Title

Tungro

Keywords

leafhopper, disease, green leafhopper

Abstract

Tungro is a rice disease (virus) that mainly affects plants

during vegetative growth and causes severe stunting and

a reduction in the number of tillers. Both the leaf sheath

and leaf blade are shortened and affected leaves are often

light yellow to orange-yellow. Young leaves are often

mottled or have pale green to white stripes of different

lengths running parallel to the veins. Symptoms start at the

tips of the older leaves. Leaf yellowing is less when older

plants are infected. Normally patches of plants are affected

across the field. Two species of green leafhopper (GLH)

(Nephotettix malayanus and Nephotettix virescens) are the

primary insects that cause the spread of the virus

Author

G Jahn, I. Choi and MA Bell

Date

March 2004