tetranychus urticae koch is an important and destructive pest of crops, fruits and ornamental plants in worldwide. the high fecundity of t. urticae and its abruptly life span as well as the extensive application of acaricides for keeping t. urticae damages below economic injury level, caused to resistance to acaricides and control failures. in this research the fumigant activity of essential oi...

Plant quality for herbivores is usually evaluated with molecular and physiological techniques herbivore performance bioassays. These assays are done either on intact plants or detached plant parts, such as leaves, leaflets, leaf discs. It thus far unclear how experiments parts compare. may change in because of the mechanical wounding inflicted, which induce defences. Moreover, defences often sy...

Las especies de la familia Tetranychidae exhiben una amplia plasticidad fenotípica como respuesta a las variaciones ambientales, lo cual podría conducir identificaciones erróneas dada similitud morfológica entre algunas especies. En el presente trabajo se evaluaron quetotáxicas poblaciones Tetranychus urticae Koch y Eotetranychus lewisi (McGregor) recolectadas en diferentes plantas hospedantes ...

The contact toxicity activity of an essential oil extracted from Acorus calamus (L.) (Acoraceae) was evaluated against the phytophagous spider mites Tetranychus urticae Koch and macfarlanei Baker & Pritchard (Acari: Tetranychidae) predatory mite Amblyseius longispinosus (Evans) Phytoseiidae). Adult mortality 24 h following application 5% (v/v) concentration exceeded 90% for T. macfarlanei. Appl...

Background & Aim: Tetranychus urticae Koch is one of the most important pests of crops, ornamental and greenhouse plants in the world and, can damage to 900 plant species. Resistances to pesticides and acaricides have guided researches to introduce new methods to control T. urticae. Botanical pesticides are an important group of natural productions that are usually safer than ...