Biology Reference
In-Depth Information
38
39
38
Elaeagnus sucker (
Cacopsylla fulguralis
).
39
Nymphs of hawthorn sucker (
Cacopsylla melanoneura
)
on
Crataegus
.
40
41
40
Alder sucker (
Psylla alni
).
41
Nymph of alder sucker (
Psylla alni
).
42
42
Wax-coated nymphs of alder sucker (
Psylla alni
) on
Alnus
.
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