WebCacopsylla pyricola Family: Psyllidae Cacopsylla is a large and difficult genus with genal cones and a pterostigma; many species cannot be reliably identified without examining the genitalia. One of a few species of Psylla …

The biology of the Psylloidea (Homoptera): a review

WebPear psylla (Cacopsylla pyri L.) occurs regularly and abundantly in Serbian pear orchards intensively treated with insecticides.Overwintering females begin to lay eggs as early as in mid-February, and the period of oviposition usually extends into late April. WebUnlike nymphs, adults of C. pyri (similarly to those of the congener species C. pyricola) are responsible for the transmission of the phytop lasma of pear decline . The phytoplasma is acquired by the psylla upon f eeding on an infected plant and transmitted to an healthy one by salivation during feeding on phloem (Carraro et al., 1998). gibsons florist bc

Cacopsylla pyri (PSYLPI)[Overview] EPPO Global Database

http://treefruit.wsu.edu/article/good-vibrations-a-potential-ipm-strategy-for-pear-psylla-cacopsylla-pyricola/ WebPear psylla is a very small sap-feeding insect and is considered the most serious insect pest of pear in the United States. Serious infestations can stunt, defoliate, and even kill trees. Psylla feeding produces copious amounts of sticky honeydew that can cause fruit russeting. All commercial pear varieties are attacked, although smooth skinned ... Psylla pyri, commonly known as the pear psylla or pear psyllid, is an insect in the family Psyllidae. Originating in Europe and Asia, it has spread to North America. It is a pest of pear trees, sucking the sap, damaging the foliage, flowers and fruit and diminishing the crop. See more The adult Psylla pyri is between 2 and 3 mm (0.08 and 0.12 in) long. The colour is variable, ranging between orange-red and black, the thorax having whitish longitudinal stripes on its upper surface. The wings are … See more The species is found in Europe, including Scandinavia, and in Asia. In Britain it used to be very rare, with only one record before 1969, but since then it has become much more common, especially in the southeast of the country. It was introduced accidentally into … See more Psylla pyri damages pear trees by sucking the plant sap; leaves are yellowed and distorted and flower buds and fruitlets are shed. The excess See more This psylla overwinters as an adult, concealing itself in a crack in the bark. In spring it leaves diapause, and the female starts laying eggs … See more Research in an untreated orchard in Turkey found 32 predator and three parasitoid species of insect associated with this psylla. The predators included the predatory bugs See more frugoweather