Davis Garden Show, April 22, 2021 -- Tomatoes, part 3

What causes stone fruit to "twin"?  Are twins okay to eat? Should you thin them out? 

After Don Shor and Lois Richter answer a few questions, it's on to Tomatoes Part 3. 

Find part 1 (April 8) and part 2 (April 15) in the archives.