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.
Fill a pesticide or liquid fertilizer sprayer with malathion. The amount of malathion that you need to use varies widely depending on the type of plant that you want to treat. Follow the manufacturer's directions for application rates. Spray the malathion on the affected plants.