dSPE is used to clean up extracted samples of these substances in QuECHeRS (“catchers”) analysis. Differences in the MRLs of these substances especially affect exports in developing countries. Temperature inversions can accelerate “drift” in volatile examples of these substances like Dicamba. Imidacloprid is the most common member of a neuroactive class of these substances, the neonicotinoids. Reliance on these non-specific chemicals (10[1])is decreased in a method of “integrated management” of their targets. Resistance to one of these substances named glyphosate is a property of Monsanto’s (10[1])Roundup Ready line. One of these substances that caused widespread eggshell thinning in bald eagles in the 1960s was criticized in Silent Spring. For 10 points, DDT is an example of what chemicals that target hazards to crops? ■END■