e economy of a county in state a depends largely upon its orange-produce industry. a county in state b grows apples and sells a large amount of them to the state a county. recently, it was discovered that a new type of fruit fly has infested apples grown in the state b county. the eggs laid by this type of fruit fly are physically impossible to detect and are not harmed by the pesticides used to prevent other types of fruit flies. in addition, the environmental impact and risks of this fruit fly are unknown. the state a county recently passed an ordinance prohibiting the importation of apples grown in the state b county. the stated purpose of the ordinance is to protect the integrity of the natural resources in the state a county. if an apple grower from the county in state b challenges the constitutionality of the ordinance, how should the court rule?