The noun YO-YO has 1 sense: 1  1. a toy consisting of a spool that is reeled up and down on a string by motions of the hand. 2  Meaning: 3  A toy consisting of a spool that is reeled up and down on a string by motions of the hand. 4  Classified under: 5  Nouns denoting man-made objects. 6  Hypernyms (yo-yo is a kind of...):
Malathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication.In the US, it is the most commonly used organophosphate insecticide.alathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication.
The list of federally registered restricted use pesticides published herein is intended solely to assist applicators, educators and consumers in recognizing products which may be classified for such use.or a current list of federally restricted use pesticides, contact the nearest EPA office. In addition, individual state lead agencies must register these products before sale and use in their respective states.