Hard-shelled, hollow, split 2-3 inch fruits suggest your yellow crookneck may have crossed with gourds — a common issue when seed purity isn't maintained.
This isn't a cultural problem — it's genetic. Your growing practices are likely fine; the seed source is the issue.
Green Markings on Yellow Squash: Variety Trait, Not Deficiency
Round Butternut Squash: Edible Cross-Pollination Result
Mystery Squash: Is It a Spaghetti Squash-Zucchini Hybrid?
Sudden Squash Death: Squash Vine Borer Suspect
First-Year Squash Problems: Speckled Leaves, Yellow Fruit, Rotting
Ensuring Late-Season Butternut Ripening
Yellow Squash Turning Brown on Bottom: Blossom-End Rot Solutions
Can You Plant Seeds from Cooked Spaghetti Squash? No—Heat Kills Viability
Harvesting Winter Squash After Vine Breakage: Ripeness and Storage
Identifying a Volunteer Squash: Cross-Pollination and Harvest Tips
Spaghetti Squash with Watermelon Coloring: Cross-Pollination or Variety Trait?
Copyright © www.100flowers.win Botanic Garden All Rights Reserved