Monitoring of pear psylla (Cacopsylla pyricola (Förster), Hemiptera: Psyllidae) prior to spring bud break could aid in predicting the size of subsequent spring populations and lead to improved proactive management decisions. Yellow traps are commonly used to monitor hemipteran pests including pear psylla, but very little is known regarding seasonal changes in attractiveness of yellow traps or r...

Synthetic sugar esters are a relatively new class of insecticidal compounds that are produced by reacting sugars with fatty acids. The objective of this research was to determine how systematic alterations in sugar or fatty acid components of sugar ester compounds influenced their insecticidal properties. Sucrose octanoate, sorbitol octanoate, sorbitol decanoate, sorbitol caproate, xylitol octa...

The type specimens of Tenthredo sensu lato deposited in the Hungarian Natural History Museum (Budapest) are reviewed. The following synonyms are recognized and discussed: Rhogogastera aenescens Mocsáry, 1909, syn. nov. of Tenthredo (Temuledo) finschi finschi W.F. Kirby, 1882; Macrophya prasinipes Konow, 1891, syn. nov. of Macrophya caucasica (Mocsáry, 1880); Tenthredo concinnoides Malaise, 1945...

In this paper the validation and implementation of a Real-time PCR protocol based on ribosomal protein genes has been carried out for sensitive and specific quantification of 'Candidatus (Ca.) Phytoplasma mali' (apple proliferation phytoplasma, APP) in insects. The method combines the use of EvaGreen(®) dye as chemistry detection system and the specific primer pair rpAP15f-mod/rpAP15r3, which a...

Pear psylla, Cacopsylla pyricola (Foerster) (Homoptera: Psyllidae), is one of the key insect pests in North American pear production. In some growing areas, more than 50% of dollars spent to control arthropod pests in commercial pear are directed specifically at controlling this species. Control measures require accurate and timely information about dispersal, onset of egg-laying in spring, den...