Vanda Help!! Leafs falling off.

[kaarthiik]

Hi,
My Vanda, was doing fine from last few months, until suddenly, it started dropping leafs, one for every 2 days. I am worried.

I inspected the plant, i do not find any rot/spots. I lost 4 leafs this week, and the new leaf growth is almost 0.

I use a orchid fertilizer weakly weekly. And from last week I did not used any fertilizer

I water with sprayer every day twice in morning giving 2 hours gap.

Pics are shown here. All other vandas are doing good, but the growth of others are slow.