Boy's discovery reveals highly complex plant-insect interaction

When eight-year-old Hugo Deans discovered a handful of BB-sized objects lying near an ant nest beneath a log in his backyard, he thought they were a type of seed. His father, Andrew Deans, professor of entomology at Penn ...

Plant-nibbling insects may make it cloudier and cooler

Plants can release certain chemicals to shield themselves from high temperatures and potentially communicate with other plants. They also release these chemicals in response to stress, including when insects chomp on their ...

A tree planter's guide to environmental justice

We might all agree that trees do good things for the air, for shade and for the climate, but we might not all see eye-to-eye on where and how they should be planted in our own backyards. In a recent paper, North Carolina ...

Using sap flow to infer plant hydraulic properties

A foundational element of plant metabolism is the transport of water from the ground to the leaves. In most plants, this task is facilitated by xylem, a tissue whose structure provides hydraulic pathways that aid the water's ...

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