Curly top is a viral disease that affects several crops. This disease causes plants to become smaller in size, have shriveled petals and leaves, and square measure twisted and force out of form. they're usually caused by curtoviruses (genus Curtovirus), members of the virus family Geminiviridae.
Leaves of troubled plants square measure dwarfed, crinkled, rolled inward, and cupped upward. Veins on the bottom of leaves sometimes have a purple discoloration, could also be cracked, and infrequently turn out swellings or spine-like outgrowths. Roots square measure inferior and should exhibit a proliferation of secondary rootlets. bast tissues become death and seem as dark rings once viewed in cross section.
If you've got a tomato wilt in your garden, it's going to not be from the warmth or an absence of water. There’s a comparatively common virus sickness of tomatoes, peppers and beans that mimics symptoms of wetness stress. It’s known as curly high, and because the name implies, one amongst the symptoms is curling leaves.