Hooked on citrus

Amateur Gardening - - A Gardener’s Miscellany -

Have you no­ticed that bees of­ten go mad for citrus flow­ers? This is be­cause bees, like hu­mans, can get hooked on caf­feine!

Sev­eral va­ri­eties of citrus plants have toxic con­cen­tra­tions of caf­feine in their leaves and other tis­sues, as well as low con­cen­tra­tions (sim­i­lar to that in weak cof­fee) in the nec­tar it­self.

Nat­u­rally caf­feine-laced nec­tar in some plants en­hances the learn­ing process for bees, which means they are more likely to re­turn to those flow­ers.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.