OverdoseLiving said:

man that sucks....

BTW is there any contam that looks like chalky/cheesey white mycellium?

Or is that just a diff kind of growth?

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Lots of other molds/fungus have white mycelium.

Some bacteria will produce a whitish goo too.

Quote:

*I've been saying that for years. My petri dish studies a few years ago showed that cubensis reaches peak linear growth between 75F and 80F, then is flat until 83F, where it starts to slow down. Mycelium at 86F is growing at about 2/3 the speed of mycelium at 80F. In addition, the higher temps tend to stimulate thermophic molds and bacteria. There's LOT'S of good information in TMC, but that 86F figure is one of the errors. When I did it there were ten petri dishes colonizing at each temperature, in separate containers. I went through well over 200 petri dishes of mycelium for no other reason than to determine the temperature that stimulates fastest growth, other factors being equal. That was a far more controlled study than the one reported over 20 years ago. If someone else wants to repeat the experiment, go for it. I consider the matter closed. Paul doesn't even repeat that 86F figure, which someone else sent him. Bottom line was the tubs that had petri dishes between 75F and 81F showed no difference in growth. Below 75F, and above 81F growth slowed down, with a rapid drop in colonization speed below 70F and above 83F. At 86F, a petri dish would be 2/3 colonized, while its sister at 75F would be fully colonized. Rate of growth at 86F was exactly the same as rate of growth at 72F, with fastest growth as said, occurring between 75F and 81F. Note that these tests were for linear growth in the two-dimensional plane of a petri dish. In three-dimensional space such as in grain jars or bulk substrates, the effects of thermogenesis need to be considered, so ambient temps should be lowered slightly to compensate.

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