Psyllaephagus sp. (Hymenoptera: Encyrtidae) is a newly recognized and important parasitoid of Cacopsylla chinensis (Yang Li) (Hemiptera: Psyllidae), pest pear orchards. Its parasitism potential rearing were studied in the laboratory. The studies showed that most suitable hosts fourth- fifth-instar nymphs psyllids (C. chinensis). development duration females males was 15.25 ± 0.37 13.57 0.27 day...

The species of pear sucker, also called psylla or psyllid, which are destructive insects belonging to the genus Cacopsylla (Hemiptera: Psyllidae) cause substantial damage tree plantations. Two consecutive years research were conducted on population structure and biological cycle in a small, elderly, unmaintained orchard northern Romania. Of two identified (C. pyri L. C. pyricola Forster), domin...

Pear psylla, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), is a pest of pears, Pyrus L. (Rosaceae), throughout North America and western Europe. Previous studies in our laboratory showed that males of the overwintering form (winter morphotype) were attracted to volatile chemicals from pear shoots infested with post-diapause females. The current study shows that males of the summer morph...

Cacopsylla pyri (Linnaeus, 1758) is the most significant and widespread pear pest. It attacks only, causing direct indirect damages. This study was conducted in order to evaluate efficacy of insecticide spinetoram control C. pyri. The experiment set up according EPPO methods, at locality Kula (Republic Serbia) a orchard (Williams variety). Spinetoram (250 g/kg a.i., WG) foliar applied amount 0....

Abstract Anthocoris nemoralis is the dominant predator of pear sucker ( Cacopsylla pyri ) in UK. migrates into orchards spring or introduced as a biocontrol agent, reaching peak population levels July-August, contributing to effective control summer populations. However, due temperature dependent development and metabolism there are concerns that C. populations feeding rates may increase changi...