Plant diseases or blights in a hydroponics garden are much less
frequent than in a dirt garden because there is no dirt to grow
bacteria. Not to mention the fact that many plant diseases travel to
the plant from the surrounding soil. Plant disease cannot occur
without a host plant, a pathogen and favorable environmental
Plants can be more susceptible to disease if
weakened by environmental conditions such as too much shade, high
humidity and crowded conditions. They are also more susceptible when
weakened by nutrient deficiency or toxicity (too many nutrients) and
There will always be some trouble with disease,
just watch for it and take care of it immediately. Unfortunately
many disease cures involve the use of harsh chemicals which you
really do not want on your plants. A hydroponics garden can easily
collect such chemicals in the nutrient solution with indiscriminant
use and get into the plant cells - not something you want.
What to do About Them
Try some less harsh
solution first. My favorite all-purpose cure is to mix together
water, baking soda, lemon juice and a very little dish detergent. I
put this in a spray bottle and mist the affected parts of the plant.
Sometimes it works like a charm and sometimes not. If you mix and
use this recipe, make sure you cover all areas open to your nutrient
solution or the dish detergent will get into it causing soap
Fungus causing whitish spots on the underside of the leaves.
Eventually the leaves shrivel and die. Thrives in high humidity.
Treatment: Spray with
homemade all purpose cure described earlier.
Fungus rots a plants roots.
Cut away rotted
root portions and spray with a fungicide.
Dark brown spots on leaves, stems and plant fruit seriously
weakening the plant.
Treatment: Treat with harsh chemicals
Sooty black or grayish white leaf growth.
Gently wash leaves
and scrape off mold.
Fungus caused by over watering where leaves
become marked with dark smears and shrivel. Hardly ever occurs in
Spray with fungicide and remove damaged leaves.
A fungus affecting small
plants where stems meet soil causing them to fall over and die.
diseased sections. If it has affected a significant number of
plants, replant in new soil and clean containers.
Grayish white, fuzzy leaf growth caused by
inadequate ventilation. Not common in hydroponics gardens.
ventilation and remove affected
Slightly raised, powdery
red pustules on the
underside of the leaves causing them to turn yellow then brown and
die. Helped along by high humidity. Very contagious.
Apply harsh chemicals
zineb or maneb.
Roots turn into a mass of club
shaped tubers. Plants may become stunted.
Dust with fungicide
and Stem Rot
Fungus causes plant to turn pulpy and rot.
away rotted plant
portions and spray with
Learn More From Us
To learn more about Plant Diseases
come in and talk to our knowledgeable staff and where you'll find more
information. We can provide you with the solutions to rid
yourself of these diseases and prevent future ones. Remember, whether
you are our customer or a customer of one of our competitors, we are
always here to help you.
Information You Might Need to Know
Why Indoor Gardening
How Indoor Gardening Works
How Plants Work
What to Grow
Identify Plant Deficiencies
Identify Plant Diseases
Herb Growing Times
Growing and Lighting Glossary
The products listed below are quick finds within our online
These products may also be found in our retail
facility. Should you not find what you are looking for please call us
and we will check our entire inventory.
We carry all of the major brands of grow bulbs and great prices. Please
check our supply and prices in or online store. Please call with any
We can recommend the proper ballasts based on your requirements. See our
complete inventory and pricing. Please call with any questions.
Call us today to find out what specials we are running on complete
lighting systems. This is a great way to save money . Check our our
complete line of ballasts in our online store.
Running low on nutrients. If you want special bulk pricing please call
us and we will set a special price. Visit our online store to view our
current nutrient supply.
Visit Our Online Store
Now you can shop twenty-four hours a day at our online facility. If you
are local, you can still order and we will ship it to you or have it
ready to go for pickup. Another way we are trying to help you.
For recent recent events and news at Hydro-Ponics.