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Latest Geocoris Stories

Olfactory Signals Help Female Moths Choose Best Egg-laying Sites
2013-06-03 11:00:17

Max Planck Institute for Chemical Ecology Small changes in the composition of green leaf volatiles induced by herbivory guide ovipositing female moths to unattacked plants Researchers at the Max Planck Institute for Chemical Ecology, Jena, Germany, discovered that the ability of Manduca sexta moths to recognize changes in the profile of volatile compounds released by plants being attacked by Manduca caterpillars allows them to lay their eggs on plants that are less likely to be attacked...

Biological Pest Control Using Predators Of Insect Eggs And Larvae Increases Plant Fitness
2012-10-16 15:15:40

To solve the acute, global problem of securing food resources for a continuously growing population, we must work constantly to increase the sustainability and effectiveness of modern agricultural techniques. These efforts depend on new insights from plant ecology, particularly from work on native plants that grow in the primordial agricultural niche. Based on field studies on wild tobacco plants in the Great Basin Desert, Utah, USA, researchers of the Max Planck Institute for Chemical...

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2010-08-26 23:34:48

The dilemma for tobacco hornworm larvae: By feeding on tobacco leaves they unintentionally and rapidly transform plant substances into attractant signals that betray their location to their own natural enemies -- with lethal consequencesPlants have developed a sophisticated defense system. They can not only directly fend off herbivores by producing toxins, but also do so indirectly by emitting odorant molecules into the atmosphere that are perceived by predatory insects; these predators are...