Natural enemies of cypress tree mealybug planococcus vovae (nasonov)and their parasitoids in shiraz iran

natural enemies of cypress tree mealybug, planococcus vovae (nasonov) (hem., pseudococcidae), and their parasitoids in tehran, iran

the cypress tree mealybug, planococcus vovae (nasonov) (hem., pseudococcidae) is one of the most important pests of cypress trees, especially cupressus semprevirens fastigiata l. in iran. a survey was carried out to determine the natural enemies of cypress tree mea-lybug in tehran province, during 2004-2005. as a result of this study, 17 species of preda-tors, parasitoids and hyperparasitoids b...

Natural enemies of the Coccinellidae: Parasites, pathogens, and parasitoids

1049-9644/$ see front matter Published by Elsevier doi:10.1016/j.biocontrol.2009.05.008 * Corresponding author. Address: Biological Cont National Biological Control Laboratory, USDA-ARS, Mi Lee Road, Stoneville, MS 38776, USA. Fax: +1 662 312 We review aspects of the life histories of representative enemies of coccinellids (both entomophagous and phytophagous species) and expose both potential ...

Survey for cotton mealybug, Phenacoccus solenopsis (Tinsley) and its natural enemies.

Mealybug was considered to be a minor pest of cotton but it emerged as a major pest in 2006-2007 in North and Central zones. Extensive field surveys conducted in cotton fields during 2007-09 in Haryana, Rajasthan and Punjab in the North zone and Madhya Pradesh, Maharashtra and Gujarat in the Central zone indicated that Phenacoccus solenopsis was the only major species of mealybug recorded on co...

Food web structure of three guilds of natural enemies: predators, parasitoids and pathogens of aphids.

1. Most communities of insect herbivores are unlikely to be structured by resource competition, but they may be structured by apparent competition mediated by shared natural enemies. 2. The potential of three guilds of natural enemies (parasitoids, fungal entomopathogens and predators) to influence aphid community structure through indirect interactions is assessed. Based on the biology, we pre...

Natural enemies of cotton whitefly bemisia tabaci gennadius homoptera aleyrodidae in fars province of iran

A survey of alfalfa aphids and their natural enemies in Isfahan, Iran, and the effect of alfalfa strip-harvesting on their populations

در طی دو سال (1384-1383) نمونه‌برداری از جمعیت شته‌های یونجه و دشمنان طبیعی آن‌ها در اصفهان، در مجموع 4 گونه شته و 58 گونه از دشمنان طبیعی آن‌ها شامل 45 گونه شکارگر، 11 گونه پارازیتوئید و 2 گونه کنه‌ی پارازیت جمع‌آوری و شناسایی شد. علاوه بر این، 5 گونه هیپرپارازیتوئید نیز جمع‌آوری گردید. در هر روز نمونه‌برداری، شش نمونه هر کدام شامل 20 بار تور‌زدن‌ به وسیله‌ی یک تور حشره‌گیری با قطر 38 سانتی‌مت...