I've never seen a "Weed Worm" but it makes me wonder how many I have smoked that were in the center of a bud I never checked.

Don't worry though.

"The U.S. Food and Drug Administration (FDA) also allows certain levels of natural or unavoidable defects in foods, as long as they doesn't pose a health risk.

For example, chocolate can have up to 60 insect fragments per 100 grams, tomato sauce can contain 30 fly eggs per 100 grams, and peanut butter can have 30 insect fragments per 100 grams (3.5 ounces), according to the FDA. "