Citricola scale females
Identification tip: During spring, citricola
scales mature into females, which are mottled brown to
gray. Except for late-maturing second-instars on twigs
or leaves, the entire population is females on twigs. |
Citricola scale first instars
Identification tip: During summer, all citricola
scales are first instars. These nymphs are translucent
orange to brownish and occur on leaves, often along veins.
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Citricola scale second instars
Identification tip: Nymphs enlarge and become mottled
dark brown in late summer and fall when they begin to
move from leaves to bark, where they overwinter.
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Brown soft scale mixed instars
Identification tip: Brown soft scale is the only
soft scale on citrus with multiple generations a year which
overlap. Different-sized scales occurring together
helps to distinguish this species.
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Brown soft scale nymphs
Identification tip: Some stages resemble citricola
scale, but unlike citricola, brown soft scales are rarely
colored gray. Most of these scales have round holes left
by emerging parasites.
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Brown soft scale nymphs
Identification tip: Brown soft scale is under excellent
biological control unless natural enemies are disrupted.
Within any colony, many individual scales are usually
discolored or dark because of parasitism.
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