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dubias dying off! plz help


Olympus
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A few months ago I lost most of my Dubias. I thought it was from my house heater failing and they got to cold but now its happening again. They act like they are parylized and die. I'm losing about 50 a day. I bought 5000 mediums and grew them to adults and now they are dying. My temps are at 90. Constant water crystals and chow. Plz help!

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All the adults are fresh adults. I make all my own chow. I'm not sure how to post pics from my phone. I've raised Dubias for 2 years and never had this problem until last winter. All my temps have been perfect though and now its happening again

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  • 3 weeks later...

I'm going through this myself and finally decided after a year of fighting and cleaning out the bins completely a few times and downsizing twice to just bite the bullet and cull the entire colony. (Last time I killed off about 90% and it didn't work.) I'm hoping to find "fresh" adults locally to start back up in the next few weeks. It was not easy making that decision, but knowing that any future roaches born were doomed to die ugly, feeling that I couldn't safely feed them to anything without knowing for sure what was wrong, and not knowing if it could spread to my other species I felt I had no other choice.

On a freshly molted adult that was dead I found what looked to be roundworms. They did not seem like maggots, but looked like some sort of nematode. And my colony has been acting exactly the same as yours - neurological signs, death, and then very quickly being eaten (either by whatever hatched out of them or by the other roaches.) Haven't been getting many nymphs either. I had been thinking it was something mental causing them to attack and eat each other, but the presence of nematodes was the red flag and there was no more waiting.

I will say this - the invert room is a pleasant smelling place for the first time in months! And so far there's no sign of the "infection" having spread. *crossing my fingers*

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  • 2 weeks later...

All the adults are fresh adults. I make all my own chow. I'm not sure how to post pics from my phone. I've raised Dubias for 2 years and never had this problem until last winter. All my temps have been perfect though and now its happening again

I agree about the pesticide thing. When I give my roaches apple slices or whatever fruit, I peel them competely making sure they don't get any skin at all. Rinse all fruit and veggies thoroughly.
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