Spotting on leafs

[lepetitmartien]

There is also the two-spotted spider mite. very tiny. Can't see them without a magnifying glass. They are a pale yellowish-brown with two dark spots on their backs. They love Paphs, Phals and Catasinae.

Call it Brevipalpus for short.

 

[eaborne]

I would definitely increase the airflow along with treating it.

 

[Happypaphy7]

Those are not from mites, but disease spots.
You want to remove the affected leaves and spray.

One of the paphs I bought at a show from OZ was covered with them.
I only found out when I came home at night.
The plant did not do well in the long run.

 

[Trithor]

It is worth remembering that our plants (and us) live in a contaminated world.they are surrounded by a whole range of fungi and bacteria and normally do not show any effect from them. The spots, rot and other ailments occure when there is a cultural problem, imbalance or a biting insect which breaches the plants normal resistance to illness. So to correct this we need to correct the cultural problem, correct the imbalance or remove the biting insect. Most often the first indication we have of a pest (other than mountains of wooly mealy bug, or textured surfaces of scale) are the results of infection of the insect bites. In this case we need to treat not only the insect pest, but the pathogen which has gained access to the plant tissue. I point this out, because all to often the discussion is centered around treating the one or the other in isolation, while the reality is that both are involved and in need of treatment. At risk of appearing foolish, I believe that a lot of the problems we experience is because we grow lots of a specific type of plant in an artificial environment and then use artificial feeds and add to the problem by using pesticides, fungicides and other treatments and so create an environment that is very out of balance and easily capitalized as a niche environment by a pest or pathogen, much as hospitals are environments in which really nasty bugs can thrive.
First correct the imbalance (improve airflow, reintroduce effective microbes, watch and treat for insect infestations and drink more beer)

 

[SlipperFan]

Call it Brevipalpus for short.

OK

 

[Erythrone]

It is worth remembering that our plants (and us) live in a contaminated world.they are surrounded by a whole range of fungi and bacteria and normally do not show any effect from them. The spots, rot and other ailments occure when there is a cultural problem, imbalance or a biting insect which breaches the plants normal resistance to illness. So to correct this we need to correct the cultural problem, correct the imbalance or remove the biting insect. Most often the first indication we have of a pest (other than mountains of wooly mealy bug, or textured surfaces of scale) are the results of infection of the insect bites. In this case we need to treat not only the insect pest, but the pathogen which has gained access to the plant tissue. I point this out, because all to often the discussion is centered around treating the one or the other in isolation, while the reality is that both are involved and in need of treatment. At risk of appearing foolish, I believe that a lot of the problems we experience is because we grow lots of a specific type of plant in an artificial environment and then use artificial feeds and add to the problem by using pesticides, fungicides and other treatments and so create an environment that is very out of balance and easily capitalized as a niche environment by a pest or pathogen, much as hospitals are environments in which really nasty bugs can thrive.
First correct the imbalance (improve airflow, reintroduce effective microbes, watch and treat for insect infestations and drink more beer)

:clap::clap::clap:

 

[Bjorn]

It is worth remembering that our plants (and us) live in a contaminated world.they are surrounded by a whole range of fungi and bacteria and normally do not show any effect from them. The spots, rot and other ailments occure when there is a cultural problem, imbalance or a biting insect which breaches the plants normal resistance to illness. So to correct this we need to correct the cultural problem, correct the imbalance or remove the biting insect. Most often the first indication we have of a pest (other than mountains of wooly mealy bug, or textured surfaces of scale) are the results of infection of the insect bites. In this case we need to treat not only the insect pest, but the pathogen which has gained access to the plant tissue. I point this out, because all to often the discussion is centered around treating the one or the other in isolation, while the reality is that both are involved and in need of treatment. At risk of appearing foolish, I believe that a lot of the problems we experience is because we grow lots of a specific type of plant in an artificial environment and then use artificial feeds and add to the problem by using pesticides, fungicides and other treatments and so create an environment that is very out of balance and easily capitalized as a niche environment by a pest or pathogen, much as hospitals are environments in which really nasty bugs can thrive.
First correct the imbalance (improve airflow, reintroduce effective microbes, watch and treat for insect infestations and drink more beer)

About time to start with a holistic approach to the orchid growing? My experience is that if I have repeated problems with deceases, its either some very hostile pathogen(normally not) or the growing conditions are not optimal.
Sub-optimal growing conditions opens up the plants immune system to attack. A well-grown (not necessarily big and beautiful) plant is not prone to attack. So the counter-action in this case would be to spray, and if the attack repeats itself then look for your growing conditions. Is something missing? some stress? etc. While knocking down the repeated attack with proper action of course.

 

[Trithor]

I agree, every time we treat an ailment, we should at the same time try and identify the cause and the circumstances which led to it. I firmly believe (even if I don't want to admit to it) that incorrect culture is the cause of most of the ailments which we see.