It's that time of the year! Jumping oak galls may be found under the canopy of our mighty valley oaks. When Cynipid wasps sting the the underside of the leaves, the oak forms a gall that holds an egg. When the galls fall to the ground, the jumping movement of the developing wasps helps move the gall further into the soil and leaf litter for overwintering. While there may be leaf scorching from this interaction, most trees remain healthy. Enjoy observing these seasonal wonders! #ucdavisoaks #ucda
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Oak galls are falling and browning right now, so it’s the perfect time to collect them for fun projects like making your own ink! 🖋️ ✨ And not just any old ink, the same ink that the Magna Cater was written in! 😮 Picks galls from the ground when they’re brown and you can see one or more neat, round holes; that way you know the wasp 🐝 larvae has matured and flown away. Collecting galls after the wasps have gone ensures you’re working with fully developed, tannin-rich material without harming w
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