Only the oldest leaves of severly damaged plants show chlorosis. Necrosis appears as irregular sunken necrotic spots which may be veinal, interveinal, or adjacent to veins. Young leaflets sometimes show small black interveinal necrotic spots. Chlorosis general, so that veins do not remain green. Plants are often spindly .
Veins become bright red.
Veins are yellow or possibly somewhat pink. Petioles and petiolules do not show twisting or vertical disposition . . . . . Oldest leaves not most chlorotic. Chlorosis, when present, appears as interveinal mottling on recently matured leaves. Small black necrotic dots appear on young or recently mature leaves . . . . .