Organisms are attacked by different natural enemies present in their habitat. While enemies such as parasitoids and predators will kill their hosts/preys when they successfully attack them, enemies such as micropredators will not entirely consume their prey. However, they can still have important consequences on the performance and ecology of the prey, such as reduced growth, increased emigrati...

the grape erineum mite (gem), colomerus vitis (pagenstecher) (acari: eriophyidae) is considered to be one of the most important pests, that sometimes causes irreversible damages to grapevine cultivars in western parts of iran. studies were carried out in order to find natural enemies associated with gem, during 2011-2013. results indicated that natural enemies included two species of predatory ...

Robert I. Colautti,* Anthony Ricciardi, Igor A. Grigorovich and Hugh J. MacIsaac Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada N9B 3P4 Redpath Museum, McGill University, Montreal, Quebec, Canada H3A 2K6 *Correspondence: E-mail: [email protected] Abstract A recent trend in invasion ecology relates the success of non-indigenous species...

Eight 0.2–0.4 ha (0.5–1.0 A) sites managed by landscape professionals were monitored biweekly for beneficial arthropod activity. More than 30 generalist predator taxa were identified. Spiders and green lacewings were the most numerous taxa and both were found on all plant taxa sampled. Green lacewings, especially the egg stage, were the most numerous natural enemies detected on birch, crape myr...

Pest insects can damage agricultural crops, consume and/or damage harvested food, or transmit diseases to humans and animals. The past 30 years has witnessed a dramatic reemergence of epidemic vector-borne diseases throughout much of the world (Atkinson, 2010). Prior to the development and commercial success of synthetic insecticides in the mid1930s to 1950s, botanical insecticides were the for...

20 Modern agricultural landscapes favour crop pests: herbivores benefit from resource 21 concentration and/or the absence of natural enemies in large areas of intensively farmed fields 22 interspersed by small fragments of natural or non-crop habitats. 23 Conservation biological control (CBC) aims at increasing the functional diversity of 24 agricultural landscapes to make them more hospitable ...

Crapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is a newly introduced insect pest on crapemyrtles, Lagerstroemia spp. (Myrtales: Lythraceae), one of the most popular flowering shrubs in the U.S. Since first detected in Texas in 2004, this pest has spread to twelve states causing losses to stakeholders. To develop a management plan, we revie...

1049-9644/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.biocontrol.2010.05.013 * Corresponding author. E-mail address: [email protected] (J. Silve Ants frequently protect honeydew-excreting hemipterans from their natural enemies in exchange for food, and these interactions can have a negative impact on biological control. Invasive ant species, such as the Argentine ant, Linepithe...

In the north central United States, populations of the exotic soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), are highly variable across space, complicating effective aphid management. In this study we examined relationships of plant nutrients, landscape structure, and natural enemies with soybean aphid abundance across Iowa, Michigan, Minnesota, and Wisconsin, representing the ...