Pumpkin Center, Kern County, California. This article is about the unincorporated community in Kern County. For the unincorporated community in Lassen County, see Pumpkin Center, Lassen County, California.
When to harvest chestnuts? Chestnuts donât ripen at the same time and chestnut harvest time can span as much as five weeks, although the nuts generally ripen in a 10- to 30-day span of time in late August and September. Allow the nuts to fall from the tree naturally.
Weevil grubs emerge from chestnuts shortly after harvest, but the. problem begins before the chestnuts ripen. Adult weevils lay tiny eggs. inside the shell, while the nuts are still on the tree. After hatching, the. grubs eat tunnels through the nut kernel. Sometime after nut drop, they. eat their way out through the shell, leaving pencil lead-sized exit holes in. the shell.