nasonovia ribisnigri (mosely) is one of the most important pests of the lettuce plant and it was reported for the first time in ahvaz in 2008. in order to investigate the dominant species of its natural enemies and their population fluctuations, sample were taken arbitrarily from fifty plants twice a week during the growing season in 2010-2012. in this study, ten species of predators, three spe...

Abstract Conservation biological control could be an alternative to insecticides for the management of aphid Myzus persicae (Sulzer). To develop sustainable strategies M. in peach orchards Mediterranean, a 2-yr field experiment was conducted identify key predators aphid; determine whether proximity insectary plants boost natural enemies comparison resident vegetation; and selected enhance enemy...

Intraguild predation (IGP)–the of a natural enemy species upon another one sharing prey species–is relatively frequent in both and agroecosystems. This may reduce pest control the establishment predator populations during mass release biological agents or multi-predator systems due to increased mortality predators. IGP is exacerbated isolated space-limited such as greenhouses, reduced food reso...

Prey can ease the burden of exploitation by attracting a third party that interferes with their predators. Such is case for plant-ant or aphid-ant mutualisms, where victim supplies food to ants, while ants attack drive away offenders. Since are adaptive foragers, defense services be altered alternative sources (e.g., other plants, human-supplied resource). This article explores prey-predator-an...

Characterizing trophic networks is fundamental to many questions in ecology, but this typically requires painstaking efforts, especially to identify the diet of small generalist predators. Several attempts have been devoted to develop suitable molecular tools to determine predatory trophic interactions through gut content analysis, and the challenge has been to achieve simultaneously high taxon...

The molecular detection of predation is a fast growing field, allowing highly specific and sensitive detection of prey DNA within the gut contents or faeces of a predator. Like all molecular methods, this technique is prone to potential sources of error that can result in both false positive and false negative results. Here, we test the hypothesis that the use of suction samplers to collect pre...

We present here the first complete genomic Aphid lethal paralysis virus (ALPV) sequence isolated from cucumber plant RNA from East Timor. We compare it with two complete ALPV genome sequences from China, and one each from Israel, South Africa, and the United States. It most closely resembled the Chinese isolate LGH genome.

Multiple predator effects (MPEs) can modify the strength of pest regulation, causing positive or negative deviations from those that are predicted from independent effects of isolated predators. Despite increasing evidence that omnivory can shape predator-prey interactions, few studies have examined the impact of alternative plant food on interactions between multiple predators. In the present ...