serious problem with many dionaea

[Chimico85]

I have a very serious problem with my dionaea, 10-15 plants are sick or dead:

this "rot" attack in middle the leafs and go up at last kill the rhizome, the problem began when i changed peat, and i have transfered the plants in my greenhouse, after 5 days some plants of one saucer begin the problem, i changed peat and transfered outside, and now almost all the plants on this saucer are sick also if they are on live sfagnum or are dead.

i not understand why, grew dionea in different types, but never saw  this sick.

i grow in 1-2cm of perlite,2-3cm of peat and perlite, 1-2cm of only peat.

i did treatments for antifungal and anti rot but are useless.

someone can help me?

Edited June 3, 2014 by Chimico85

[ada]

It sounds like the peat you used could have been contaminated with fertilizer from other composts.

This is happening more and more often as suppliers don't want to waste compost.

I have had it happen twice myself.

Anyone else any suggestions?

ada

[mantrid]

Ive seen something like this on VFTs that are too wet with no sun. But in Venice in the summer I doubt that could be the problem.

[Tuberousdrosera]

I agree with Ada looks like fertiliser, on some plants I tried out slow release pils the leaves start to go black, roots rot off and if you leave it too long the whole plant roars off.

If you catch it quick enough give a good wash and plant in fresh fertiliser free peat and the plants generally recover

[Chimico85]

it is one month that one on two day rain, maybe the problem is greenhouse on polycarbonate? but last year i not had this problem

[Chimico85]

when i transferred dionaea in another saucer with another peat or with live sphagnum but the disease continued.

i not understand because hit only one saucer on six that i have change peat

[Alexis]

The disease might only appear to continue because they still have fertiliser in their system.

Repotting won't magically make the fertiliser within the plants vanish instantly.

But you can't do really anything except repot everything and see what survives.

What is the brand of the new peat?

[Chimico85]

baltischer weisstorf

but I have repotting almost all plants with this peat.

i use rain water that levy by eaves , can rain have fertiliser? 

[Chimico85]

my neighbors have many fruit trees and before of great rain of this month have used a lot substances, my roof is high as the trees, can be when i collected first rain have a high concentration of this substances?

[lucien01700]

Hello Chimico85

Removes the perlite with peat moss or pure blond with quartz sand

lucien

[Chimico85]

it is very difficult, i made six great sphagnum bog with base only perlite, for floats on water

[ada]

It could be that only one pot of plants was affected due to fertilized compost not being mixed very well into the peat you bought.

It could have been one lump of the fertilized compost in a good bag of peat.

ada

[Chimico85]

then the problem is fertilized of peat, that created phytotoxic problem. right?

[ada]

I would say so.

These plants have evolved to live in conditions that contain very few nutrients for the roots.That's why they catch insects,to gain the nutrients.

But too many nutrients are now harmful or lethal to cp's.You can see where the first signs of rot/death have occured,right at the roots that have the most contact with the new compost you used.

ada

Edited June 4, 2014 by ada

[Chimico85]

ok, thanks of your help.

if return this problem i will change peat on pot and peat moss

[antoinemoore]

It look like you keeping the soil to wet and a build up to much dissolved minerals or chemical in the soil.