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...

Three closely related species of mites of the genus Cheletophyes were collected from large African carpenter bees: C. venator (Vitzthum) is associated with Xylocopa nigrita ; C. torridae sp. nov. and C. mbomba sp. nov. are associated with Xylocopa torrida . Ranges of 21 morphometric variables in C. venator and putative C. torridae are overlapping. However, a large gap between the two groups was...

Clavaria species with dark basidiomata occurring in Europe were analysed using morphological and molecular methods. Morphological analyses revealed four groups containing seven Clavaria species with dark basidiomata. Phylogenetic analysis of the LSU nrDNA region confirmed the separate positions of all seven Clavaria species within the genus. All sequences were grouped in four well-supported cla...

Fourteen species (twelve adult and two larval) of nematodes belonging to the Ascaridoidea, Camallanoidea, Cosmocercoidea, Habronematoidea, Oxyuroidea, Seuratoidea and Trichinelloidea were collected from fishes in the Sudan (River Nile and Atbara Dam Lake), whereas only four species (one adult and three larval) of the Ascaridoidea, Camallanoidea, Dioctophymatoidea and Trichinelloideafrom fishes ...

Maladaptive hybridization is hypothesized to be an important force driving the evolution of reproductive isolation between closely related species. Because the magnitude and direction of selection can vary across a life cycle, an accurate understanding of the ubiquity of reinforcement requires fitness to be estimated across the life cycle, but the literature is surprisingly depauperate of such ...