big leaf phal yellowing leaves and looses buds, help

[behtash]

hi

recently i got a big leaf phal as a birthday present (last week) at first i noticed it had 2 down leaves yellow with some black small spots and i thought its normal for them to get yellow and fall, but 2 days ago i saw the leaves are yellowing with black spots (5 out of 8 )
i have several orchids and i put the environment in a good temp / humidity / light and have several other orchids but never saw such thing
it also looses buds, at first all of the fresh and stiff! now i see some of them are getting red and falling down afterward, i upload some pics of the plant

can anyone help me as i care for this plant and the person who gave it to me

[SlipperGirl]

What are its roots like?

[behtash]

its in a transparent container, the roots look normal green and healthy, but the roots at surface got dry and rotten i guess, should i take pics put here?

[SlipperGirl]

Originally Posted by behtash

its in a transparent container, the roots look normal green and healthy, but the roots at surface got dry and rotten i guess, should i take pics put here?

If you want pics could help us.

---------- Post added at 02:11 PM ---------- Previous post was at 02:10 PM ----------

It sounds like it could be fungal rot

[behtash]

pictures of roots

if it is fungal how can i treat it, the plant is going to die?
(i forgot to add i didnt use fertilizer for my plants so far )

[SlipperGirl]

Originally Posted by behtash

pictures of roots

if it is fungal how can i treat it, the plant is going to die?
(i forgot to add i didnt use fertilizer for my plants so far )

If it is fungal rot you need to cut the affected areas off with a sterilized cutting tool then put some fungicide on it

[behtash]

the areas you mean leaves and the roots which are affected? and tell me please about fungicide,

[SlipperGirl]

Originally Posted by behtash

the areas you mean leaves and the roots which are affected? and tell me please about fungicide,

sorry I was on my phone so it was hard to type. but yes the leaves and the roots need to be cut off but mostly the leaves the roots dont look to bad other then some of the top ones so if you want to cut off the top ones you can, if it was me I would cut the bad roots off.

Some recommended fungicides are Natriphene, Physan20, Physan27, but I would put a little bit of cinnamon on the cut spots instead of a fungicide

Also I would wait for someone else to tell you that it it fungal rot before you cut the leaves off. Just for a second opinion

[behtash]

thank you so much for helping, so it means i have to repot after cutting the roots as well, is it correct?

[SlipperGirl]

Originally Posted by behtash

thank you so much for helping, so it means i have to repot after cutting the roots as well, is it correct?

Yes I would repot it but again I would get a second opinion.

Remember only cut the bad roots off and put just a little bit of cinnamon on the end of the cut root and on the cut leaves.