EPA is revoking certain tolerances for the fungicides spiroxamine and triflumizole, the herbicides carfentrazone-ethyl and quizalofop ethyl; the insecticides amitraz, oxamyl, propetamphos, and spinosad; the plant growth regulators ethephon and mepiquat; and the tolerance on rice straw for multiple active ingredients. Also, EPA is modifying certain tolerances for the fungicides mancozeb, thiram, and triflumizole. In addition, EPA is establishing new tolerances for the fungicide mancozeb. Also, in accordance with current Agency practice, EPA is making minor revisions to the tolerance expressions for mepiquat and thiram. In addition, EPA is restoring the listings of tolerances on bulb onion and pear for methomyl residues to remedy inadvertent drafting errors and cover existing registrations. EPA is deferring a decision on the malathion tolerances at this time.