Bcentini10
Newly Registered
Posts: 1
Joined: Tue Dec 08, 2020 12:30 pm

Hydroponic peas issue

This is my first year growing vegetables hydroponically. I chose to grow English peas along with a few other veggies. Unfortunately I’ve noticed that some of my pea plants have dried up bottom leaves with white spots. These leaves aren’t the cotyledon leaves. I’m using standard doses of General Hydroponics nutrients at 6.5 tsp in 15 gallons of water. I’m also using 6 tsp. of 35% Hydrogen Peroxide diluted for oxygen supplementation and sanitization. I’m worried that this could be a result of bacteria, or a result of the H2O2. I was told using the hydrogen peroxide will be safe and beneficial for them as long as it’s dosed correctly. Any suggestions to fix this? I’ve attached photos below.
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imafan26
Mod
Posts: 13962
Joined: Tue Jan 01, 2013 8:32 am
Location: Hawaii, zone 12a 587 ft elev.

I am not sure this is a mix problem. The first pictures look more like thrip damage or maybe some other sucking pest. It is a problem with hydroponic systems because the plants are so close together and they are difficult to treat if any pest or disease takes hold. Sanitation and a closed environment (hoop house, netting) is the only way to get ahead of this.

The leaves look too dark green, so it looks like it did not get enough light either. Stressed plants will be the first to be attacked.



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