I am new to the forum and Im sure these questions come up constantly, so I apologize in advance. Ive tried to research what might be going on, and I am thinking its either whiteflies, a fungal infection, or both. The first picture is of how the these plants looked about a week ago, and as you can see they appear healthy. The issues that you see in the other pictures have come on swiftly and have resulted in both leaf and blossom drop. I believe Ive seen a few whiteflies on the plants but have been regularly applying Neem Oil Extract at 4 tbsp per gallon of water every 3 or so days since the issues arose. Earlier on when the plants were smaller (2 months ago or so) I had an aphid infestation which was all cleared up prior to this, also using neem oil.
Any ideas on whats going on? Am I applying too much neem oil? Are the plants even salvageable? Lastly, I am in Phoenix and the plants get sun from about 6 am - 1:30 pm daily. The growing medium is a MiracleGro raised bed soil variety and Ive scaled back watering due to the water retention habit of the soil and the unusually cool spring we have had. Thanks in advance!
Edited by YourPalSal, 28 May 2019 - 09:12 PM.