what insecticide is appropriate for the plant/pest (again, different pests often need different insecticides) and I use methods of care & application I acquired back when I was learning these things from some old time nurserymen.) And while I may use some things for Sarrs/Neps, I don't use the same things on everything (like dews & vft's).

    I think people here need more info to give more accurate replies. [And then there are always those here with no experience... but lots of advice! They haven't appeared yet, but they will!] While you may not have gotten the answers you wanted, some people so far have offered some common sense thoughts & advice. But I realize you want & need more... but again, without some idea of what the bugs are or even what they look like.... along with what damage is actually taking place to the plants, even with actual experience with many insecticides, I can't offer you more advice.
    You really can't expect anyone to be able to just give you the "right answer" & tell you the right thing to do... especially for a bug/pest that we haven't even identified yet!

    BUT, to try to answer your main question outright... insecticidal soaps, Rotenone & Pyrethrins are about as safe as you can get. If you take a moment to google them, you will find that things like the Pyrethrins degrade quickly, and are even recommended for food crops.
    I myself, valuing my plants, still wash off & change the water once the bugs are killed. But here again, just because they are safe to use on your plants, doesn't mean they kill every bug/pest that may infest your plants. You need to look at the situation with a little different & broader understanding.

    Looking outside the box a bit, it is even possible that something like garlic/peppermint/soap or even mothballs may act as a safe to use repellent... driving the pests away. But again, I have no idea what pest you have (other than black bugs in the soil that look like sugar ants), nor has it been determined exactly what they are doing to your plants. If nesting in great numbers, their presence, soil movement & excretions may be enough to disturb the plants & roots. But there could be more to it.

    Like most of the things here, one size doesn't fit all.

    Good luck.
    Last edited by GrowinOld; 05-31-2011 at 11:17 PM. Reason: typo
    Experience is the best teacher. At least it used to be.
    But then, common sense isn't so common anymore, is it.


    http://www.terraforums.com/forums/sh...d.php?t=113866

  4. #20
    back2eight's Avatar
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    Thank you growingold. I fould some plain old Neen Extract and will start with that.

    I did have some aphids at the beginning of spring, which I'm used to. I saw the twisted pitchers rising up and looked closer and saw them on the pitchers. I have a garden safe 3-in-1 solution that always works for them. I mix it in a spray bottle. I usually see those at the beginning of every spring.

    But the ones that keep dying are starting to just FAIL first... I don't know how to describe it. They will look sickly and weak. In some plants I am seeing these little black sugar ant type things nesting in the soil, but not all of the ones that are dying have those. The dead ones have no rhizome - it turns into an orange mush. I thought it was root rot because that happens to a few every year coming out of dormancy.

    I wonder if there is anywhere I could take a sample to and have it tested?

  5. #21
    Never Knows Best gill_za's Avatar
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    Quote Originally Posted by back2eight View Post
    Thank you growingold. I fould some plain old Neen Extract and will start with that.

    I did have some aphids at the beginning of spring, which I'm used to. I saw the twisted pitchers rising up and looked closer and saw them on the pitchers. I have a garden safe 3-in-1 solution that always works for them. I mix it in a spray bottle. I usually see those at the beginning of every spring.

    But the ones that keep dying are starting to just FAIL first... I don't know how to describe it. They will look sickly and weak. In some plants I am seeing these little black sugar ant type things nesting in the soil, but not all of the ones that are dying have those. The dead ones have no rhizome - it turns into an orange mush. I thought it was root rot because that happens to a few every year coming out of dormancy.

    I wonder if there is anywhere I could take a sample to and have it tested?
    Picture is worth a thousand words...

    (no rhizome? orange mush? sounds like a fungus infection IMHO)

  6. #22
    Not Growing Up! GrowinOld's Avatar
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    I agree with Gill, lots of pics are good!
    BUT, in regards to what you have mentioned, it sounds like they are rotting on their own & possibly the bugs are making use of a good available home. (Possibly too much moisture, wrong conditions of some sort... heat + humidity is often good, but too much can do harm...you know, the common sense things.) Find a plant doing decent, & un-pot it carefully to have a lookie.

    I am big on examining things when a plant goes bad, and try to find out exactly what is happening.
    Anyone who's ever had a poor compost heap or a garden with the old tomatoes & veggys tilled in can attest to the vast array of bugs that are attracted to the stink of that mushy rotting flesh of all those vegetative remains. In fact, your description of the rhizomes reminds me of when I have picked up a tomato or peach from the ground, only to discover the bottom is rotted & gross, as I see a host of tiny beetles, ants & other bugs fleeing in escape. Yuck! But indeed, that is what I am reminded of.
    Yes you want to get rid of the bugs, for they will cause problems themselves, but I am unsure if they are the cause of the problem instead of just a symptom.

    The neem seems a reasonable start, although I am not fond of the oil all over. But I have used it for things like scale, mealy bugs & such with no bad effect on my plants. The oily residue isn't great, and I am not sure if it will be a problem if using it to soak the soil, but seeing as the plants are outdoors, I am sure it will wash away in time.

    As for actually addressing the problem, I think more investigation is needed. Just my thoughts.

    Good Luck!
    Experience is the best teacher. At least it used to be.
    But then, common sense isn't so common anymore, is it.


    http://www.terraforums.com/forums/sh...d.php?t=113866

  7. #23
    back2eight's Avatar
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    I thought root rot at first due to perhaps being too wet over the winter, but as more and more keep dying and I am not keeping them too wet, I just can't figure it out. If anything I keep them too dry. I've tried taking pics but can't get any to turn out. When I do an insect search the bugs just look like little black sugar ants.

  8. #24
    JRFxtreme's Avatar
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    Orthene wettable powder works well on Sarracenia. Neps too.

    Flytraps... not so much.

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