Plants under herbivore attack are able to initiate indirect defense by synthesizing and releasing complex blends of volatiles that attract natural enemies of the herbivore. However, little is known about how plants respond to infestation by multiple herbivores, particularly if these belong to different feeding guilds. Here, we report the interference by a phloem-feeding insect, the whitefly Bem...

toxicity and oviposition deterrent activities of ethereal extracts of exocarp and kernel of ginkgo biloba seed were evaluated on various life stages of two spotted spider mite tetranychus urticae. petroleum ether was used for extraction. bioassay was conducted using three replicates for testing five concentrations 35, 45, 60, 75 and 100 g/l of pure extracts. lc50 was measured by pri-probit soft...

BACKGROUND: Chemical control of spider mites and thrips in everbearer strawberry is difficult as few efficient chemicals are available and residues represent a risk. In the north the success of biocontrol of mites and thrips in open fields compared with tunnels needs to be evaluated. OBJECTIVES: To investigate the need for control of spider mites and thrips and evaluate the effectiveness of bio...

The two-spotted spider mite, Tetranychus urticae Koch, is a constant threat to sustainable production of numerous economically important crops globally. Management T. heavily reliant on the application synthetic acaricides. However, has rapidly developed resistance most acaricides available for its control due very broad host plant range, extremely short lifecycle, high fecundity, arrhenotokous...

considering the deleterious effects of chemical pesticides used in agriculture including cotton cultivation, the search about integrated control strategies for important cotton diseases, verticillium wilt and rhizoctonia seedling damping-off is clearly obvious. in this present study, the researcher investigated the effectiveness of the integration of two strategies, biological control (using an...

BACKGROUND Prenatal or embryonic learning, behavioral change following experience made prior to birth, may have significant consequences for postnatal foraging behavior in a wide variety of animals, including mammals, birds, fish, amphibians, and molluscs. However, prenatal learning has not been previously shown in arthropods such as insects, spiders and mites. METHODOLOGY/PRINCIPAL FINDINGS ...

1049-9644/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.biocontrol.2010.07.006 * Corresponding author. Present Address: Agricultur Cyprus. Fax: +357 22316770. E-mail address: [email protected] (M We studied the effects of temperatures from 10 to 40 C on development of the Pacific spider mite, Tetranychus pacificus (McGregor), and the Willamette spider mite, Eotetranychus w...

Tetranychus urticae (Acari: Tetranychidae) is a phytophagous mite that forms colonies of several thousand individuals. Like spiders, every individual produces abundant silk strands and is able to construct a common web for the entire colony. Despite the importance of this silk for the biology of this worldwide species, only one previous study suggested how to visualize it. To analyze the web st...