l c t a The accidental importation of plant pathogens in or on the bodies of parasitoids imported as natural enemies has been raised as a potential risk of classical biological control projects involving insects that serve as vectors of plant diseases. During quarantine evaluation of two parasitoids, Tamarixia radiata Waterston and Diaphorencyrtus aligarhensis (Shafee, Alam and Agarwal), import...

Cacopsylla pyri L. (Hemiptera: Psyllidae) je jedan od najvažnijih gospodarskih štetnika kruške. S obzirom na nove smjernice o održivoj uporabi pesticida i smanjenja rizika negativnih učinaka stalno se iznalaze nova, ekološki prihvatljiva rješenja u zaštiti bilja. Cilj ovog istraživanja bio utvrditi utjecaj biostimulatora povećanje otpornosti kruške intenzitet napada kruškine buhe. Istraživanje ...

Biological efficacy of rapeseed spray oil against twospotted spider mite (Tetranychus urticae Koch) on cucumber, against European red mite [Panonychus ulmi (Koch)] on apple, green peach aphid (Myzus persicae Sulzer) on pepper and pear psylla [Cacopsylla pyri (L.)] was evaluated in seven field and three greenhouse trials at eight localities in Serbia during 2005-2008. The efficacy of rapeseed sp...

The Asiatic citrus psyllid (Diaphorina citri Kuwayama [Hemiptera: Sternorrhyncha: Psyllidae] is a vector of huanglongbing (citrus greening), a devastating disease of citrus caused by phloem-limited bacteria. Growing guava (Psidium guajava) as an intercrop appears to be a successful means of reducing psyllid numbers within citrus orchards; however, the mechanism by which such a reduction is achi...