The temporal development of biological control of arthropod pests in perennial cropping systems is largely unreported. In this study, the development of biological control of twospotted spider mite, Tetranychus urticae Koch, and hop aphid, Phorodon humuli (Schrank), in a new planting of hop in Oregon is described over a period of 9 yr (2005-2013). Both the abundance and diversity of natural ene...

Amaç: Bu çal??ma, 2016-2017 y?llar?nda ??rnak ili Cizre ve Silopi ilçelerinde pamuk alanlar?ndaki zararl? lepidopter türlerini, önemli türlerin popülasyon geli?imlerini, yo?unluklar?n? do?al dü?manlar?n? belirlemek için yürütülmü?tür.Yöntem Bulgular: ekim alanlar?nda yürütülen çal??mada gözle kontrol yöntemi, ???k tuza?? feromon yöntemleri kullan?lm??t?r. Heliotis armigera Earias insulana’n?n ç...

The intramolecular Pd(II)-catalysed carbonylation of aminoalkenitol was used as a key step in the short racemic syntheses of the ladybird beetle alkaloids calvine and epicalvine. The title compounds have been prepared in 26% overall yield over four steps starting from hexanal and pentenyl bromide. 2007 Elsevier Ltd. All rights reserved. (+)-Calvine 1 and (+)-2-epicalvine 2 are bicyclic piperidi...

The multicolored Asian ladybeetle, Harmonia axyridis Pallas (Coleoptera: Coccinellidae), was introduced into Western Europe in the late 1990s. Since the late 2000s, this species has been commonly considered one of the most abundant aphid predators in most Western European countries. In spite of the large amount of research on H. axyridis, information concerning its relative abundance in agroeco...

The cost-reliability of five sampling methods (visual search, drop cloth, beat bucket, shake bucket, and sweep net) was determined for four groups of predatory arthropods on cotton plants in Texas. The beat bucket sample method was the most cost-reliable sampling method for Orius adults, and the beat bucket and drop cloth were the most cost-reliable methods for Orius nymphs. The drop cloth and ...

BACKGROUND Flowers are admirable in scenic good looks and artistic beautification. These are also playing necessary roles in therapeutic preparations. Aphid is an important sucking pest of various flowers in ornamental territories and it is generally controlled by predators, so it was necessary to evaluate which aphid species affect the predator more or less. MATERIALS AND METHODS Biocontrol ...