Rice leafhoppers and Planthoppers

Описание: Several species of leafhoppers and
planthoppers are serious pests of rice
worldwide (Table 4). In many areas,
they frequently occur in numbers
large enough to cause complete
drying of the crop, but even sparse
populations reduce rice yields. In
addition to direct feeding damage,
leafhoppers and planthoppers are
vectors of most of the currently
known rice virus diseases. The more
damaging species are green
leafhoppers Nephotettix spp., the
zigzag leafhopper Recilia dorsalis
(Motschulsky), the brown
planthopper Nilaparvata lugens (Stål),
the small brown planthopper
Laodelphax striatellus (Fallen), the
whitebacked planthopper Sogatella
furcifera (Horváth), and the rice
delphacid Tagosodes (=Sogatodes)
orizicolus (Muir) (Fig. 9a-i). The first
five species occur in Asia. Tagosodes
orizicolus is found in the southern
USA and in the north central region
of South America. Among several
Nephotettix species, three are
important. Nephotettix cincticeps
(Uhler) is distributed in temperate
areas. Nephotettix virescens (Distant)
and Nephotettix nigropictus (=apicalis)
(Stål) are distributed in temperate
and tropical Asia. Nephotettix
nigropictus is mainly distributed in
tropical Asian rice-growing areas.
planthoppers do not cause serious
loss, probably because lowland rice is
not widely planted. The only reported
hopperburn in Nigeria was