Agriculture Reference
In-Depth Information
(b)
(a)
(c)
(d)
Figure 18.15
(a) Adult glasshouse whitefl y and pupa
(courtesy of Bioline Ltd); (b) cabbage whitefl y; (c) bud
blast; (d) capsid damage on apple; (e) capsid damage
on a leaf; note the holes caused by distorted leaf
growth
18
(e)
Tobacco whitefly (
Bemisia tabaci
)
may be recognized by the more vertical ('tent-like')
way it holds its wings, revealing its light yellow-
coloured body. The female, unlike glasshouse
whitefly, lays eggs in a random fashion. It may
transmit viruses such as
tomato yellow leaf-curl
virus
. This pest species is not controlled by the
This is a different species from the common
glasshouse whitefly, and has become quite common
in Britain and Ireland since its introduction in the
1980s. It is similar in size (about 1 mm in length) but