Identifying Pests and Diseases of Orchids

There are a couple of things that you can do to keep orchids free from any pests. The first thing that you need to do is identify any signs of damage or destruction. If you do see signs of damage, you probably have a disease, fungus or pest infestation as suggested by expert pest controllers, Pest Control Perth.


Mites are very small, in fact, you could say that they’re almost microscopic. You won’t usually know that they are there until they have caused a huge amount of damage to your plants. If you look at the top of your leaf then you’ll find that it looks slightly silver and this is especially the case if you look on the underside of the leaf. This is where the mites have killed the cells on the surface layer. On the top of the leaf you may also find yellow spots that soon turn brown. The only way to get rid of mites is to use a pesticide liberally on all of your orchid plants. Visit this site to reach out to a pest control specialist if you want more information about mites and pesticides.


Caterpillars are moths or butterflies in their immature stage. They can do serious damage to your orchids and you can see the damage that they have done by looking out for holes in your plants and even for the caterpillars themselves. Caterpillars are relatively easy to remove, and in most cases you can pick them up and move them to another part of the garden or even out of the garden altogether. They can cause serious damage in a matter of hours however, so acting fast is crucial if you want your orchids to survive this type of bug.


Snails and Slugs

Snails and slugs can inflict a huge amount of damage onto your orchids. They wait until night and they can kill off your plants in a very short space of time. If you have your orchids in a greenhouse then your pests will be in the vicinity of the growing area. They tend to eat the flowers and the roots, but if these are inaccessible then they will eat anything that they can find. Slugs will leave huge holes in your plants, and silvery trails around the soil. The only way to eradicate them is to lay down egg shells and salt to deter them. Slug pellets also work well.

Heat Stress

Heat stress is a condition that occurs in orchids when there is an imbalance in transpiration. This helps the moisture that is in the plant to evaporate through the plant tissue. The plant will eventually become unable to do this and this will dehydrate it. The plants roots will also start to rot and this makes it very hard for the plant itself to recover. You will need to control the humidity in your greenhouse if you see your plant dying uncontrollably, as well as monitoring how much you are watering as to not overload the plant. By reducing the heat temperature and by closely monitoring the water you apply to the soil, there is a high chance that your plant will make a sure, but slow recovery.

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