Mites passing thru a fabricoted lid??

Culturing Fruit Flies, other Insects. Supplements and Dusting.
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Philsuma
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Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 12:53 pm

I do not believe that mites of any size can pass thru the fabricote lids. I just don't.

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Re: Mites passing thru a fabricoted lid??

Postby joneill809 » Mon Dec 15, 2014 1:21 pm

Perhaps they get in through the lip of the cup and not the actual vents?
Jim from Austin please contact me if you are willing to trade offspring from:
lorenzo - schwinn line|NAIB true sips|fantastica nominant
http://www.oneillscrossing.com/dart-frogs/

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 1:48 pm

I don't think they can get into a cup at all. Mites may be congregating under the lip and then some spill over or fall into the cup when we take off the lid to feed out ect.

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Re: Mites passing thru a fabricoted lid??

Postby joneill809 » Mon Dec 15, 2014 2:17 pm

I'll grab a pic of an old beetle culture in a bed of diatomaceous earth. You can see a concentration of mites around the lip of the lid and a distinct ring of dead mites on the DE. I have noticed that the lid seals are not perfect so I'm pretty sure there are gaps a mite can get through. DE is awesome though - I have not had any booms since using it. Only problems I have encountered are with my really old bean beetle cultures.
Jim from Austin please contact me if you are willing to trade offspring from:
lorenzo - schwinn line|NAIB true sips|fantastica nominant
http://www.oneillscrossing.com/dart-frogs/

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 2:45 pm

I doubt they are able to get in a snapped on lid either. Mites crawl. Mites climb. They are on the lip and outside of the cups and get inside when we feed out ect. They are not getting thru the fabric or past a well snapped lid.

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Re: Mites passing thru a fabricoted lid??

Postby frogfreak » Mon Dec 15, 2014 6:43 pm

I think they can do both. My tray covered in DE and dead mites would suggest then can.
Glenn

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 6:48 pm

frogfreak wrote:I think they can do both. My tray covered in DE and dead mites would suggest then can.


I'm still betting all those carcasses you find are from OTHER neighboring cultures that crawled to where you found them.

Mites are small but lids should seal damn near airtight and similar with fabric. I need to see a microscope pic (or video) of a jailbreak in progress or I still don't believe.

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 6:50 pm

OR there was some 'spillout' when you feed from those cultures and you 'assisted' the mites already inside ,getting out.

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Re: Mites passing thru a fabricoted lid??

Postby frogfreak » Mon Dec 15, 2014 6:57 pm

How can they get out of a neighbouring culture if they can get through the fabric or gap in the lid? :P

Nope, I pull a culture from the tray and dump over a funnel. Table is cleaned after every feeding.

Take an unopened FF culture and put it on a white surface. It will have a ring of mites around it in no time.
Glenn

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Dec 15, 2014 11:10 pm

Mites are crawling all around any area where cultures are kept. They get out when lids are opened for feeding out...funnels be damned. Wiping be damned. SOME amount of free-crawling mites are always present around cultures due to opening them to feed out.

It would take a serious experiment to prove that they are getting out of the lid and fabric....on their own.

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Re: Mites passing thru a fabricoted lid??

Postby joneill809 » Mon Dec 15, 2014 11:53 pm

Well I'm just recounting what I've seen, and how it's impacted my FF and BB culturing. Recently I started keeping BB, so I'm new and not familiar with the culture cycles. I also don't feed off them that regularly yet. They are in their own culture box, as are all species of FF I keep. Each box is lined with ~1" of DE.

In November I had a mite problem in my BB cultures. There were 11 cultures - 4-3-4 orientation - with no cultures touching. One by one the three in the middle developed mite infestations as they hit the three month mark; I had not opened or moved the middle ones for that month. They each developed a distinct ring of mite carcasses around their base as the mites died exiting the cultures. The darkest part of the rings (assuming the deepest pile of carcasses) were right next to the culture, and the ring lightened further away from the cup wall. There were concentrations of mites on the fabric lids and the lip of the cup, both inside and out. Not scientific proof, but the implication was the mites were in the culture, boomed, and got out...three times. Now I sift out the bean beetle carcasses and waste periodically :) but it's enough for me to strongly suspect these lids are not mite proof, and that additional steps are required to prevent and isolate cultures from cross contaminating.
Jim from Austin please contact me if you are willing to trade offspring from:
lorenzo - schwinn line|NAIB true sips|fantastica nominant
http://www.oneillscrossing.com/dart-frogs/

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Tue Dec 16, 2014 12:45 pm

Gee I dunno Jim. As much as I like to process your observations above, I still think that if any lid is taken off whatsoever - all bets are off as far as mite origin is concerned.

What we know:

Mites are in or around almost ALL foodstuffs - grain like foods. Heck mites are on US right now. On our face. On our eyebrows ect. They are crawling all over our yard. Our pool. Our pets, ect. They are everywhere. Always.

They climb.

They tend to congregate on edges and in cracks. This is why FF cultures are better stored on flat trays and not in cubicles or cabinets or in enclosed boxes.

When they are found dead - all fluffy and brown and 'yeasty' (heh, made that term up just now) it is still IMO, very much a mystery if they were COMING or GOING.

some thoughts.

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Mon Jul 06, 2015 12:25 pm

Now someone is claiming maggots are 'getting out' of the fabri-cote lids??? Impossible.

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Re: Mites passing thru a fabricoted lid??

Postby edwardsatc » Tue Jul 07, 2015 10:03 am

Philsuma wrote:Now someone is claiming maggots are 'getting out' of the fabri-cote lids??? Impossible.


I've seen maggots chew through the fabri-cote lids when the culture was kept too moist (fabric in lid is moist).

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Re: Mites passing thru a fabricoted lid??

Postby edwardsatc » Tue Jul 07, 2015 10:14 am

Philsuma wrote:I do not believe that mites of any size can pass thru the fabricote lids. I just don't.


1st instar grain mites can be as small as 0.07 mm, At that size they are perfectly capable of working their way through a fabric lid.

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Tue Jul 07, 2015 10:16 am

Thanks Don. Diatomaceous Earth it will be then!

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Re: Mites passing thru a fabricoted lid??

Postby Philsuma » Fri Jun 03, 2016 11:03 am

I still feel that the vast majority of mite infestations occur by:

#1 - using a contaminated culture as seed stock for the new culture (the largest factor by far)

#2 - stacking culture cups - making it too easy for mites to travel / creating a superhighway

#3 - When feeding out, or transferring flies to the dusting cup, the opening of the lid and tapping out of the flies allows mites to get on the lip of the lid and outside the cup.

in the end, mites are a minor inconvenience to our hobby unless you are allergic or have poor dedication to remaining on a culture making schedule.


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