Got Bed Bugs? Bedbugger Forums » Detection / Identification of bed bugs

age of nymph

(11 posts)
  1. thirdusername

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    Posted 2 months ago
    Sun Dec 17 2017 0:49:23
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    How old is this nymph?
    https://imgur.com/a/F9fs9

    17 days after my 3rd treatment, grrr.
    Back to nightmares.

    I am NOT an expert.
    My opinions are just opinions, they may NOT apply to yours or any situation.
    My advice is to always do a LOT of research.
    A lot of what I read contradicts other stuff on the Interweb.
  2. loubugs

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    Posted 2 months ago
    Sun Dec 17 2017 5:29:16
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    thirdusername - 4 hours ago  » 
    How old is this nymph?
    https://imgur.com/a/F9fs9
    17 days after my 3rd treatment, grrr.
    Back to nightmares.

    Just to clarify, is the ruler mm or inches?

    Professional entomologist/arachnologist. I consult on all matters dealing with insects and arachnids, including those of natural history and biology to pest management and forensic entomology investigations.
  3. thirdusername

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    Posted 2 months ago
    Sun Dec 17 2017 12:28:37
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    At least I remembered the ruler this time.
    The ruler has both inches and mms but this is the mm side.
    It just happened to be more convenient.

  4. loubugs

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    Posted 2 months ago
    Mon Dec 18 2017 8:40:07
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    Guess: Looks around 3rd instar, possibly 4.

  5. thirdusername

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    Posted 2 months ago
    Mon Dec 18 2017 10:09:07
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    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

  6. loubugs

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    Posted 2 months ago
    Mon Dec 18 2017 12:47:22
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    thirdusername - 2 hours ago  » 
    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

    Not exactly. You're basing your estimate on an insect that was a first instar at time of treatment. It could have been a 3rd instar at that time and has not fed since that time. It hadn't been hit with any insecticide or crawled over any at time or since time of treatment.

  7. thirdusername

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    Posted 2 months ago
    Mon Dec 18 2017 13:09:45
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    loubugs - 4 minutes ago  » 

    thirdusername - 2 hours ago  » 
    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

    Not exactly. You're basing your estimate on an insect that was a first instar at time of treatment. It could have been a 3rd instar at that time and has not fed since that time. It hadn't been hit with any insecticide or crawled over any at time or since time of treatment.

    I hadn't thought of that.
    I'm wondering if my computer desk needs better treatment.
    I wonder if they would treat it better if take the monitor, keyboard and mouse off.

  8. loubugs

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    Posted 2 months ago
    Mon Dec 18 2017 13:23:26
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    thirdusername - 11 minutes ago  » 

    loubugs - 4 minutes ago  » 

    thirdusername - 2 hours ago  » 
    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

    Not exactly. You're basing your estimate on an insect that was a first instar at time of treatment. It could have been a 3rd instar at that time and has not fed since that time. It hadn't been hit with any insecticide or crawled over any at time or since time of treatment.

    I hadn't thought of that.
    I'm wondering if my computer desk needs better treatment.
    I wonder if they would treat it better if take the monitor, keyboard and mouse off.

    In some infestations, the bed bugs harbor in keyboards and computers. I believe this is usually higher infestations. How about the computer chair? Most infestations are centered around where the host stays most and that is usually a bed, but can be a sofa, for instance.

  9. F. Pazos

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    Posted 2 months ago
    Tue Dec 19 2017 3:48:27
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    loubugs - 14 hours ago  » 

    thirdusername - 11 minutes ago  » 

    loubugs - 4 minutes ago  » 

    thirdusername - 2 hours ago  » 
    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

    Not exactly. You're basing your estimate on an insect that was a first instar at time of treatment. It could have been a 3rd instar at that time and has not fed since that time. It hadn't been hit with any insecticide or crawled over any at time or since time of treatment.

    I hadn't thought of that.
    I'm wondering if my computer desk needs better treatment.
    I wonder if they would treat it better if take the monitor, keyboard and mouse off.

    In some infestations, the bed bugs harbor in keyboards and computers. I believe this is usually higher infestations. How about the computer chair? Most infestations are centered around where the host stays most and that is usually a bed, but can be a sofa, for instance.

    I have to agree (as always with Lou), but I'd like to add that it is becoming more often that people sleep with tablets and phones in the bed, those items sometimes are with a cover, and it is becoming more often for us to find bugs inside....

    Professional PCO based in Hong Kong specialized in Bed Bugs.
  10. loubugs

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    Posted 2 months ago
    Tue Dec 19 2017 7:17:06
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    F. Pazos - 3 hours ago  » 

    loubugs - 14 hours ago  » 

    thirdusername - 11 minutes ago  » 

    loubugs - 4 minutes ago  » 

    thirdusername - 2 hours ago  » 
    So it already fed 3-4 times.
    It has been 17 days since the last treatment.
    It must have fed every 5 days and didn't die from the poison.

    Not exactly. You're basing your estimate on an insect that was a first instar at time of treatment. It could have been a 3rd instar at that time and has not fed since that time. It hadn't been hit with any insecticide or crawled over any at time or since time of treatment.

    I hadn't thought of that.
    I'm wondering if my computer desk needs better treatment.
    I wonder if they would treat it better if take the monitor, keyboard and mouse off.

    In some infestations, the bed bugs harbor in keyboards and computers. I believe this is usually higher infestations. How about the computer chair? Most infestations are centered around where the host stays most and that is usually a bed, but can be a sofa, for instance.

    I have to agree (as always with Lou), but I'd like to add that it is becoming more often that people sleep with tablets and phones in the bed, those items sometimes are with a cover, and it is becoming more often for us to find bugs inside....

    Yes, very good point. Back, again, to host behavior.

  11. thirdusername

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    Posted 2 months ago
    Tue Dec 19 2017 11:03:23
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    My phone has a very minimal plastic case and it doesn't cover the touch screen. I inspect it a lot so I think it is clear.

    My computer chair was on it's side after they last treated so I assume it was sprayed (it did take 17 days after treatment to see a bug).

    Twice I've found one on my pants while sitting at my computer desk after a treatment (17 days and 19 days after). I thought it dropped down from the desktop onto my thigh but it could have come from the chair. I doubt it came up from the floor because I have short socks so it would have found bare skin going in my pants leg. It is very frustrating to start to get my hopes up that they are gone and then be disappointed. I don't like using my computer any more.

    I've been reading about canine detection and the ads say inspections by people are 30-35% accurate (I'm sure mine is less because he is supplied by the landlord and he always seems in a hurry to spray and go. I don't even think he inspects, just reports if he sees anything while spraying). Dogs are 95-98% accurate. I'm not going to pay for less than 100% accuracy.


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