Onions are good about indicating when they are ready to harvest. The bulbs push themselves out of the ground and send three noticeably obvious signs that they have taken all they can from the leaves, ...

Epicuticular waxes act as a critical protective barrier for plants, shielding them from water loss, temperature stress, and insect attacks. In onions, this wax layer creates the characteristic white, ...

Now is the time to buy onion seeds, which are cheaper and come in more interesting varieties than mail-order transplants. Here’s what you need to know. By Margaret Roach There are some things I never ...

As you’re planting your spring kitchen garden, leave room for one of cooking’s basics, an ingredient that’s delicious enough to bring tears to your eyes. Growing onions in Colorado is easy, and if you ...

A, Stemphylium leaf blight (SLB) lesion on an onion leaf. B, An SLB disease focus in a commercial onion field in New York. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...