Phosphorus deficiency usually shows up first at the bottom of the plant (on symptoms:
30+ Potato Leaves Curling. If the leaves on your vegetable plants are twisted or curled, the problem could be environmental geminiviruses spread to tomatoes and other plants exclusively by the sweet potato or silverleaf. More on the upper part.
Hawaii Horticulture Grow Your Own Sweet Potatoes from 4.bp.blogspot.com
Dear dan, my plant's leaves are curling upwards from the middle like a taco shell. The potato plant does have roots, stems, and leaves though, like almost all other plants. And also clean any garden tools that come into contact with the plants using rubbing alcohol on a cotton ball.
What you should worry about and what you don't need to worry about.
Dear dan, my plant's leaves are curling upwards from the middle like a taco shell. Potato plants grown from true seed were naturally infected with the solanum apical leaf curling virus (salcv) at the high jungle site near san ramon, peru. The tomato leaf curl virus is a yellowing and upward curling of leaves on a tomato plant. Detection of a geminivirus infecting sweet potato in the united states.
