Alvarez, A.E. (2007), Resistance mechanisms of Solanum species to Myzus persicae, Ph.D. thesis, Wageningen University, Wageningen, the Netherlands. The aphid Myzus persicae (Sulzer) constitute a threat to potato crops because of their efficiency to transmit viruses. Many wild Solanum species have been reported to have resistance to M. persicae. These species represent an important potential sou...

Circadian patterns of activity are considered ubiquitous and adaptive, and are often invoked as a mechanism for temporal niche partitioning. Yet, comparisons of rhythmic behavior in related animal species are uncommon. This is particularly true of Lepidoptera (butterflies and moths), in which studies of whole-animal patterns of behavior are far outweighed by examinations of tissue-specific mole...

Polyphagous aphid pests cause considerable economic damage to crop plants, primarily through the depletion of photoassimilates and transfer of viruses. The potato aphid (Macrosiphum euphorbiae) is a notable pest of solanaceous crops, however, the molecular mechanisms that underpin the ability to colonize these hosts are unknown. It has recently been demonstrated that like other aphid species, M...

Cytogenetic and molecular investigations on the holocentric chromosomes of the aphid Macrosiphum euphorbiae (Thomas, 1878)have been carried out using silver staining and C-banding (followed by chromomycin A3 and DAPI staining) in order to improve our knowledge about the structure of aphid chromosomes. The C-banding pattern is peculiar since only the two X chromosomes and a single pair of autoso...

Macrolophus pygmaeus Rambur (Hemiptera: Miridae) is a generalist predatory mirid widely used in augmentative biological control of various insect pests in greenhouse tomato production in Europe, including the invasive tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae). However, its biocontrol efficacy often relies on the presence of alternative prey. The present study aimed at...

Se aportan registros de Heterocera interés para España peninsular y Melilla, algunos ellos por primera vez, como Pammene gallicolana (Lienig & Zeller, 1846), Epinotia cruciana (Linnaeus, 1761), Elachista pollutella Duponchel, 1842 [1843] Ceuta Melilla a Streblote panda Hübner, [1820] 1816, Laothoe austanti (Staudinger, 1877), Hyles tithymali mauretanica 1871), Hippotion celerio 1758), Cymba...

Podosphaera (Sphaerotheca) euphorbiae on Euphorbia epithymoides (= E. polychroma, cushion spurge) is reported for the first time in North America. Neoerysiphe (Erysiphe) galeopsidis on Lamium amplexicaule (henbit), Blumeria (Erysiphe) graminis on Festuca idahoenis (Idaho fescue), Taphrina johansonii on Populus tremuloides (trembling aspen), and Taphrina occidentalis on Alnus rubra (red alder) a...

A rust fungi species, Uromyces euphorbiae Cooke & Peck (Pucciniaceae) on Euphorbia cheiradenia Boiss. Hohen. (Euphorbiaceae) is reported for the first time from Malatya Turkey and also as a new host species fungi. The morphological microscopical features of this are described with figures.

Abstract Dropping behavior is an effective antipredator defense utilized by many insects including aphids, which drop from plants to lower plant parts or underlying substrates avoid attack predatory invertebrates. While research commonly focusses on triggers of dropping, less attention given what happens prey individuals following escape drops. In this study, the duration tonic immobility, reco...