Answers
The fact that the yellowing seems to be spreading along the leaf veins is indicative of a nutrient deficiency. Possibly phosphorous, in which case the discolored areas will spread and likely purple- or red-brown in color. You should be able to correct the deficiency with a balanced fertilizer if you have not already done so.
Posted
by: Lindsay McMenemy
(4 points)
Posted: May 12, 2015
This may be a viral infection in the plant. I noticed some yellowing (chlorosis) in areas not near the main vein. Also, a nutrient deficiency will often affect leaves more uniformly than this. Removal of the affected plant(s) is the recommended treatment. In the future, spray insecticides to manage insects that transmit the pathogen as per label instructions and do not let insect (aphid, leaf hoppers, sharpshooters, etc) populations build up. Also, dip any equipment (pruning shears, etc) in milk or soapy solution between cuts, making certain to do so between plants. This is done to not accidentally transmit the virus, just like you would not use the same surgical scalpel on two people without disinfecting it between the two.
Best.
Best.
Posted
by: Kimberly Cochran
(1 point)
Posted: June 17, 2015
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