Big bud of floral parts:
- Tomato big bud

Symptoms: leaves are small, distorted, and yellowish-green. Buds are enlarged. Characteristic of tomato big-bud phytoplasma, a member of the aster yellows group.
Green callus-like growth on upper and lower surface:
- Oedema

Symptoms: green callus-like growth on both the upper and lower leaf surfaces. Tissue may tear as the leaf matures.
Leafroll without yellowing or rugosity:
- Physiological leafroll

Symptoms: pronounced leafroll of foliage over most of the plant.
More information/prepared by:
- For more information, please contact:
Meg McGrath – mtm3@cornell.edu & Chris Smart – cds14@cornell.edu - Originally prepared for Vegetable MD Online by Thomas A. Zitter.