Widely used pesticide toxic to honeybees

Jul 18, 2013

An international research team—Drs. Stephan Caravalho, Luc Belzunces and colleagues from Universidade Federal de Lavras in Brazil and Institut Nationale de la Recherche Agronomique in France - concludes that the absence of mortality does not always indicate functional integrity.

Deltamethrin, fipronil and spinosad, widely used pesticides in agriculture and home pest control, were applied to healthy honeybees and proved toxic to some degree irrespective of dosage.

At sublethal doses, the pesticides modulated key enzymes that regulate physiological processes, and immune responses, such as homing flight, associative learning, and brood development. Sensitivity to these insecticides and foraging range (as far as 1.5 to 3 km) make A. mellifera an optimal candidate for monitoring the environmental impacts of pesticides.

Explore further: Danish museum discovers unique gift from Charles Darwin

Provided by Society of Environmental Toxicology and Chemistry

5 /5 (4 votes)
add to favorites email to friend print save as pdf

Related Stories

Pesticide combination affects bees' ability to learn

Mar 27, 2013

Two new studies have highlighted a negative impact on bees' ability to learn following exposure to a combination of pesticides commonly used in agriculture. The researchers found that the pesticides, used ...

Study: Pesticides found in wine

Apr 04, 2008

A European environmental group said pesticides used on grapes were found in 35 of the 40 bottles of wine they tested.

Even low doses of insecticides put honeybees at risk

Sep 01, 2011

Scientists in France have discovered that honeybees are at a higher risk of dying from infection by Nosema ceranae (N. ceranae) when they are exposed to low doses of insecticides. The results, presented in ...

Recommended for you

Danish museum discovers unique gift from Charles Darwin

Aug 29, 2014

The Natural History Museum of Denmark recently discovered a unique gift from one of the greatest-ever scientists. In 1854, Charles Darwin – father of the theory of evolution – sent a gift to his Danish ...

Top ten reptiles and amphibians benefitting from zoos

Aug 29, 2014

A frog that does not croak, the largest living lizard, and a tortoise that can live up to 100 years are just some of the species staving off extinction thanks to the help of zoos, according to a new report.

User comments : 0