NOTE: This is part 9 in a series of 11 articles. They must also be allowed to vent when they are cooked, or they will expand and explode. Asian chestnuts (Castanea crenata or C. mollissima) are mentioned in poetry as far back as 5,000 years ago and early Europeans arriving in the New World found forests of American chestnuts (Castanea sp.) Chestnuts were a staple food in Southern Europe, Turkey and parts of Asia where they thrived in areas where the rocky, thin soil made it impractical to grow grains. In the warehouse, chestnuts are usually subject to high temperatures so as to remove worms and to prevent the fungi attack. Larger chestnut weevils (Curculio caryatrypes) are about 3/8 inch long with 5/8-inch-long female beaks and 1/4-inch-long male beaks. For snacks and salads, you want to keep the chestnuts dry, so roasting is her pick. Description The papaya fruit flies lay their eggs inside the unripe, 2- to 3-inch fruit. The worms that may be found in chestnuts are larvae of the chestnut weevil. Chestnut weevil larvae may be found in some chestnuts. Greater weevil grubs chew through the nut shells and fall to the ground before nuts drop in late summer or early autumn. What I do is put one slit on each side, near the tip of the nut. Drying the buckeye prevents the nut from rotting and preserves its form for a long life as a necklace or good-luck charm. Get the best deals on Wormy Chestnuts when you shop the largest online selection at eBay.com. Weevil grubs can survive heat up to 117 F. Adult chestnut weevils drop from the tree easily. It will require multiple applications from time to time to keep it fresh. If you do not want to spray, collect the nuts as soon as possible this fall and blanch them in boiling water for a minute or two to kill any weevil larvae developing within. Dingy or mottled shells may indicate mold, and small pinholes likely indicate that worms have been drilling; avoid such nuts. If sanitation is practiced consistently, it will prevent weevil populations from increasing. American Chestnut Foundation: Frequently Asked Questions, University of Kentucky College of Agriculture and Food Environment: Nut Weevils, University of Missouri Center for Agroforestry: Chestnut Weevils, Ohio Department of Natural Resources: American Chestnut (Castanea Dentata), University of California Integrated Pest Management: Active Ingredient: Carbaryl, Sevin SL: Carbaryl Insecticide Product Label, University of Virginia Department of Biology: American Chestnut, Castanea Dentata, Insects That Get Inside of Black Walnut Hulls. Therefore, the best way to control this insect problem, is to have thorough sanitary practices. Later on, moisture must be reduced. Godawa holds a degree in biology and environmental science with a focus on entomology from the University of Toronto. Get some dormant oil and follow the directions for your tree...........spray again in the spring up until the buds open. It is most effective when weevil populations are relatively low, (less than 5% infestation), and the orchard is isolated from other chestnut trees. Chestnuts aren't so much tough to crack, as tricky to peel. Their shells are much softer and more malleable than other tree nuts, but that means any "cracking" doesn't work all that well. What you use depends on the kind of use it will get. I’ve read also where a 120 degree water bath will prevent the eggs from hatching without ruining the quality of the nut meat or the germination rate if used for seed. Good orchard hygiene helps, getting all … Dispose of damaged nuts, however, because they still may contain the pests. The process of metabolism in the body involves oxidation, leading to production of free radicals which are harmful, as they have the potential to break into cancer causing cells. 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