View unanswered posts | View active topics It is currently Tue Sep 26, 2017 4:33 am



Reply to topic  [ 5 posts ] 
 No crawl off 
Author Message

Joined: Thu May 18, 2017 1:55 pm
Posts: 8
Location: Hamburg
Post No crawl off
Hey,
I'm having a problem with my bin, as almost all grubs are deciding to pupate in the bin rather than leaving it, as you can see on the photo. I had very good crawl off when I did not use any drainage material, however the bin was a stinky wet anaerobic mess. Then I added coconut coir, which got rid of the smell in a few days, but the larvae like it so much now they won't leave. I already flooded the bin for one hour up to the top of the substrate, but it did not induce any crawl off. How long do I have to flood it, so I get good crawl off?? I don't want to drown them. Is it possible to have too much drainage material in proportion to food?


Attachments:
Picture1.jpg
Picture1.jpg [ 127.33 KiB | Viewed 454 times ]
Sun May 28, 2017 3:39 pm
Profile Send private message
User avatar

Joined: Mon Mar 21, 2011 3:26 am
Posts: 214
Location: Durban, South Africa
Post Re: No crawl off
1. Pupae crawl around the periphery of the bin, looking for a way out.
Ramps like this are much more effective. In other words, don't leave a gap.

2. As a rough guess, how many grubs do you have in the bin?
If it's only a few hundred, they've got no incentive to crawl off.


Attachments:
Ramps.jpg
Ramps.jpg [ 4.93 KiB | Viewed 444 times ]
Mon May 29, 2017 12:37 am
Profile Send private message

Joined: Thu May 18, 2017 1:55 pm
Posts: 8
Location: Hamburg
Post Re: No crawl off
PeteB wrote:
1. Pupae crawl around the periphery of the bin, looking for a way out.
Ramps like this are much more effective. In other words, don't leave a gap.

I know it's far from optimal, but in the beginning it worked satisfactory.

PeteB wrote:
2. As a rough guess, how many grubs do you have in the bin?
If it's only a few hundred, they've got no incentive to crawl off.

Right now, probably just a few hundred. That's very interesting, I didn't know this would play a role. Thanks for pointing that out.


Mon May 29, 2017 6:14 pm
Profile Send private message

Joined: Sun Nov 06, 2016 8:05 pm
Posts: 21
Post Re: No crawl off
Also, it's easier for them to climb out if the bedding they're in is moist. I can't tell for sure, but yours looks pretty dry. I've found they can easily climb vertically in a new (very smooth) bucket if they're wet. Not if they're dry.


Tue Sep 19, 2017 9:03 pm
Profile Send private message
User avatar

Joined: Tue Sep 12, 2017 9:39 pm
Posts: 6
Location: Lakewood, CO
Post Re: No crawl off
I think I am seeing something different here, in my very dry climate. Humidity is low, and I am adding beer and water daily to my bin. I put them on a time lapse cam and I see the ready to pupate guys going all directions. I don't have their escape route ready yet. But really they are going full speed all directions, of course along the walls of the bin more because it is a wall. I'd propose that dryness would decrease their desire to leave.


Thu Sep 21, 2017 12:43 am
Profile Send private message
Display posts from previous:  Sort by  
Reply to topic   [ 5 posts ] 

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.