|
Plant viruses prevent chlorophyll from forming in the leaves, so the foliage turns yellow or mottled. Other virus symptoms include leaf distortion, stunted growth and plant dieback.
http://www.ehow.com/facts_7871805_turns-leaves-yel...
|
|
Green leaves turn yellow in the fall because photosynthesis has ceased. Photosynthesis produces chlorophyll which is what gives leaves their green color. Once the chlorophyll is no
http://answers.ask.com/Home/Gardening/why_do_green...
|
|
Yellow leaves can mean different things for different plants. Sometimes, it is just the leaves turning yellow in fall. However, yellowing of leaves can also mean too much water, or
http://answers.ask.com/Home/Gardening/why_are_my_p...
|