Sentences with phrase «protect aphids»

Ants protect aphids from predators, such as lady bugs and wasps, and aphids secrete nutritious honeydew for ants to eat.

The study is the first to show conclusively that a bacterial symbiont can protect aphids against parasites, says Richard Stouthamer, an ecologist at the University of California, Riverside.

To find out if the symbionts help protect the aphids, Oliver's group injected bacteria - free aphids with three varieties of the bacteria — T - type, R - type, and U-type.

The types protected the aphids to various degrees.

Not exact matches

Parasitic wasps protect the plants against aphid infestations, Johnson explained as he described wasp - aphid interaction on cup plants.

Last week here at the Ecological Society of America meeting, ecologists described how a little - studied type of bacteria protects pea aphids against parasitic wasps.

They were first manufactured in the 1970s to protect crops from aphids, and act against insects» nervous systems.

They also pose natural and economic threats, competing with native ants and pollinators, and protecting plant pests such as aphids and scales in return for the sweet honeydew secretions that these insects produce.

Symbiotic relationships occur on a spectrum from parasitism (one species benefits at the expense of the other, such as a tick that sucks its host's blood) to mutualism (both organisms benefit, like when certain ants farm aphids for their honeydew while in return protecting them from predators).