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Sat, Apr 20

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Online event

Gall Week Spring 2024 event

Join BioBlitz Club and gall lovers all around to celebrate the 5nd Gall Week event, this time in the spring!

Gall Week Spring 2024 event
Gall Week Spring 2024 event

Time & Location

Apr 20, 2024, 12:10 AM – Apr 28, 2024, 11:50 PM

Online event

About the event

This Gall Week event will focus on the elusive spring galls. Many gall Wasps, for example, have two alternate generations. Their spring galls are home to the bisexual generation, therefore include both male and female wasps inside. The larvae develop quickly, pupate, and the adults hatch, meet, and mate, and finish their life cycle. Let's try and document as many as we can - there are still many new species waiting to be discovered! 

Gall Week events

  • Make observations between 4/20-4/28, and add them manually to our iNaturalist project Gall Week Spring 2023
  • Spring Baylands BioBlitz - 4/15/2023, from 9-11 am. We will document galls and gulls :) Info here

How to get started? 

You can look for specific host plants, specific groups of gall inducers, or anything you find interesting. If you've never done this before, you can check what are the best host plants in your area. You can use gall or insect books from your area, websites (such as Gallformers.org), and iNat. We highly recommend listening to an interview of gall expert Adam Kranz on the podcast Natures Archive, and a shorter episode about Gall Week 2021 and the latest episodeabout spring galls here. You can also look at all our previous Gall Week projects here. Another good way to start is to look at one of the gall projects and see what other people found in your area:

You can download fliers for some of the common Bay Area galls on our main page here

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