Damage. This pest, a distant relative of the aphid, spoils the appearance of glasshouse crops, particularly orchids, Coleus species, cacti and Solanum species. All of the stages except the egg suck phloem juices by means of a tubular mouthpart (stylet), and when this pest is present in dense masses it produces honey dew and may cause leaf drop (see Figure 14.11).
Life cycle. Being a tropical species, it develops most quickly in high temperatures and humidities, and at 30°C completes a life cycle within about 22 days. The adult measures about 3 mm in length and produces fine waxy threads.
A recently reported related problem on beech has been the woolly beech aphid (Phyllapis fagi).
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